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Abstract #3963

Free-breathing myocardial T2* mapping using single-shot GRE-EPI and automatic non-rigid motion correction

Ning Jin 1 , Marie-Pierre Jolly 2 , and Orlando P. Simonetti 3

1 Siemens Healthcare, Columbus, OH, United States, 2 Siemens Corporate Research, Princeton, NJ, United States, 3 The Ohio State University, Columbus, OH, United States

We develop a new free-breathing technique for myocardial T2* mapping using single-shot gradient-echo echo-planar imaging (GRE-EPI) coupled with automatic non-rigid motion correction. We test our method in T2* phantoms and six healthy volunteers. In both phantom and volunteer studies, no significant difference was observed between the T2* measured using our proposed method and the T2* measured using the standard ECG-triggered segmented black-blood multi-echo gradient echo (mGRE) sequence. Our approach provides accurate myocardial T2* measurements during free-breathing and is insensitive to respiratory motion.

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