Psychiatric Neuroimaging: Towards Grounding Clinical Diagnosis in Biology
Neuro Monday, 17 May 2021

Oral Session - Psychiatric Neuroimaging: Towards Grounding Clinical Diagnosis in Biology
Neuro
Monday, 17 May 2021 18:00 - 20:00
  • Three-Compartment IVIM Model Applied to Psychotic Spectrum Disorders
    Faye McKenna1, Yu Veronica Sui1, Hillary Bertisch1, Donald Goff1, and Mariana Lazar1
    1New York University School of Medicine, New York, NY, United States
    We found significantly increased perfusion fraction, free water, and anisotropic diffusion of tissue in psychotic spectrum disorder patients compared to healthy controls by applying a three compartment IVIM technique, which also related to psychosis duration and cognition.
    Figure 3. Group differences between healthy controls and the PSD schizoaffective subtype in gray matter cortical areas in a) perfusion fraction (PF), b) free water (FW) and (c) fractional anisotropy of tissue (FAt) measures. Green indicates ROIs with significant differences at q < .05 FDR BH corrected, blue indicates ROIs with differences noted at p < .05.
    Figure 4. Significant Pearson’s correlations between IVIM metrics (PF, FW and FAt) and the duration of psychosis in the PSD schizoaffective and schizophrenia subtypes in gray and white matter ROIs. All plots reached significance at the FDR BH q < .05 correction-level.
  • VAE deep learning model with domain adaptation and harmonization for diagnostic classification from multi-site neuroimaging data
    Bonian Lu1, Rangaprakash Deshpande2, Madhura Ingalhalikar3, and Gopikrishna Deshpande1
    1Electrical and Computer Engineering, AU MRI Research Center, Auburn University, Auburn, AL, United States, 2Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Medical School and Harvard-MIT Health Sciences and Technology, Charlestown, MA, United States, 3Symbiosis Center for Medical Image Analysis, Symbiosis International University, Pune, India
    We applied deep learning-based domain adaptation and statistical ComBat harmonization for improving diagnostic accuracy from multi-site neuroimaging data and show robust performance of our approach in the context of diagnostic classification of ASD.
    Figure 1. Three major steps in learning VAE-MMD model. 1. For training we input both ABIDE I with labels and ABIDE II training datasets into VAE-MMD model. The original t-SNE figure and domain adapted t-SNE figure (both shown in Fig.2) are generated in the beginning and last iteration of this process. The total loss is constructed by SSL loss, reconstruction loss and MMD loss. 2.For validation, ABIDE I and ABIDE II validation dataset are used to fine-tuning the hyperparameters α and β. 3. For testing, ABIDE I & ABIDE II test dataset are used in testing model to evaluate the model’s performance
    Figure 3. Three-way classification result (in terms of % accuracy) in different scenarios with/without domain adaptation (DA) and statistical ComBat harmonization.
  • Data-driven clustering differentiates subtypes of major depressive disorder with distinct connectivity-symptom association
    Yanlin Wang1, Shi Tang1, Xinyu Hu1, Yongbo Hu1, Weihong Kuang2, Zhiyun Jia1, Xiaoqi Huang1, and Qiyong Gong1
    1Department of Radiology, West China Hospital, Sichuan University, Huaxi MR Research Center (HMRRC), Functional and molecular imaging Key Laboratory of Sichuan Province, Chengdu, China, 2Department of Psychiatry, Sichuan University West China Hospital, Chengdu, China
    We defined a novel two specific symptoms dominated subtypes of depression that were underlined by distinct network patterns, which did not only improve our understanding of heterogeneous but also lead to the development of leveraging multimodal data types to define subtypes of depression.
    Figure 1. Overview of data processing and analysis pipeline. Group-ICA was used to calculate and extract the average signal time series from validated brain parcellations. Following data reduction were performed by a rCCA. The subtypes of depression were defined by k-means clustering based on combination of neuroimaging and clinical data. Finally, group comparisons of ICNs and clinical symptoms between each subgroup and HC were implemented a one-way ANOVA analysis, respectively. PLSR analysis was employed to assess the association between these features in each subgroup.
    Figure 4. Statistically significant FNC differences between MDD, MDD-subtypes and HCs. (A) A heatmap and a circular plot showing were significantly abnormal FNC in MDD relative to HCs. (B) A heatmap showing the significant results of ANOVA in FNC among MDD-subtypes and HCs. (C) Three circular plots showing significant FNC patterns between subtype1, subtype2 and HCs using post-hoc analyses. Statistical significance for all comparisons were thresholded at p < 0.05, FDR corrected for cluster level and p < 0.001, uncorrected for voxel level.
  • Glutamatergic responses to a color-word Stroop task in first-episode schizophrenia: A 7-Tesla functional MRS study
    Peter Jeon1, Michael MacKinley2, Kara Dempster3, Dickson Wong4, Lena Palaniyappan1,2,5,6, and Jean Theberge1,5,7
    1Medical Biophysics, Western University, London, ON, Canada, 2Neuroscience, Western University, London, ON, Canada, 3Psychiatry, Dalhousie University, Halifax, NS, Canada, 4Schulich School of Medicine and Dentistry, Western University, London, ON, Canada, 5Psychiatry, Western University, London, ON, Canada, 6Robarts Research Institute, London, ON, Canada, 7Lawson Health Research Institute, London, ON, Canada
    Functional MRS at 7T using a color-word Stroop stimulus reveals differences in glutathione dynamics between first-episode schizophrenia and healthy control groups in the anterior cingulate cortex.
    Figure 1: Spectral fit of one subject during the Rest period (baseline). Metabolites included in the fitting template were: alanine, aspartate, choline, creatine, GABA, glucose, glutamate, glutamine, glutathione, glycine, lactate, myo-inositol, N-acetyl aspartate, N-acetyl aspartyl glutamate, phosphorylethanolamine, scyllo-inositol, and taurine. Macromolecules were not included due to the long echo time used.
    Figure 2: Glutathione (GSH) dynamics. Plots of (a) mean GSH concentration [mM], (b) mean GSH concentration difference [mM] relative to baseline (‘Rest’), and (c) mean GSH percentage change (%) normalized to baseline (‘Rest’). Solid blue, solid red, light blue, and pink lines represent mean HC, mean FES, individual HC, and individual FES values, respectively. Asterisks above time points indicate significant difference between group.
  • Positive emotional training with real-time functional MRI amygdala neurofeedback increased hippocampal volume for PTSD
    Masaya Misaki1, Beni Mulyana1,2, Vadim Zotev1, Brent E Wurfel3, Frank Krueger4, Matthew Feldner5, and Jerzy Bodurka1,6
    1Laureate Institute for Brain Research, Tulsa, OK, United States, 2Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, United States, 3Laureate Psychiatric Clinic and Hospital, Tulsa, OK, United States, 4Neuroscience Department, George Mason University, Fairfax, VA, United States, 5Department of Psychological Science, University of Arkansas, Fayetteville, AR, United States, 6Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK, United States
    Positive emotion training with left amygdala fMRI neurofeedback reduced symptoms and increased the hippocampal left CA1-head volume for combat veterans with PTSD. A small hippocampus in PTSD is a treatable alteration in a part of the subfields.
    Figure 2.
    Figure 1.
