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Abstract #5320

Rapid Breath-Hold 3D GRASE MR Urography: Examining Parameter Effects on Image Quality.

Jiahao Chun1 and Yi Zhu2
1The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an City, Shaanxi Province, China, 2Philips Healthcare,Beijing, China, Beijing, China

Synopsis

Motivation: Conventional RT-FSE MRU often requires extended acquisition times, challenging for patients with limited breath-hold capability.

Goal(s): To evaluate the feasibility and performance of short-duration BH-GRASE MRU in reducing scan time while maintaining diagnostic quality.

Approach: Forty-four patients were scanned using both RT-FSE MRU and BH-GRASE MRU with varying parameters. Image quality, SNR, and CNR were assessed.

Results: BH-GRASE MRU reduced scan time to 19 seconds with sufficient image quality, showing strong consistency with RT-FSE MRU in evaluating urinary tract obstruction.

Impact: BH-GRASE MRU reduces scan time to 19 seconds without impacting diagnostic accuracy, benefiting patients unable to sustain long breath-holds. This improvement broadens MRU accessibility.

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