Abstract #1994

4D Flow Assessment of Aortic Valve Stenosis in a Single Breath-Hold

Adam Rich¹, Yingmin Liu², Lee C. Potter³, Ning Jin⁴, Orlando P. Simonetti^2,5, and Rizwan Ahmad^1,2

¹Biomedical Engineering, The Ohio State University, Columbus, OH, United States, ²Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, United States, ³Electrical Engineering, The Ohio State University, Columbus, OH, United States, ⁴Siemens Healthcare, Columbus, OH, United States, ⁵Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States

MRI-based 4D flow imaging is capable of yielding spatially and temporally resolved mapping of the blood velocity vector. Long acquisition times associated with 4D flow imaging limits its clinical utility. In this work, we apply a recently proposed technique, called ReVEAL4D, to perform 4D flow imaging in 19 patients with aortic valve stenosis. The peak velocity obtained using ReVEAL4D shows good agreement with both transthoracic echocardiography (TTE) and traditional GRAPPA-based 4D flow imaging.

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