Abstract #0022

Non-ECG-triggered, free-breathing simultaneous T1, T2, T2*, and fat-fraction quantification in the myocardium with MR Multitasking

Tianle Cao^1,2, Nan Wang³, Alan C. Kwan⁴, Hsu-Lei Lee¹, Xianglun Mao¹, Yibin Xie¹, Pei Han^1,2, Hui Han¹, Anthony G. Christodoulou^1,2, and Debiao Li^1,2

¹Cedars Sinai Medical Center, Los Angeles, CA, United States, ²University of California, Los Angeles, Los Angeles, CA, United States, ³Radiology Department, Stanford University, Stanford, CA, United States, ⁴Department of Imaging and Cardiology, Cedars Sinai Medical Center, Los Angeles, CA, United States

Synopsis

Myocardium tissue characterization with multi-parametric mapping has gained increased clinical interest. Conventional methods require multiple breath-holding, ECG-triggered scans, which may result in potential image misregistration and patient fatigue. In this work, a free-breathing, non-ECG-triggered approach for simultaneous myocardial T1/T2/T2*/FF (fat-fraction) mapping is presented. Quantitative measurements from the proposed technique agreed with those from single-parameter references.

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