  • Reductions of fibre-specific white matter metrics in autism are determined by the level of intellectual functioning: a fixel-based analysis
    Chun-Hung Yeh1,2, Rung-Yu Tseng1, Susan Shur-Fen Gau3, and Hsiang-Yuan Lin4
    1Institute for Radiological Research, Chang Gung University and Chang Gung Memorial Hospital, Taoyuan, Taiwan, 2Department of Child and Adolescent Psychiatry, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan, 3Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan, 4Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, ON, Canada
    Based on multi-band multi-shell diffusion MRI data and fixel-based analysis, reduced white matter fiber density in the corpus callosum associated with autism is driven by autistic individuals comorbid with developmental disabilities.  
    Figure 2: TD vs LF-ASD. Fixels are colour-coded by family-wise error corrected p-values and overlaid on the cohort FOD template. Upper and middle rows: Fixels with a significant (P<0.05) lower fibre density (FD) in the LF-ASD subgroup than TD group, illustrated at two slice locations per plane. Bottom row: Fixels with a significant (P<0.05) lower fibre density and cross-section (FDC) in the LF-ASD subgroup than TD group.
    Figure 3: Low IQ ASD vs minimally verbal LF-ASD. Fixels are colour-coded by family-wise error corrected p-values and overlaid on the cohort FOD template. Upper and middle rows: Fixels with a significant (P<0.05) lower fibre density (FD) in the minimally verbal ASD than the low IQ-only subgroup, illustrated at two slice locations per plane. Bottom row: Fixels with a significant (P<0.05) lower fibre density and cross-section (FDC) in the minimally verbal ASD than the low IQ-only subgroup.
  • Cerebral hemodynamic alterations associated with an in-scanner drug trial in adults with bipolar depression
    William S.H. Kim1,2, Mikaela K. Dimick3,4, Danielle Omrin4, Beverley A. Orser4,5, Benjamin I. Goldstein4,6, and Bradley J. MacIntosh1,2
    1Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada, 2Sunnybrook Research Institute, Toronto, ON, Canada, 3Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada, 4Sunnybrook Health Sciences Centre, Toronto, ON, Canada, 5Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada, 6Department of Psychiatry, University of Toronto, Toronto, ON, Canada
    Multiple post-label delay arterial spin labeling detected significant treatment effects on cerebral blood flow and arterial transit time change following nitrous oxide or midazolam treatment in a cohort of adults with treatment-resistant bipolar disorder.
    Figure 2. Regional changes in CBF (left), ATT (middle), and aCBV (right). A) Mean CBF in the frontal, parietal, and temporal lobes. B) Mean ATT in frontal and parietal lobes. C) Mean aCBV in the bilateral insula. Dashed lines represent individual participants. Insets illustrate regions of interest.
    Figure 1. Representative CBF (left), ATT (middle), and aCBV (right) maps from a single participant in the nitrous oxide treatment arm at baseline (top row) and post-treatment (bottom row).
  • Disparate Cognitive Patterns Captured by Subcortical Profiles in Schizophrenia
    Qiannan Zhao1, Hengyi Cao1,2,3, Yuan Xiao1, Qiyong Gong1, and Su Lui1
    1Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu, China, 2Division of Psychiatry Research, Zucker Hillside Hospital, Glen Oaks, NY, United States, 3Center for Psychiatric Neuroscience, Feinstein Institute for Medical Research, Manhasset, NY, United States
    We identified two subgroups of patients with schizophrenia based on regional subcortical volume, displaying distinct degree of subcortical and global morphological alterations, and cognitive impairment.
    Fig. 1. Cohen’s d of regional subcortical volume in two clusters of treated patients and the group of never-treated patients compared with those in healthy controls. HC, healthy controls.
    Fig. 2. Cohen’s d of cognitive function in two clusters of treated patients compared with those in healthy controls. ASIP, attention and speed of information processing; EF, executive functioning; HC, healthy controls; MS, motor speed; VF, verbal fluency; VM, verbal memory; WM, working memory.
  • Age-dependent effects of methylphenidate on emotional dysregulation: an RCT in stimulant treatment-naïve male ADHD patients
    Antonia Kaiser1, Marco A. Bottelier1,2, Michelle M. Solleveld1, Hyke G.H. Tamminga1,3, Cheima Bouziane1, Ramon J.L. Lindauer4,5, Paul J. Lucassen6, Michiel B. de Ruiter1,7, Anouk Schrantee1, and Liesbeth Reneman1
    1Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands, 2Child Study Center, Accare, Groningen, Netherlands, 3Dutch Autism and ADHD research center, University of Amsterdam, Amsterdam, Netherlands, 4Department of Child and Adolescent Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands, 5De Bascule, Academic Centre for Child and Adolescent Psychiatry, Amsterdam, Netherlands, 6Brain Plasticity Group, Swammerdam Institute for Life Sciences, Center for Neuroscience, University of Amsterdam, Amsterdam, Netherlands, 7Division of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, Netherlands
    We report in this randomized clinical trial, that although depressive and anxiety symptoms at baseline negatively predicted ADHD symptom change in adults, age-dependent effects on amygdala reactivity were absent.
    Figure 3.| FMRI results of the face-matching task. A) Region of interest analysis: Post-hoc tests showed significant differences between conditions in right amygdala reactivity for children at 8 weeks (DT) (mean with 95% CI). B) Exploratory whole-brain analysis: Increased reactivity in the Superior-Frontal-Gyrus and Paracingulate-Cortex in methylphenidate treated children from DT to PT and decreased reactivity in the Lateral-Occipital-Cortex in placebo-treated adults from BL to PT.
    Figure 1.| Timeline of the ePOD-MPH RCT. A 16-week double-blind, randomized, placebo-controlled, multicenter trial with methylphenidate and a blinded endpoint evaluation in stimulant treatment-naive patients with ADHD. We measured fMRI activity on a face-matching task at three times points (baseline (BL), eight weeks during treatment (DT), and one week after the trial (post-treatment (PT)). Furthermore, clinical measures of anxiety, depression, and emotional lability were assessed.
  • Application of graph theory across multiple frequency bands in obsessive-compulsive disorder
    Xue Li1, Hailong Li2, Lingxiao Cao2, Jing Liu2, Haoyang Xing1, and Xiaoqi Huang2
    1Department of Physics, Sichuan university, chengdu, China, 2Huaxi Magnetic Resonance Research Centre (HMRRC), West China Hospital of Sichuan University, chengdu, China
    Application of graph theory across multiple frequency bands in obsessive-compulsive disorder
    Fig 1. Global properties of whole brain in obsessive-compulsive disorder (OCD) and healthy control (HC) groups. The bars showed significant between-group differences in the area under the curves (AUC) of global metrics at slow2, slow3, slow4, slow5 and reference frequency bands (0.01-0.08Hz). (a) γ, normalized clustering coefficient; (b) λ, normalized characteristic path length; (c) σ, normalized small-world; (d) Global efficiency; (e) Modularity, Q. * p<0.05, with t test. referB, reference frequency band between 0.01 and 0.08 Hz.
    Fig 3. The significantly different nodal properties at slow3 band between the OCD patients and healthy controls. (p<0.05, FDR corrected). (a) Degree centrality; (b) Betweenness centrality; (c) Nodal clustering coefficient; (d) Nodal shortest path. Warm colors indicate increase in OCD grooup, cool colors indicate decrease.
