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Abstract #0913

Highly Accelerated Steady State Ferumoxytol Abdominal MRA using Compressed Sensing

Chengcheng Zhu1, Joseph Leach1, Sinyeob Ahn2, Peter Speier3, Michaela Schmidt3, Christoph Forman3, Gerhard Laub2, David Saloner1, and Michael D Hope1

1Radiology, University of California, San Francisco, San Francisco, CA, United States, 2Siemens Healthcare, San Francisco, CA, United States, 3Siemens Healthcare, Erlangen, Germany

Clinical CE-MRA of the abdomen is limited in spatial resolution/coverage, or is excessively time consuming. We implemented a compressed sensing (CS) steady state MRA technique with an acceleration factor of 25, achievable in a 15 second breath hold, with 0.8mm isotropic resolution and a large 48cm coverage. In an investigation on 13 patients, we found CS-MRA had higher image quality scores and vessel sharpness compared with free breathing high-resolution MRA and clinical breath hold low-resolution MRA, with a reduced scan time. Our proposed CS-MRA technique is promising for the evaluation of abdominal vessels.

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