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Abstract #5131

Novel Reconstruction Method to Improve the Sharpness of Free Breathing Cardiac MR Late Gadolinium Enhancement Images on a Commercial 0.55T System

Yu Ding1, Yingmin Liu1, Chong Chen1, Ning Jin2, Rizwan Ahmad1, and Orlando Simonetti1
1The Ohio State University, Columbus, OH, United States, 2Siemens Healthineers, Columbus, OH, United States

Synopsis

Keywords: Myocardium, Low-Field MRI, Late Gadolinium EnhancementLow-field cardiac MR imaging has intrinsically low SNR that degrades the image quality, especially for LGE imaging. Using multiple acquisitions and motion-corrected averaging is a well-established method to improve SNR. However, the ineffectiveness of MOCO at low field leads to blurring. We proposed a novel method that integrates motion correction into compressed sensing and reconstructs a single motion-corrected image. Quantitative sharpness measurements demonstrate that the proposed method improves boundary sharpness, independent of differences in SNR.

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