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Digital Poster Session - Psychiatry Neuroimaging
Neuro
Monday, 17 May 2021 19:00 - 20:00
  • White matter connectome alterations in tuberous sclerosis complex patients with neuropsychiatric disorders revealed by DTI
    Jheng-Yan Li1, Jeng-Dau Tsai2,3, Chao-Yu Shen4,5, and Jun-Cheng Weng1,6,7
    1Department of Medical Imaging and Radiological Sciences, and Bachelor Program in Artificial Intelligence, Chang Gung University, Taoyuan, Taiwan, 2School of Medicine, Chung Shan Medical University, Taichung, Taiwan, 3Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan, 4Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan, 5Department of Medical Imaging, Chung Shan Medical University Hospital, Taichung, Taiwan, 6Medical Imaging Research Center, Institute for Radiological Research, Chang Gung University and Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan, 7Department of Psychiatry, Chang Gung Memorial Hospital, Chiayi, Taiwan
    GTA and NBS analysis provided better local segregation but worse global integration of the structural network (regular-like network) in TSC patients with intellectual disability, seizure, and higher Neurological Severity Score.
    Fig. 1 The NBS result showed the disrupted subnetwork in the TSC patients with intellectual disability compared with who have normal intelligence (ID < normal).
    Fig. 2 The NBS result showed the disrupted subnetwork in the TSC patients with intractable seizure of intractable compared with who are none / controlled (active + refractory < none + remission).
  • In vivo imaging of cerebral glutamate changes using chemical exchange saturation transfer MRI in a rat forced swimming test model of depression
    Do-Wan Lee1, Hwon Heo2, Jae-Im Kwon3, Yeon Ji Chae2, Joongkee Min3, Monica Young Choi2, Chul‐Woong Woo3, Dong‐Cheol Woo2,3, Kyung Won Kim1, Jeong Kon Kim1, Hyo Jeong Chin4, and Dong‐Hoon Lee4
    1Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, Republic of, 2Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, Republic of, 3Convergence Medicine Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Korea, Republic of, 4Department of Radiological Science, College of Health Sciences, Yonsei University, Wonju, Korea, Republic of
    This study aimed to visualize and quantitatively evaluate hippocampal glutamate changes in a rat model of depression using in vivo proton magnetic resonance spectroscopy (1H-MRS) and glutamate chemical exchange saturation transfer imaging (GluCEST).
    Figure 4. Reconstructed typical multi-parametric MR images and GluCEST maps of the control (a) and FS (b) rats. ADC, apparent diffusion coefficient; CBF, cerebral blood flow; FS, forced swimming test group; GluCEST, glutamate-weighted chemical exchange saturation transfer
    Figure 2. LCModel fitted results of the 1H-MRS spectra in the hippocampal region acquired from representative FS and control rats (a and b). The bar chart with data points shows the mean glutamate concentration, and vertical lines on each of the bars represent the standard deviation of the mean values (FS, forced swimming test group; ppm, part per million; VOI, volume of interest; green color: control group; red color: FS group; significance levels: ***p < 0.001).
  • Neuromelanin MRI as biomarker for treatment resistance in first episode schizophrenia patients
    Marieke Van der Pluijm1, Laura Meershoek1, Lieuwe De Haan2, Jan Booij1, and Elsmarieke Van de Giessen1
    1Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands, 2Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
    The current study demonstrate the potential of neuromelanin sensitive MRI (NM-MRI) as a potential biomarker for treatment resistance (TR) in first episode schizophrenia patients. The predictive value of NM-MRI for TR and optimal segmentation method still require further investigation.
    Figure 2. Neuromelanin Contrast Ratio (NMcr) in treatment resistant (TR) and responders.
    Figure 1. Example of the segmentation procedures on an individual scan. A)Individual image in MNI space B)Individual image in MNI space with standardized mask, red represents the substantia nigra (SN). The SN mask was drawn on a standardized average image, and then placed on the individual data. The Crus Cerebri (CC) (not shown here) was analyzed in a similar manner. C)Raw image D)Raw image with manually drawn masks, red represents the SN. The blue dots represents the CC.
  • Developmental changes of functional network connectivity dynamics in typical development and ADHD youth
    Yingxue Gao1, Xuan Bu1, Hailong Li1, Weijie Bao1, Kaili Liang1, and Xiaoqi Huang1
    1Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
    Developmental changes of connectivity dynamics from childhood to adolescence were differs between ADHD and TDC
    Figure 3. Functional network connectivity correlation matrix of four transient states in early childhood, late childhood and early adolescence group of ADHD and TDC.
    Figure 4. Temporal characteristics (from left to right: fraction time, dwell time, number of transitions) differences between each age group of ADHD and TDC.
  • How neurotransmitter concentrations in default-mode network modulate brain functional activities and connectivities in psychosis
    Xi Chen1, Dost Ongur1, and Fei Du1
    1McLean Hospital; Harvard Medical School, Belmont, MA, United States
    This study observed that the relationship between default-mode network neurotransmitters and the brain functional connectivity breaks down in first-episode psychosis patients, which provides novel insights into the mechanism of the brain network abnormalities of psychosis.
    Figure 1 Seed region of functional connectivity, MRS voxel location, and representative spectra of semi-LASER and MEGA-PRESS (6).
    Figure 4 Correlations between the MPFC-DLPFC resting-state connectivity and MPFC GABA and Glu concentrations respectively in schizophrenia and healthy control groups.
  • A Multi-Diffusion Model Investigation of White Matter Microstructure in Psychotic Spectrum Disorders
    Faye McKenna1, Yu Veronica Sui2, Hillary Bertisch2, Donald Goff2, and Mariana Lazar2
    1Radiology, New York University School of Medicine, New York, NY, United States, 2New York University School of Medicine, New York, NY, United States
    We employed NODDI-B, DKI and classical DTI and found that PSD and PSD sub-types had significantly different diffusivity especially in the secondary direction in sub-cortical WM ROIs compared to healthy controls which related to episodic and working memory and several schizotypal traits.
    Figure 2. Group differences in non-directional dMRI metrics: a) MD, b) FA, c) ODI, d) NDI, and e) MK in the sub-cortical white matter. Results are presented by projecting WM areas of difference onto the corresponding sub-cortical WM surface. T-tests were conducted between HC and PSD and PSD subtypes: schizoaffective (SZA), schizophrenia (SZ) and bipolar with psychotic features (BPF). Group differences that reached significance at the FDR BH q < .05 correction-level are shown in pink, while group differences that reached significance at p < .05 trend-level are shown in purple.
    Figure 3. Representative significant Pearson’s correlations between dMRI metrics: 1) NODDI NDI, ODI and ODIs, 2) DTI FA, RD and MD, and 3) DKI RK and MK and several tests of verbal learning and memory (HVLT), processing speed (symbol coding) and working memory (spatial span, symbol span) in both PSD and HC groups. Tests that reached FDR BH q < .05 correction-level are noted with an asterisk (*).
