Abstract #3472

Optimization of Single-shot Turbo Spin-echo Diffusion-weighted Imaging with Parallel Imaging in Healthy Pancreas

Yu Nishina¹, Satoru Morita¹, Tatsuya Kuramoto², Makoto Suzuki², Hitoshi Tadenuma², Yasuhiro Goto², Masami Yoneyama³, and Shuji Sakai¹

¹Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University Hospital, Tokyo, Japan, ²Radiological Service, Tokyo Women's Medical University Hospital, Tokyo, Japan, ³Philips Electronics Japan, Tokyo, Japan

We compared the image quality of single-shot turbo spin-echo diffusion-weighted imaging (TSE-DWI) with parallel imaging and conventional echo planar DWI (EPI-DWI) in the pancreas of healthy volunteers. TSE-DWI with a sensitivity encoding factor (SF) of 2, 4, 6, and EPI-DWI with SF2 (b-values = 0, 500, 1000 s/mm2) were obtained using a 3T MRI scanner. Two radiologists evaluated overall image quality, susceptibility artifacts, and aliasing artifacts. TSE-DWI with moderate SF had better image quality than conventional EPI-DWI for a medium b-value because of less susceptibility artifacts.

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