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Abstract #0854

Motion-Sensitized Driven-Inversion (MSDI) for improvement of diffusion-prepared MR neurography (SHINKEI) in the brachial plexus

Masami Yoneyama1, Iain Ball2, Yasuhiro Goto3, Hitoshi Tadenuma3, Kayoko Abe4, Makoto Obara1, Tetsuo Ogino1, Tomoyuki Okuaki5, Michinobu Nagao4, and Marc Van Cauteren5

1Philips Electronics Japan, Tokyo, Japan, 2Philips Electronics Australia, North Ryde, Australia, 3Department of Radiological Services, Tokyo Women’s Medical University Hospital, Tokyo, Japan, 4Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women’s Medical University Hospital, Tokyo, Japan, 5Philips Healthcare AsiaPacific, Tokyo, Japan

Brachial plexus is anatomically complex and may be involved in a variety of pathologies that leads to significant morbidity. MR neurography, based on diffusion-prepared MR neurography (SHINKEI), plays a major role in the diagnostic work-up of plexus pathologies. To solve the problems that caused by the current fat suppression techniques (SPAIR and STIR) with SHINKEI, we developed motion-sensitized driven inversion (MSDI). MSDI could simultaneously suppress fat, flow and muscle signals using only one pre-pulse module. SHINKEI with MSDI provides uniform fat suppression in the brachial plexus, as in STIR, with no significant decrease in SNR compared to SPAIR.

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