Abstract #2984

Whole-heart coronary MRA at 3.0T: Comparison between conventional method and new acceleration technique by compressed SENSE.

Shinichi Takase¹, Masaki Ishida¹, Yoshitaka Goto¹, Shiho Isoshima¹, Wakana Makino¹, Haruno Sakuma¹, Makoto Obara², Tsunehiro Yamahata¹, Katsuhiro Inoue¹, Kakuya Kitagawa¹, and Hajime Sakuma¹

¹Department of Radiology, Mie University Hospital, Tsu, Mie, Japan, ²MR Clinical Science, Philips Japan, Ltd., Tokyo, Japan

Compressed SENSE (CSENSE) is a novel method to combine Sensitivity Encoding (SENSE) and compressed sensing for rapid MR imaging. CSENSE can achieve a reduction factor higher than those achieved by SENSE while preserving the image quality by the denoising effect with iterations. In this work, CSENSE was applied to 3.0T free-breathing whole-heart coronary MRA to reduce the acquisition time. As compared to the conventional acquisition method using SENSE, CSENSE allows for up to 2.5-fold reduction of acquisition time without significant degradation of image quality of whole-heart coronary MRA at 3.0T, especially after the contrast injection.

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