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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