  • Investigation of Microstructural Alterations of the Corpus Callosum in Autism Using Multi-Shell Diffusion MRI and Quantitative Relaxometry
    Douglas C Dean1,2,3, Nagesh Adluru3, Jace B King4, Molly B Prigge4, Carolyn King4, Erin D Bigler5,6,7,8, June Taylor4, Nick Lange9, Brandon A Zielinski4,5,10, Janet E Lainhart3,11, and Andrew L Alexander2,3,11
    1Pediatrics, University of Wisconsin–Madison, Madison, WI, United States, 2Medical Physics, University of Wisconsin–Madison, Madison, WI, United States, 3Waisman Center, University of Wisconsin–Madison, Madison, WI, United States, 4Radiology, University of Utah, Salt Lake City, UT, United States, 5Neurology, University of Utah, Salt Lake City, UT, United States, 6Psychiatry, University of Utah, Salt Lake City, UT, United States, 7Psychology and Neuroscience Center, Brigham Young University, Provo, UT, United States, 8Neurology, University of California–Davis, Davis, CA, United States, 9Psychiatry, Harvard School of Medicine, Boston, MA, United States, 10Pediatrics, University of Utah, Salt Lake City, UT, United States, 11Psychiatry, University of Wisconsin–Madison, Madison, WI, United States
    Main findings highlight significant microstructural alterations of the corpus callosum in ASD using advanced diffusion imaging and quantitative relaxometry.
    Figure 1: Significantly lower NODDI NDI found in ASD compared to TDC (p<0.05, corrected). Lower NDI were observed in areas of the genu of the corpus callosum, superior longitudinal fasciculus, and uncinate fasciculus.
    Figure 2: Significant age by group interactions of qT1 between ASD and TDC subjects overlaid on the mean qT1 map. Significant interactions were localized in the in body and splenium of the corpus callosum.
  • Association of anterior cingulate glutathione and degree of depression in unmedicated bipolar disorder – a 7T study
    Pallab K Bhattacharyya1, Mark J Lowe1, and Amit Anand1
    1Cleveland Clinic Foundation, CLEVELAND, OH, United States
    ACC GSH level is unaffected in unmedicated bipolar depression in depressed state;  depression is less with higher GSH.
    Fig. 3. HAM-D score is inversely correlated with ACC GHS level.
    Fig. 1. Placement of a 20×20×30 mm3 voxel at left dorsal/rostral ACC.
  • Morphological changes of the corpus callosum in antipsychotic-naive first-episode schizophrenia before and 1-year after treatment
    Bo tao1, Yuan Xiao1, Wenjing Zhang1, Na Hu1, John A Sweeney1,2, and Su Lui1
    1Huaxi MR Research Center (HMRRC), Functional and molecular imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital of Sichuan University, Chengdu, China, 2Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati, Cincinnati, OH, United States
    The present study demonstrates deficits of the callosal morphology in schizophrenia, which may reflect an neurodevelopment aberration. And short-term antipsychotics may not have a significant impact on the CC morphology in the early stage of illness.  
    Table 1. Demographic and clinical characteristics of AN-FES and HCs.
    Table 2. Demographic and clinical characteristics of schizophrenia patient subgroups at baseline and after one-year follow-up.
  • Functional and structural brain alterations in anorexia nervosa: a multimodal meta-analysis of neuroimaging studies
    Ting Su1, Jia ying Gong2, Shao juan Qiu1, Pan Chen1, Guan mao Chen1, Jun jing Wang3, Li Huang1, and Ying Wang1
    1Medical Imaging Center, First Affiliated Hospital of Jinan University, Guangzhou, China, 2Department of Radiology, Six Affiliated Hospital of Sun Yat-sen University, Guangzhou, China, 3Department of Applied Psychology, Guangdong University of Foreign Studies, Guangzhou, China
    AN patients displayed decreased and increased functional activity in the ACC, MCC, and parahippocampal gyrus, decreased GMV in the MCC and left inferior parietal.  This multimodal meta-analysis identified functional activity and gray matter reductions in the ACC and MCC in patients with AN.
    Fig. 1 Flow chart of Meta-analysis of resting-state functional imaging and VBM studies of patients with AN
    Fig. 2 Meta-analyses results regarding a) resting-state functional activity difference between AN and HCs, b) GMV difference between AN and HCs, c) conjunction of resting-state functional activity differences and GMV differences. Areas with decreased resting-state functional activity value or GMV value are displayed in blue, and areas with increased resting-state functional activity value or GMV value are displayed in red. The color bar indicates the maximum and minimum SDM-Z values.
  • Changes in total choline level in left anterior cingulate during 26 weeks of Li treatment in patients with bipolar disorder
    Pallab K Bhattacharyya1, Mark J Lowe1, and Amit Anand1
    1Cleveland Clinic Foundation, CLEVELAND, OH, United States
    Choline level at left ACC in depressed bipolar disorder reduces between 8 and 26 weeks from onset of lithium therapy.
    Fig. 3. Evolution of total Cho level in patients and healthy controls during 4 visits over 26 weeks.
    Fig. 1. Placement of 20×20×30 mm3 voxel at left dorsal/rostral ACC.
  • Disrupted Small-World Networks in Major Depressed Patients with Suicidality
    Huiru Li1, Huawei Zhang1, Li Yin2, Zhiyun Jia3, and Qiyong Gong1
    1Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China, 2Department of Psychiatry, West China Hospital of Sichuan University, Chengdu, China, 3Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, China
    Brain of patients with depression and suicidality showed a weaker integration (decreased segregation and weaker integration) and altered nodal efficiency in fronto-striatal-limbic-thalamic circuit compared to healthy controls.
    Group differences in global topological properties among healthy control subjects and patients with major depressive disorder either with or without a history of suicidality.
    Regions with significant alterations in nodal efficiency among three groups (A) and associations between clinical measures and network properties (B).
  • Circadian rhythm functional network in the central nervous system and its disruptions in chronic insomnia disorder
    Ran Pang1,2, Jianli Wang3, Karunanayaka Prasanna3, Kuncheng Li4, and Qingxian Yang2
    1Department of Radiology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China, 2Department of Neurosurgery, Pennsylvania State University College of Medicine, Hershey, PA, United States, 3Department of Radiology, Pennsylvania State University College of Medicine, Hershey, PA, United States, 4Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China
    The circadian rhythm functional network (CRFN) elucidated, consisting of a positive and a negative FCs in the cerebrum and cerebellum. Chronic insomnia patients exhibited an extensive weakening of FCs and an augmented local functional activity that correlated with clinical symptoms.
    Fig. 1. A. ROI for SCN in bilateral anterior hypothalamus. B. Negative FC with SCN in the HC subjects. C. Positive FC with SCN in the HCs (p < 0.005, extent threshold = 5 voxels). The brain structures labeled 1 to 15 are listed in Table 2.
    Table 2. Regions with negative (blue) and positive (red) functional connectivity with the SCN in HCs (voxel ≥ 5, p < 0.005). Note: 2-sample t-test were used for the FCs’ comparisons between HC group and CID group, *significant difference between two groups (p<0.05).
  • 7T Mental health: Functional alterations in resting-state within the executive control network and its association with BDI-II and TMT-B in MDD
    Ravichandran Rajkumar1,2,3, Gereon Johannes Schnellbächer2, Hasan Sbaihat1,2, N. Jon Shah1,4,5,6, Tanja Veselinović2, and Irene Neuner1,2,4
    1Institute of Neuroscience and Medicine - 4 (Medical Imaging Physics), Forschungszentrum Juelich GmbH, Jülich, Germany, 2Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany, 34JARA – BRAIN – Translational Medicine, Aachen, Germany, 4JARA – BRAIN – Translational Medicine, Aachen, Germany, 5Department of Neurology, RWTH Aachen University, Aachen, Germany, 6Institute of Neuroscience and Medicine, INM-11, Forschungszentrum Jülich GmbH, Jülich, Germany
    This 7T fMRI pilot study suggests that changes in functional parameters within the ECN may be due to executive function impairments in depressed patients
    Fig. 2: Bar chart with the standard deviation for each RS-fMRI measure within the right executive control network (RECN, right side) and the left executive control network (LECN, left side) between a healthy subject and a depressed patient. Right and left view of the masks of the RECN and LECN used in the analysis are shown above the corresponding bar chart.
