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Abstract #4444

Simultaneous T1, T2, and T Mapping of the Myocardium with Multi-Parametric SASHA

Kelvin Chow1, Hui Xue2, and Peter Kellman2
1Cardiovascular MR R&D, Siemens Healthineers, Chicago, IL, United States, 2National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States


Parametric T1 and T2 mapping can provide valuable insight into myocardial tissue microstructure. T is a complimentary technique that is sensitive to macromolecular content and may potentially enable non-contrast scar visualization. Characterization with all parameters is desirable as they may have different sensitivities to pathology but is time consuming with separate acquisitions for each. We propose a novel mSASHA sequence with T1, T2, and T maps in a single 13 HB breath-hold or free-breathing acquisition. mSASHA had superior T1 and T2 accuracy and similar precision to conventional MOLLI and T2p-bSSFP in phantoms and data is presented from 3 volunteers.

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