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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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