    Fig. 1: Mean RS-fMRI measures of healthy subjects (right column) and depressed patients (left column). The fMRI measures degree centrality (DC, top row), regional homogeneity (ReHo, second row), amplitude of low frequency fluctuations (ALFF, third row) and fractional ALFF (bottom row) are shown in right, and left views.
  • Different patterns of temporal variability of functional connectivity to predict response to electroconvulsive therapy in schizophrenia
    Yunyun Jiao1, Jie Gong1, Hui Deng1, Dongchen Sun1, and Wei Qin1
    1Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
    Temporal variability of resting state functional connectivity may serve as a promising indicator to predict the response to ECT in patients with SZ.
    Figure 1.Flow chart of data processing and analysis. A) fMRI data used in this research. B) We extracted time courses from each ROI of the anatomical automatic labeling atlas-90 (AAL-90) mask and calculated the temporal variability of each region. C) Statistical analysis was performed, including grouping comparison of temporal variability of RS, NRS and HC, and Pearson correlation analysis to reveal the relationship between temporal variability and ΔPANSS.
    Figure 2.The relationship between the response to ECT (△PANSS) and the temporal variability in brain regions of discriminant differences in SZ. A) The temporal variability of IFGtriang.R in RS is negatively correlated with the response to ECT. The temporal variability of TPOsup.R B) and MTG.R C) in NRS is positively correlated with the response to ECT.
  • MRI measurements demonstrate gray matter increases induced by transcranial direct current stimulation treatment in depression
    Mayank Jog1, Cole Anderson1, Elizabeth Kim1, Antoni Kubicki1, Michael Boucher1, Gerhard Hellemann2, Roger Woods1, and Katherine Narr1
    1UCLA, Los Angeles, CA, United States, 2University of Alabama, Birmingham, Birmingham, AL, United States
    In this randomized double-blind study, gray-matter increases post-tDCS treatment were observed in the active-stimulation group (compared to placebo) near the stimulation-target, and in a distant but functionally-connected brain region.
    Figure 2: MRI measurements of gray matter changes induced by tDCS: A voxelwise 1-way ANOVA revealed significant (p < 0.05, FDR corrected) differences between the Sham, Active-Conventional and Active-HD groups in the left dorsolateral prefrontal cortex (DLPFC) and the posterior cingulate cortex (PCC). Post-hoc t-tests revealed significant (p<0.05) gray matter increases with the active-HD montage (relative to Sham) in both regions, but only in the left DLPFC with the active-conventional montage.
    Figure 1: Study design: Fifty-nine moderately depressed participants were randomized into Active/Sham X HD/Conventional groups using a double-blind, parallel design (n=20/19/20 in Active-HD/Active-Conventional/Sham groups respectively). Each participant received tDCS treatment from the High definition (HD) or Conventional montages, according to the allocation. Treatments were administered using a double-blind device (for details about tDCS treatments, see abstract text).
  • Alternations of functional networks in adult PTSD: a systematic review and meta-analysis of resting-state functional connectivity studies
    WeiJie Bao1, YingXue Gao1, Hailong Li1, jing Liu1, Lingxiao Cao1, Xuan Bu1, and Xiaoqi Huang1
    1Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
    Our findings suggested that the long-lasting effect of trauma on the function of the default mode network (DMN) and limbic network (LN) regardless of whether it caused symptoms of PTSD.
    Figure 3. Brain networks dysfunction patterns of posttraumatic stress disorder. DMN, default mode network; VAN, ventral attention network; DAN, dorsal attention network; SMN, somatomotor network; LN, limbic network; FPN, frontoparietal network
    Figure 2. The results of the meta-analysis of altered resting-state functional connectivity with the default mode network (DMN) and limbic network in the PTSD group compared with the groups of trauma-exposed controls (TEC) or nonexposed controls (NEC).
  • Effect of the outbreak of COVID-19 on college students with subthreshold depression:a resting-state functional MRI study
    zhang zhang qi1, pan chen2, ZHEN YE LUO3, Long QIAN4, and YING WANG2
    1JINAN UNIVERCITY, guang zhou, China, 2Jinan Univercity, guang zhou, China, 3lzy1735411016@163.com, guang zhou, China, 4MR Research, GE Healthcare, Beijing, China., BEI JING, China
     Background:
    ReHo difference brain map of three groups
    Correlation between different brain regions and IES-R return scores(IES-R:Impact of Event Scale-Revised )
  • Brain volumetric measurements in children with ADHD:a comparative study between synthetic and conventional MRI
    Yingqian Chen1, Shu Su1, Yan Dai1, Long Qian2, and Zhiyun Yang1
    1First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China, 2GE Healthcare, Beijing, China
    Children with attention deficit hyperactivity disorder show global brain development retardation but normal whole brain myelination.
    The comparison of the brain tissue and myelin volume between ADHD group and control group with the measurements acquired by SyMRI (*: p<0.05).
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Digital Poster Session - More Psych, Metabolic, Infectious & Rare Diseases
Neuro
Monday, 17 May 2021 19:00 - 20:00
  • Gray Matter Based Spatial Statistics Shows Cortical Alterations in Individuals With Autism Spectrum Disorder
    Marissa DiPiero1,2, Janet Lainhart2,3, Brittany Travers2,4, Andrew Alexander 2,3,5, and Doug Dean2,6
    1Neuroscience Training Program, University of Wisconsin - Madison, Madison, WI, United States, 2Waisman Center, University of Wisconsin - Madison, Madison, WI, United States, 3Department of Psychiatry, University of Wisconsin - Madison, Madison, WI, United States, 4Department of Kinesiology, University of Wisconsin - Madison, Madison, WI, United States, 5Department of Medical Physics, University of Wisconsin - Madison, Madison, WI, United States, 6Department of Pediatrics, University of Wisconsin - Madison, Madison, WI, United States
    Main findings demonstrate the sensitivity of NODDI-GBSS to characterize age-related cortical gray matter differences in people with autism spectrum disorder. Such advancements will contribute to our understanding of brain dysfunction related to ASD.
    Figure 2: NODDI and DTI group differences. Color bar indicates level of significance of voxels from group difference model. A. Significant voxels and neuroanatomical location of FICVF group differences. B. Significant voxels and neuroanatomical location of MD group differences. C. Significant voxels and neuroanatomical location of RD group differences. D. Significant voxels and neuroanatomical location of AD group differences.
    Figure 4: DTI age by group interactions. Significant voxels displayed on the neuroanatomical maps, color bar indicates level of significance (B, D, F, H). A. Scatter plot representing mean FA values of significant voxels of age-by-group interaction. C. Scatter plot representing MD values of significant voxels of age-by-group interaction. E. Scatter plot representing mean RD values of significant voxels of age-by-group interaction. G. Scatter plot representing mean AD values of significant voxels of age-by-group interaction.
