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Abstract #3462

Optimization of Direct-coronal Diffusion-weighted Whole Body Imaging with Background Suppression (DWIBS) Using Single-shot Turbo Spin-echo (TSE) at 3T MRI.

Makoto Suzuki1, Tatsuya Kuramoto1, Yuki Hachiman1, Yu Nishina2, Satoru Morita2, Kayoko Abe2, and Masami Yoneyama3

1Department of radiological servece, Tokyo Women's Medical University Hospital, Tokyo, Japan, 2Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University Hospital, Tokyo, Japan, 3IS Business Group, Philips electronics japan, Tokyo, Japan

Direct-coronal diffusion-weighted whole body imaging with background body signal suppression using single-shot turbo spin-echo (TSE-DWIBS) with b-values of 400, 600, 800, and 1000 mm2/s, and DWIBS using echo-planner imaging (EPI-DWIBS) with b-value of 1000mm2/s were obtained using 3T MR scanner in 5 healthy volunteers. We investigated optimal b-value of TSE-DWIBS and compared image distortions, contrast, signal-to-noise ratio (SNR), and artifacts between TSE-DWIBS and EPI-DWIBS. Image contrast and SNR of TSE-DWIBS with b-value of 800 mm2/s were equivalent to those of EPI-DWIBS with b-value of 1000 mm2/s. TSE-DWIBS had less image distortions and artifacts than EPI-DWIBS. Direct-coronal TSE-DWIBS using 3T MRI can be applied for clinical cases.

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