Qi Qu¹, Tao Zhang¹, Xue-Qin Zhang¹, Meng-Tian Lu¹, Lei Xu¹, and Xian-Ce Zhao^2
1Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong, Jiangsu, China, Nantong, China, ²Philips Healthcare, Shanghai, China, Shanghai, China

Keywords: Liver, Cancer

To assess the predictive value of preoperative gadoxetic acid (GA)-enhanced magnetic resonance imaging (MRI) features and postoperative histopathological grading for early recurrence of hepatocellular carcinoma (HCC) without microvascular invasion (MVI) after curative hepatectomy. The results of the present demonstrated that our predictive model incorporating postoperative Edmondson-Steiner grade and preoperative imaging features including peritumoral hypointensity on HBP and RIR on HBP (Model-2) represents a promising model to assess the risk of early recurrence after resection of MVI-negative HCC. This predictive model may help clinicians formulate more aggressive and personalised treatment plans way earlier to improve patient prognosis and reduce early recurrence.

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Jiye Kim¹, Hyeong-Geol Shin^2,3, Sooyeon Ji¹, Hwihun Jeong¹, Hongjun An¹, Cheol-Ho Sohn^4,5, Sohyun Han⁶, Huijin Song⁷, Ju-Hee Chae⁸, Seok-Jin Choi⁹, Jung-Joon Sung⁹, and Jongho Lee^1
1Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea, Republic of, ²Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States, ³F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, United States, ⁴Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea, Republic of, ⁵Department of Radiology, Seoul National University Hospital, Seoul, Korea, Republic of, ⁶Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, Korea, Republic of, ⁷Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea, Republic of, ⁸Department of Neurology, College of Medicine, Jeonbuk National University, Jeonju, Korea, Republic of, ⁹Department of Neurology, College of Medicine, Seoul National University, Seoul, Korea, Republic of

Keywords: Susceptibility, Susceptibility

The in-vivo imaging of iron and myelin concentrations of the motor cortex in amyotrophic lateral sclerosis (ALS) patients has significance in advancing knowledge about the degeneration progress of the disease. Here, we explored the feasibility of applying 𝜒-separation to ALS patients in-vivo at 7T. When the susceptibility values in hand knobs are examined, ALS patients have higher positive susceptibility values than healthy controls, confirming the histological finding of iron accumulation in ALS.

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Meiyu Sun¹ and Shuli Cui^1
1Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China

Keywords: Contrast Mechanisms, Uterus, Endometrial Cancer

In our study, Imagingomics texture analysis in DWI and T2WI showed the correlation and inverse gap of glcm, glrlm-RunLengthNonUniformityNormalized and shortRunEmphasis are more effective in identifying stage IA and IB EC . And the diagnostic efficacy  combined parameter analysis were higrer and bettter than the single parameter analysis. 

Yue Zhao¹, Xiuhong Guan², Yongzhou Xu³, Xinqing Jiang², and Ruimeng Yang^2
1Guangzhou First People’s Hospital, Guangzhou, China, ²Department of Radiology, Guangzhou First People’s Hospital, Guangzhou, China, ³Philips Healthcare, Guangzhou, China

Keywords: Urogenital, Pelvis

Zinner's syndrome is a rare congenital urogenital abnormality. Since this disease is rare, knowledge about its imaging manifestations by clinical surgeons and radiologists is inadequate. In this study, data of 11 cases of Zinner's syndrome were retrospectively analyzed, and their morphological characteristics on imaging changes were investigated, aiming to improve the knowledge and differential diagnosis of this disease. The relevant images of Zinner's syndrome show characteristic manifestations, so the seminal vesicle cysts and isolateral kidney development must be carefully observed. Comprehensive judgement should be made according to urogenital mutation or deformity and systemic development situation. 

