Xianglun Mao1, Hsu-Lei Lee1, Sen Ma1, Zhehao Hu1,2, Fei Han3, Yibin Xie1, Debiao Li1,2, and Anthony G Christodoulou1,2
1Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, 2Department of Bioengineering, University of California in Los Angeles, Los Angeles, CA, United States, 3Siemens Medical Solutions Inc., Los Angeles, CA, United States
1Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, 2Department of Bioengineering, University of California in Los Angeles, Los Angeles, CA, United States, 3Siemens Medical Solutions Inc., Los Angeles, CA, United States
We combined 2D MR Multitasking framework with simultaneous multi-slice (SMS) acquisition to perform T1/T2 mapping of basal, mid, and apical short-axis slices in 3 min. Multitasking resolves the cardiac and respiratory motions, allowing for free-breathing acquisition without need for ECG.
Fig.2: Cardiac and respiratory motion-resolved T1 images of one subject (F,27) of proposed 2D SMS Multitasking protocol in base, mid, apex slices (1.7x1.7x8.0 mm3 resolution, TA=3min). Comparative ECG-gated, breath-held MOLLI T1 maps (base, mid, apex, 1.4x1.4x8.0 mm3 resolution, TA=11s) in short-axis orientation.
Fig.3: Cardiac and respiratory motion-resolved T2 images of one subject (F,27) of proposed 2D SMS Multitasking protocol in base, mid, apex slices (1.7x1.7x8.0 mm3 resolution, TA=3min). Comparative ECG-gated, breath-held T2-prep FLASH T2 maps (base, mid, apex, 1.4x1.4x8.0 mm3 resolution, TA=11s) in short-axis orientation.
