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Abstract #0552

Ungated myocardial perfusion imaging with complete left ventricular coverage using radial simultaneous multi-slice imaging

Ganesh Adluru1, Jason Mendes1, Ye Tian1, Brent Wilson2, and Edward DiBella1

1Radiology and Imaging Sciences, University of Utah, Salt lake city, UT, United States, 2Cardiology, University of Utah, Salt lake city, UT, United States

Myocardial perfusion imaging is a promising tool to determine the downstream effects of blocked coronary arteries. Ungated perfusion imaging is a promising alternative to conventional ECG-gated acquisitions. Existing ungated methods can acquire only 4-5 short-axis slices often with large slice gaps. Continuous and complete coverage is desired in order to avoid missed regions of perfusion deficit. Here we use an undersampled radial simultaneous multi-slice (SMS) acquisition to obtain complete coverage of the left ventricle. We use a block matching constrained reconstruction that is robust to inter-time frame cardiac and respiratory motion. We obtain 12 short axis slices in ~250 msec.

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