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Abstract #2412

Accelerated Delayed Enhancement Imaging with Through-Time Radial GRAPPA

Ozan Sayin 1 , Haris Saybasili 2 , Henry Halperin 3 , M. Muz Zviman 3 , Mark Griswold 4 , Nicole Seiberlich 5 , and Daniel A. Herzka 1

1 Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, United States, 2 Siemens Healthcare USA, Inc., Chicago, IL, United States, 3 Department of Radiology, Johns Hopkins Hospital, Baltimore, MD, United States, 4 Department of Radiology, Case Western Reserve University, Cleveland, OH, United States, 5 Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States

Delayed contrast enhancement (DCE) imaging is a well-estabished MRI technique for the evaluation of myocardial tissue. Segmented k-space imaging, over multiple heartbeats, is preferred, as usually, a short quiescent phase in the cardiac cycle needs to be captured. Recently, DCE imaging has been carried out with cartesian single-shot sequences, enabling DCE imaging in single heartbeat. However, the quality of imaging that can replace the segmented k-space techniques have not yet been delivered, and thus, faster imaging which can also maintain image quality is of interest. In this work, we demonstrate the feasibility of DCE imaging with a highly-accelerated radial sequence.

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