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Abstract #2678

Clinical Performance of a Spatiotemporally Accelerated Motion-corrected Pediatric 3D Free-breathing Time-resolved Contrast-enhanced MR Angiography

Tao Zhang 1,2 , Ufra Yousaf 1 , Albert Hsiao 3 , Joseph Y Cheng 1,2 , Marcus Alley 1 , Michael Lustig 2,4 , John M Pauly 2 , and Shreyas S Vasanawala 1

1 Radiology, Stanford University, Stanford, CA, United States, 2 Electrical Engineering, Stanford University, Stanford, CA, United States, 3 Radiology, UC San Diego, San Diego, CA, United States, 4 Electrical Engineering and Computer Sciences, UC Berkeley, Berkeley, CA, United States

Contrast-enhanced MR Angiography (CE-MRA) is ideal for pediatric vascular imaging due to the lack of ionizing radiation. However, pediatric CE-MRA is usually limited by motion and compromised spatiotemporal resolution. General anesthesia (GA) with periods of suspended respiration is often necessary. Recently, a fast free-breathing CE-MRA technique with high spatiotemporal resolution has been developed. It can significantly reduce the level of GA administrated without compromising image quality. In this work, we investigate the clinical performance of free-breathing pediatric time-resolved CE-MRA.

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