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Abstract #0632

Improved Whole-Heart Coronary MR Angiography Using a 3D Cones Phyllotaxis Sequence

Mario O. Malavé1, Corey A. Baron1, Nii Okai Addy1, Joseph Y. Cheng2, Bob S. Hu1,3, Phillip C. Yang4, and Dwight G. Nishimura1

1Electrical Engineering, Stanford University, Stanford, CA, United States, 2Radiology, Stanford University, Stanford, CA, United States, 3Cardiology, Palo Alto Medical Foundation, Palo Alto, CA, United States, 4Cardiovascular Medicine, Stanford University, Stanford, CA, United States

We have developed a 3D cones alternating-TR steady state free precession (SSFP) sequence for whole-heart coronary MR angiography (CMRA). In this study, we compare motion artifacts and coronary image quality between a sequential-cones and phyllotaxis-cones sequence. Coronary image quality was analyzed using qualitative scores obtained through blinded reading by two board-certified cardiologists, and the IEPA vessel sharpness metric. The results of the study show that the phyllotaxis-cones acquisition can alleviate motion artifacts, improve qualitative image quality scores and increase coronary vessel sharpness.

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