Abstract #2940

Background phase correction in the presence wrap-around artifact: Application in 4D flow imaging

Aaron A. Pruitt¹, Ning Jin², Yingmin Liu³, Orlando Simonetti⁴, and Rizwan Ahmad¹

¹Biomedical Engineering, The Ohio State University, Columbus, OH, United States, ²Cardiovascular MR R&D, Siemens Medical Solutions USA, Inc., Columbus, OH, United States, ³Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, United States, ⁴Internal Medicine, The Ohio State University, Columbus, OH, United States

Residual background phase offsets due to eddy-currents limit the accuracy of flow quantification in 4D flow imaging. Commonly utilized polynomial regression of stationary voxels to correct background phase, however, is unreliable in the presence of wrap-around artifact. Here, we present an automated approach to identify and exclude regions of wrap-around from the fit, and validate its effectiveness in phantom and in vivo.

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