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Abstract #4004

Ungated and free-breathing radial simultaneous multi-slice cardiac T1 mapping

Johnathan Le1,2, Jason Mendes2, Konstantinos Sideris3, Josef Stehlik3, Brent Wilson3, Edward DiBella1,2, and Ganesh Adluru1,2
1Biomedical Engineering, University of Utah, Salt Lake City, UT, United States, 2Utah Center for Advanced Imaging Research, University of Utah, Salt Lake City, UT, United States, 3Cardiology, University of Utah, Salt Lake City, UT, United States

Synopsis

Keywords: Myocardium, RelaxometryCardiac T1 mapping has been shown to be a promising method for assessing different cardiomyopathies. Most cardiac T1 mapping methods require ECG gating with long breath holds to capture specific desired cardiac phases and to minimize breathing motion. However, certain cardiomyopathies can make it difficult for patients to maintain a breath hold for the duration of a cardiac T1 mapping sequence. Furthermore, some of these diseases, for example atrial fibrillation with changing R-R intervals can make capturing a specific cardiac phase difficult. Here we propose a radial simultaneous multi-slice (SMS) cardiac T1 mapping sequence without ECG gating or breath holding.

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Keywords