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Thomas L Chenevert¹, Yuxi Pang¹, Debosmita Biswas², Ramesh Paudyal³, Amaresh Konar³, Jiachao Liang⁴, Lisa J Wilmes⁴, Nastaren Abad⁵, Luca Marinelli⁵, Humera Tariq¹, Ajit Devaraj⁶, Dallas Turley⁷, Johannes M Peeters⁸, Nola M Hylton⁴, David C Newitt⁴, Savannah C Partridge², Amita Shukla-Dave^3,9, and Dariya Malyarenko^1
1Radiology, University of Michigan Health System, Ann Arbor, MI, United States, ²Radiology, University of Washington, Seattle, WA, United States, ³Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, United States, ⁴Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States, ⁵GE Research Center, Niskayuna, NY, United States, ⁶Clinical Science, Philips Healthcare, Highland Heights, OH, United States, ⁷Philips Healthcare, Bothell, WA, United States, ⁸Clinical Science, Philips, Best, Netherlands, ⁹Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, United States

Keywords: Cancer, Diffusion/other diffusion imaging techniques, ADC measurement accuracy, system gradient nonlinearity correction, multi-center oncology imaging trials

Gradient nonlinearity (GNL) induces spatial bias in diffusion b-value that confounds apparent diffusion coefficient (ADC) measurements for anatomy offset from MRI scanner isocenter. For emerging vendor-provided GNL correction (GNC) a standardized quality control (QC) procedure is desired to streamline GNC application for multi-site imaging trials that utilize ADC for tumor monitoring and therapy response assessment. This QC procedure was developed and tested on four MRI scanner systems with vendor-provided on-line ADC GNC for trial-specific phantoms and patient scans for head-and-neck, breast, and myelofibrosis cancers.

Xindong Sun¹ and Haihua Bao^1
1Affiliated Hospital of Qinghai University, Xining, China

Keywords: Vessels, Tumor

This study investigated risk factors for Carotid body tumor(CBT) in plateau areas, compared the incidence of CBT at high altitude group and low altitude group, and investigated the relationship between CBT and ipsilateral carotid plaque.The results showed that the incidence of CBT was higher at high altitude group than at low altitude group, and CBT will increase the incidence of ipsilateral carotid plaque.high resolution magnetic resonance vascular wall imaging(HR-VWI) has more advantages in the diagnosis of carotid body tumor than conventional MR Imaging.

Wei Mao¹, Xiaoqiang Ding¹, Caixia Fu², Yuqin Ding¹, Dominik Nickel³, Mengsu Zeng¹, and Jianjun Zhou^1
1Zhongshan Hospital, Fudan University, Shanghai, China, ²MR Application Development, Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, China, ³MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany

Keywords: Kidney, fMRI, chronic kidney disease;T1 mapping magnetic resonance imaging;renal injury

Accurate assessment of renal injury in chronic kidney disease (CKD) is significant for delaying the progression of CKD to end-stage renal disease. Previous studies have demonstrated the feasibility of Look-Locker T1 mapping in the assessment of renal function in healthy adults, but its application in the assessment of renal injury in CKD is still in the exploratory stage. Therefore, the purpose of this study was to investigate the value of T1 mapping in evaluating renal injury in CKD.

hongbing liang¹, lina zhang¹, ning ning¹, nan zhang², qi wu¹, zhuo wang¹, qingwei song¹, ailian liu¹, and yinghua guo^3
1First Affiliated Hospital of Dalian Medical University, Dalian, CHINA, Dalian, China, ²zhongshan Hospital of Fudan University, Shanghai, CHINA., Shanghai, China, ³Clinical & Technical Support, Philips Healthcare, Beijing, China, Beijing, China

Keywords: Breast, Blood vessels

The occurrence and development of the breast cancer are closely related to the growth and infiltration of blood vessels.This study mainly analyzed the correlation between the maximum diameter of benign and malignant breast tumors, the number of peripheral blood vessels and the first appearance of vascular phase. It is concluded that the number of blood vessels had a certain value in distinguishing benign and malignant breast tumors. There existed a certain correlation between the maximum diameter of malignant tumor and the number of blood vessels.