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Abstract #5027

Improvement of 3D diffusion-prepared MR neurography in the extremities using improved diffusion-sensitized driven-equilibrium (iDSDE) with phase-cycling turbo field echo sequence

Takayuki Sakai1, Masami Yoneyama2, Atsuya Watanabe1, Iain Ball3, Toshiaki Miyati4, and Noriyuki Yanagawa1

1Eastern Chiba Medical Center, Chiba, Japan, 2Philips Electronics Japan, Tokyo, Japan, 3Philips Electronics Australia, North Ryde, Australia, 4Kanazawa University, Ishikawa, Japan

Diffusion-sensitized driven-equilibrium with phase-cycling T1-turbo field-echo (pc-DSDE) enables the visualization of peripheral nerves. However, pc-DSDE has several problems, such as low image stability, poor reproducibility, and partially remaining venous signals. To solve these problems, we improved DSDE pre-pulse module (iDSDE) including B1-insensitive RF pulse and orthogonally combined motion- and diffusion-sensitized gradient scheme. iDSDE showed better visualization of peripheral nerves without contamination of veins.

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