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Abstract #1498

Patch-based Motion-compensated Image Filter to Improve SNR of Free-Breathing Whole Heart Cardiac MR Late Gadolinium Enhancement Images at 0.55T

Yu Ding1, Yingmin Liu1, Chong Chen1, Juliet Varghese1, Katherine Binzel1, Ning Jin2, Rizwan Ahmad1, and Orlando Simonetti1
1The Ohio State University, Columbus, OH, United States, 2Siemens Healthineers, Columbus, OH, United States

Synopsis

Keywords: Myocardium, Myocardium, Late Gadolinium Enhancement , infarction

Motivation: Low-field wide-bore MRI scanners are cost-effective but suffer from lower SNR, impacting myocardial LGE image quality.

Goal(s): To introduce and evaluate a novel imaging strategy that offers full heart coverage and reduces image count by 50%.

Approach: Developed a sequence acquiring 45-55 overlapped short-axis 2-D slices with patch-based motion compensated filtering to enhance SNR.

Results: The new technique improved SNR in whole heart coverage LGE imaging at 0.55T, though further studies with scarred myocardium are needed.

Impact: This study advances cardiac MRI by demonstrating that a novel LGE imaging technique coupled with MC-KW patch filtering substantially enhances SNR in low-field wide-bore scanners, promising improved myocardial scar detection at reduced costs.

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