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Abstract #0606

3D Multitasking for Non-ECG, Free-Breathing, Simultaneous Cardiac Motion-Resolved T1 Mapping and Function Evaluation

Jaime L. Shaw1,2, Xiaoming Bi3, Debiao Li1,4, and Anthony G. Christodoulou1

1Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, 2Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, 3Siemens Healthineers, Los Angeles, CA, United States, 4Department of Bioengineering, UCLA, Los Angeles, CA, United States

Myocardial T1 mapping characterizes focal and diffuse fibrosis. We have recently shown cardiac motion-resolved 2D T1 maps with free breathing and without ECG, greatly simplifying workflow. In this study, we extend this approach to 3D and redesign the acquisition to improve spatial resolution and sampling efficiency compared to 2D. We also show the feasibility of assessing function from the same cardiac-resolved 3D Multitasking scan used for T1 mapping. T1 maps were compared to 2D MOLLI and function was compared to a breath-hold cine sequence.

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