  • Power spectral density of salience network alterations in obsessive-compulsive disorder: Impact on thought-action fusion performance
    Eunji Kim1, Sang Won Lee2, Hyunsil Cha1, Heajung Choi1, Seungho Kim1, Yunheung Kim3, Seung Jae Lee2, and Yongmin Chang4
    1Medical & Biological Engineering, Kyungpook National University, Daegu, Korea, Republic of, 2Psychiatry, Kyungpook National University Hospital, Daegu, Korea, Republic of, 3Kyungpook National University, Daegu, Korea, Republic of, 4Radiology and Molecular Medicine, Kyungpook National University, Daegu, Korea, Republic of
    OCD demonstrated the alterations of PSD which reflects neural activity in TAF task and resting-state. These PSDs are correlated to psychological measures. Therefore, alterations of PSD in SN during TAF task seem to be associated with OCD symptoms.  
    Power spectra under TAF task and resting state of OCD (red) and HC (black). During resting state, intrinsic neural activity power within DMN had significant difference at Bin1 and Bin2. Salience network showed significant difference at Bin1 and Bin3 during TAF task. (Bin1: 0-0.05 Hz, Bin2: 0.05-0.1 Hz, Bin3: 0.1-0.15 Hz, Bin4: 0.15-0.2 Hz, Bin5: 0.2-0.25Hz)
    Independent components of each group under the TAF task. Spatial maps were thresholded at p < 0.05 using one sample t-test, corrected for family wise error (FWE). (a) Default Mode Network (DMN), (b) Central Executive Network (CEN), and (c) Salience Network (SN).
  • Evaluation of White Matter Integrity via Fixel-Based Analysis in HIV Infection
    Alan Finkelstein1, Md Nasir Uddin2, Miriam Weber2, Jianhui Zhong1,3,4, and Giovanni Schifitto2,3
    1Biomedical Engineering, University of Rochester, Rochester, NY, United States, 2Neurology, University of Rochester, Rochester, NY, United States, 3Imaging Sciences, University of Rochester, Rochester, NY, United States, 4Physics and Astronomy, University of Rochester, Rochester, NY, United States
    Chronic neuroinflammation in the setting of HIV infection leads to atrophy and demyelination, resulting in neurocognitive impairment. Fixel-based analysis was used to evaluate matter integrity in HIV+ individuals and their relationship with cognitive function.
    Figure 2. Significant differences in fixel-based metrics between HIV-infected and HIV-uninfected individuals. (top) Fiber Density (FD), (middle) Fiber bundle Cross-section (FC), and (bottom) Fiber density and cross-section (FDC). Significant fixels (family-wise error corrected p < 0.05) were mapped to streamlines and thresholded at p < 0.05.
    Figure 4. Scatterplots showing FDC as a function of Overall Z-score (A), and as a function of Executive z-score (B). Only regions with significant correlations are shown. Solid lines are linear fits and shaded areas are for 95% confidence interval. FDC: Fiber density and cross-section, IC: internal capsule.
  • Assessment of brain structural connectome alterations in depressive patients with suicidal attempt using GQI
    Chun-Ju Kao1, Vincent Chin-Hung Chen2,3, Yuan-Hsiung Tsai3,4, and Jun-Cheng Weng1,2,5
    1Department of Medical Imaging and Radiological Sciences, and Bachelor Program in Artificial Intelligence, Chang Gung University, Taoyuan, Taiwan, 2Department of Psychiatry, Chang Gung Memorial Hospital, Chiayi, Taiwan, 3School of Medicine, Chang Gung University, Taoyuan, Taiwan, 4Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Chiayi, Taiwan, 5Medical Imaging Research Center, Institute for Radiological Research, Chang Gung University and Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
    SA group showed lower global integration and higher local segregation compared to D and HC groups. Furthermore, SA and D groups had significant subnetwork connections in frontal and parietal lobes than HC group.
    Figure 3. NBS results. (a) Compared with the HC group, the SA group demonstrated significantly stronger subnetwork connections in the frontal and parietal lobe. (b) Compared with the HC group, the D group demonstrated significantly stronger subnetwork connections in the parietal lobe (p < 0.05).
    Figure 2. Topological parameters of graph theoretical analysis. Topological parameters including (a) global efficiency, (b) normalized shortest path length (λ), (c) characteristic path length, (d) normalized clustering coefficient (γ), (e) modularity and (f) small-worldness index among three groups (SA, D and HC).
  • Longitudinal assessment of lesion volume and ADC in patients with Fabry disease: a 5 year follow up study
    Koen P.A. Baas1, Simon Körver2, Bram F. Coolen3, Gustav J. Strijkers3, Carla E.M. Hollak2, and Aart J. Nederveen1
    1Radiology and Nuclear Medicine, Amsterdam UMC, Amsterdam, Netherlands, 2Endocrinology and Metabolism, Amsterdam UMC, Amsterdam, Netherlands, 3Biomedical Engineering and Physics, Amsterdam UMC, Amsterdam, Netherlands
    ADC values in Fabry patients were significantly higher within white matter lesions compared to healthy white matter, and increased further with lesion age. Moreover, before lesions were detected on FLAIR images, we already found abnormal ADC values in these specific regions. 
    Figure 1: lesion progression in three patients projected on WM segmentations (left) and corresponding slices of ADC maps (right). Colors indicate the age of the lesion. Only four time points were available for patient one and does therefore not show lesion age of five years. Patient two and three had five available time points.
    Figure 2: averaged ADC values within newly detected WML as a function of lesion age. WMLs that were present at the first time point were not included because the age of these lesions cannot be determined. Error bars denote standard deviations. Linear regression of all individual newly detected lesion areas after each year showed a significant correlation between lesion age and ADC.
  • Free-Water Eliminated DTI Measures of Neuro-inflammation and White Matter Structural Deterioration in HIV-1 Clade C Infection
    Teddy Salan1, Deepika Aggrawal2, Gaurav Garg2, Manju Mohanty2, Paramjeet Singh2, Mahendra Kumar1, Sameer Vyas2, and Varan Govind1
    1University of Miami, Miami, FL, United States, 2Post Graduate Institute of Medical Education & Research, Chandigarh, India
    We use free-water eliminated DTI (FWE-DTI) to determine the extent of micro-structural brain damage in drug-naïve HIV-1 clade C subjects. Our results show white matter structural abnormalities and inflammation manifested by increases in free water and reduced FWE fractional anisotropy.
    Axial slice from an HIV-1C positive subject illustrating the different parametric maps obtained with obtained with FWE-DTI: free-water volume fraction (fFW), fractional anisotropy (FWE-FA), mean diffusivity (FWE-MD), axial diffusivity (FWE-AD), and radial diffusivity (FWE-RD). A b0 image is included for anatomical reference.
    Free-water volume fraction (fFW) measured at 20 gray matter ROIs for the HIV-1C and control groups.
  • Mapping Increased Cerebral Free Water Volume Fraction in Hepatic Encephalopathy
    Teddy Salan1, Varan Govind1, and Sameer Vyas2
    1University of Miami, Miami, FL, United States, 2Post Graduate Institute of Medical Education & Research, Chandigarh, India
    We applied free-water eliminated diffusion tensor imaging (FWE-DTI) to calculate the free-water volume content fraction (fFW) in the brains of HE and healthy control subjects. We found significant fFW increases among HE patients indicating low-grade edema and glial swelling.
