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Abstract #2092

The importance of myocardial SNR in myocardial blood flow quantification derived from first-pass cardiac perfusion CMR

Sungtak Hong1, Kyungpyo Hong2, Li-Yueh Hsu3, Daniel C Lee4, and Daniel Kim1
1Radiology, Northwestern University, Chicago, IL, United States, 2Translational and Molecular Imaging Institute and Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States, 3National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States, 4Division of Cardiology, Internal Medicine, Northwestern University, Chicago, IL, United States

We have recently developed a perfusion CMR pulse sequence using golden angle radial acquisitions and CS reconstruction. The radial k-space sampling allows retrospective manipulation of saturation-recovery time (TS) using k-space weighted image contrast (KWIC) filtering. This study was conducted to determine the importance of SNR in myocardial blood flow quantification derived from cardiac perfusion CMR. Our analysis shows that mean resting MBF values decreases with TS, where the result with the highest TS = 95 ms agrees best with literature value reported by cardiac PET studies.

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