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Abstract #2062

Late gadolinium enhancement imaging at low field using through-time spiral GRAPPA

Dominique Franson1, Rajiv Ramasawmy2, Nicole Seiberlich1,3, and Adrienne Campbell-Washburn2
1Case Western Reserve University, Cleveland, OH, United States, 2National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States, 3University of Michigan, Ann Arbor, MI, United States

A free-breathing late gadolinium enhancement scan may be beneficial for patients who have difficulty with breath-holds. However, the fast data acquisition needed may be difficult to achieve at low field strengths. Here, an undersampled spiral (R=3) acquisition with a through-time spiral GRAPPA reconstruction is used to achieve high spatial (1.25 x 1.25 mm2) and temporal (139 ms acquisition window) resolution for LGE imaging at 0.55T. The resulting images have qualitatively good contrast-to-noise between lesions and healthy myocardium, with acceptable SNR and without motion blurring.

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