    Axial slices from the brain of an HE subject showing b0 images (top row) and the corresponding the fFW maps (bottom row).
    Voxelwise z-score maps comparing fFW values from the brain of an HE subjects with the mean values of the control group. The z-scores are overlaid on a template T1 image in MNI space.
  • Preliminary results of longitudinal brain volume analyses in adolescents with Duchenne muscular dystrophy
    Mariken C.R. Hoegen1,2, Nathalie Doorenweerd1,2,3, Emma M. Broek1, Kieren G. Hollingsworth4, Chiara Marini Bettolo5, Jos G.M. Hendriksen 6,7, Erik H. Niks2,8, Volker Straub3, and Hermien E. Kan1,2
    1Department of Radiology, Leiden University Medical Center, Leiden, Netherlands, 2Duchenne Center Netherlands, Leiden, Netherlands, 3John Walton Muscular Dystrophy Research Centre, Newcastle upon Tyne, United Kingdom, 4Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom, 5Faculty of Medical Sciences, John Walton Muscular Dystrophy Research Centre, Newcastle upon Tyne, United Kingdom, 6Expertise Center Kempenhaeghe, Heeze, Netherlands, 7Duchenne Center Netherlands, Heeze, Netherlands, 8Department of Neurology, Leiden University Medical Center, Leiden, Netherlands
    Our preliminary results show no changes in brain volume over time between groups. We found a consistently lower total grey matter volume and no differences in white matter volume in DMD. Our data suggest that the differences in brain volume in DMD are non-progressive up to ± 20 years of age. 
    Figure 1. Axial slices of an individual participant with DMD and a healthy control. The first row (A-C) show T1-weighted images of a HC at baseline (A), follow-up (B) and the corresponding image of changes at the brain edges superimposed on a interpolated halfway point between baseline and follow-up MR images (edge-motion image). (C) The bottom row shows T1-weighted images of a participant with DMD, with baseline (D), follow-up (E) and edge-motion image. The brain edge movement image shows local reductions (in blue-green) and increases (red-yellow).
    Figure 2. Left top to bottom: results of the paired t-test between baseline (Time1) and follow-up (Time2) within groups; DMD in blue, HC in black. Intracranial volume (ICV), total brain volume (TBV), grey matter volume (GMV), white matter volume (WMV) and cerebrospinal fluid volume (CSF) with average increase or average decrease over time. Results were considered significant at Bonferroni corrected p≤0.005. Right top to bottom: results of the longitudinal mixed model analysis between groups corrected for age. DMD in blue, HC in black.
  • Cerebral iron deposition in gray nucleus in type 2 diabetes mellitus patients and the correlation with metabolic disorders
    Yangyingqiu Liu1, Na Liu1, Yanwei Miao1, Ailian Liu1, Jiazheng Wang2, and Yishi Wang2
    1Department of Radiology, First Affiliated Hospital of Dalian Medical University, Dalian, China, 2Philips Healthcare, Beijing, China
    Iron deposition of the gray nucleus is quantitatively assessed by magnetic sensitivity value (MSV)using quantitative susceptibility mapping (QSM), and its’ correlation to metabolic disorders index is also analyzed in patients with type 2 diabetes mellitus (T2DM).
    Fig.1 ROI selection of gray nucleus. (A)The HCN、PUT、GP、THA are shown front and back. (B)Showing the RN and SN. (C) Showing the DN. (D) Showing the GF.
    Fig.2 Comparison of gray nucleus MSV between T2DM and CON group. ★P < 0.05.
  • Examining the association between sluggish cognitive tempo and functional connectivity in children with ADHD: A pilot study
    Adebayo B Braimah1, Jonathan A Dudley1, Jeffery Epstein2, Leanne Tamm2, and Stephen P Becker2
    1Imaging Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States, 2Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
    Sluggish cognitive tempo symptoms were associated with lower connectivity between the attention seed and medial visual areas. This preliminary study is one of the first to indicate that SCT symptoms may be associated with specific connectivity patterns independent of ADHD symptom severity.
    Figure 3: Child-rated SCT symptoms (controlling for age, sex, and parent-rated ADHD inattention symptoms) shows decreased functional connectivity between the attention seed region and the: left cuneus cortex, left isthmus – cingulate cortex, left lingual gyrus, left pericalcarine cortex, left precuneus cortex, right cuneus cortex, right isthmus – cingulate cortex, right lingual gyrus, right parahippocampal gyrus, right pericalcarine cortex, right precuneus cortex.
    Figure 2: Teacher-rated SCT (controlling for age, sex, and teacher-rated ADHD inattention symptoms) shows increased functional connectivity between the attention seed region and the: right cuneus cortex, right lateral occipital cortex, fight pericalcarine cortex, right superior parietal cortex, and decreased functional connectivity between the: left cuneus cortex, left isthmus – cingulate cortex, left lingual gyrus, left pericalcarine cortex, Left precuneus cortex.
  • Fibre-specific white matter changes in neonates born to women prescribed methadone in pregnancy
    Manuel Blesa Cábez1, Thijs Dhollander2, Victoria J Monnelly1, Alan J Quigley3, Scott I Semple4, Mark E Bastin4, and James P Boardman1
    1MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom, 2Developmental Imaging, Murdoch Children's Research Institute, Melbourne, Australia, 3Department of Radiology, Royal Hospital for Sick Children, Edinburgh, United Kingdom, 4Edinburgh Imaging, University of Edinburgh, Edinburgh, United Kingdom

    Prenatal exposure to methadone is associated with microstructural alterations in major white matter tracts, assessed by a reduction in fiber-bundle cross-section and fiber density and cross-section apparent soon after birth.

    Figure 1: The top panels show the areas where the prenatal methadone exposed group has lower FC and the bottom panels show and the areas where they have lower FDC values. All the results are overlaid to the WM FOD template for reference. Axial and coronal views follow radiological convention.
    Table 1: Infant characteristics.
  • Correlations between microstructural changes of anterior cingulum cortex and cerebral small vascular disease induced depression : A DKI Study
    Zhenyu Pan1, Kun li1, Dongtao Liu2, Xiuqin Jia1, Qiao Bu1, Rui Jia1, Tao Jiang1, Yueluan Jiang3, Qinglei Shi3, and Lichun Zhou2
    1Department of Radiology, Beijing Chao-Yang Hospital, Beijing, China, 2Department of Neurology, Beijing Chao-Yang Hospital, Beijing, China, 3MR Scientific Marketing, Diagnosis Imaging, Siemens Healthineers China, Beijing, China
    The study aimed to find the correlation between microstructural changes of ACC and CSVD-induced depression patients by DKI. The results showed DKI parameters of ACC are potentially useful for the quantitative evaluation the degree of CSVD-induced depression.

    Figure 2. Images of CVSD-D patient (A-1, T1WI 3D MPRAGE, A-2, DKI-Dmean map) and CVSD-ND patient (B-1, T1WI 3D MPRAGE, B-2, DKI-Dmean map). Compared with non-depression CVDS patient, the Dmean map of CVSD-D patient have more warm pixels in region of ACC. White arrow indicate left ACC.

    Table 1. A comparison of DKI derived parameters in ACC between two groups.

    Note: Values are presented as mean ± SD or median (interquartile range). Abbreviations: Dmean, mean diffusivity; KFA, kurtosis fractional anisotropy; Kmean, mean kurtosis.

  • Application of quantitative susceptibility mapping of brain iron content in children with autism
    Shilong Tang1 and Lisha Nie2
    1Children's Hospital of Chongqing Medical University, Chongqing, China, 2GE Healthcare, MR Research China, Beijing, Beijing, China

    The results of this study indicate that the brain magnetic susceptibility values of preschool children with autism is lower than that of normal preschool children.

     

    Fig. 1 Bar chart comparing brain iron content measurement results across children in the same age group
    Fig. 2 Bar chart comparing brain iron content measurement results across children in the same age and sex group
  • Preliminary Assessment of Intravoxel Incoherent Motion Diffusion-Weighted MRI Metrics in Acute Carbon Monoxide Poisoning
    Shenghai Wang1, Juan Chen1, Kechao Xu1, Xiyao Zhang1, Haining Li2, and Zhengxian Zhang1
    1Yan 'an People's Hospital, Yan 'an, China, 2First Affiliated Hospital of Xi 'an Jiaotong University, Xi 'an, China
    The purpuse of this study was to assess microvascular perfusion and microstructural integrity using Intravoxel incoherent motion (IVIM) imaging in acute CO poisoning. This study shows that IVIM-DWI may be a promising method to assess brain perfusion and injury in acute CO poisoning.
    Table 1 demographic characteristics of the cohorts
    Table 2 Difference of IVIM Parameters between the patients with acute CO poisoning and healthy controls
  • A radiomics method to identify non-neuropsychiatric systemic lupus erythematosus with grey matter volume
    Xiangliang Tan1, Kan Deng2, Yingjie Mei2, Tianjing Zhang2, Yang Song3, Qiaoli Yao1, and Yikai Xu1
    1Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, China, 2Philips Healthcare, Guangzhou, China, 3Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, China
    Our study suggests that the grey matter volume parameter is an effective classification feature for the radiomics models to identify non-NPSLE patients from HC subjects. 
    Figure 2(A) ROC curves of the non-NPSLE classification on different classifiers (B) Histograms of AUC on different classifiers. SVM, support vector machine, LDA, linear discriminant analysis, LR, logistic regression.
    Figure 1. Brain structures with grey matter volume decreased in non-NPSLE compared to healthy controls
  • Demyelination is related to deep gray matter iron deposition in CADASIL patients
    hui hong1, shuyue wang1, xinfeng Yu2, Yererfan Jiaerken2, Xiaojun Guan2, and minming zhang2
    1radiology, Zhejiang University, hangzhou, China, 2radiology, the second affiliated hospital of zhejiang university, school of medicine, hangzhou, China
    Demyelination of white matter is associated with deep gray matter iron deposition in CADASIL patients.
    Comparison of iron deposition between patients with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) and healthy controls. Increased iron deposition of caudate, putamen, and pallium in patients with CADASIL compared with healthy controls. ns indicates nonsignificant. *A significant correlation (P<0.05).
    Correlations between white matter microstructure and putamen iron deposition. FA: fractional anisotropy; MD: mean diffusivity; RD: radial diffusivity
  • Altered global functional network connectivity and its relationship to cognitive dysfunction in rheumatoid arthritis
    Zeyu Liu1, Bo Hou1, and Feng Feng1
    1Peking Union Medical College Hospital, Beijing, China
    This study demonstrated the altered FCS in RA patients using rs-fMRI. The decreased FCS was correlated to worsening performance in MMSE and MoCA. The increased FCS of the left inferior parietal lobule/supramarginal gyrus in RA may partially compensate for cognitive dysfunction in RA.
    The images show the mean FCS in RA (A), HC (B) and the difference between RA and HC (C). The color bar at the bottom of each picture represents the FCS value for each group.
    The correlation between FCS and neuropsychological scores (A, MMSE; B, MoCA) in RA patients. The color bar represents the ! value.
  • Limbic System Lateralization of Amide Proton Transfer Weighted Signals in Young Healthy Subjects
    Yuhan Jiang1, Weiwei Wang1, Peipei Chang1, Yingqiu Liuyang1, Bingbing Gao1, Yiwei Che1, Renwang Pu1, Qingwei Song1, Ailian Liu1, Zhiwei Shen2, Jiazheng Wang2, and Yanwei Miao1
    1the First Affiliated Hospital of Dalian Medical University, Dalian, China, 2Philips Healthcare, Beijing, China
    In this study, we investigated the APTw signals in the limbic system in healthy young volunteers and found that significant higher APTw signals in the right side than those in the left side, especially in the insula, post cingulum, para hippocampus, amygdala and olfactory regions.
    Fig 1. Comparison of APTw values of left and right hemispheres in different regions of limbic system.
    Table 2. Normal APTw signals in limbic system
  • Diffusion Tensor Imaging in Cubital Tunnel Syndrome
    Ryckie George Wade1, Timothy T Griffiths1, Robert Flather1, Irvin Teh1, Hamied A Haroon2, David Shelley3, Sven Plein1, and Grainne Bourke3
    1University of Leeds, Leeds, United Kingdom, 2University of Manchester, Manchester, United Kingdom, 3Leeds Teaching Hospitals, Leeds, United Kingdom
    This proof-of-concept study shows that, throughout the length of the ulnar nerve, fractional anisotropy and radial diffusivity are significantly different between asymptomatic adults and adults with cubital tunnel syndrome.
    Figure 1. Data derived from a healthy control. The rows show data from the arm, cubital tunnel and forearm. The columns contain T2-weighted scans, and corresponding maps of normalised quantitative anisotropy (nQA), mean diffusivity (MD) and the principal eigenvector (V1) with the colours red, green and blue representing diffusion in x, y and z directions, and the intensity scaled by QA.
    Figure 2. Scatter plot with linear fit (and 95% CI) showing the relationship between Fractional Anisotropy of the ulnar nerve in volunteers and patients, at different positions within the upper limb.
  • Resting-state functional connectivity and brain network abnormalities in depressive patients with suicidal ideation
    Jun-Cheng Weng1,2,3, Yu-Syuan Chou4, Yuan-Hsiung Tsai5,6, and Vincent Chin-Hung Chen3,5
    1Department of Medical Imaging and Radiological Sciences, and Bachelor Program in Artificial Intelligence, Chang Gung University, Taoyuan, Taiwan, 2Medical Imaging Research Center, Institute for Radiological Research, Chang Gung University and Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan, 3Department of Psychiatry, Chang Gung Memorial Hospital, Chiayi, Taiwan, 4Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan, 5School of Medicine, Chang Gung University, Taoyuan, Taiwan, 6Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Chiayi, Taiwan
    Our results showed that lower activity in the thalamus and cuneus regions were related to suicidal ideation. The different topological organization and slightly worse local segregation of the brain network in suicidal ideation patients.
    Figure 3. The NBS analysis results. A disrupted subnetwork was found in the SI group compared with the NS group (NS > SI).
    Figure 1. (a) Two-sample t-test results of mfALFF between the SI and the NS groups (NS > SI, color bar represents t-score). (b) Lower mfALFF of the left cuneus and (c) higher mfALFF of the right middle temporal pole gyrus were found in the SI group compared with the NS group. (d) Two-sample t-test results of mReHo between the SI and the NS groups (NS > SI; color bar represents t-score). (e) Lower mReHo of the right cuneus and (f) higher mReHo of the left middle temporal gyrus (MTG) were found in the SI group compared with the NS group.