Abstract #3544

Feasibility of computed diffusion-weighted MR imaging for visualization of pancreatic adenocarcinoma: comparison with acquired diffusion-weighted imaging

Yoshihiko Fukukura¹, Yuichi Kumagae¹, Hiroto Hakamada¹, Koji Takumi¹, Kiyohisa Kamimura¹, Masanoari Nakajo¹, Tomoyuki Okuaki², and Takashi Yoshiura¹

¹Radiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan, ²Philips Electronics Japan, TN, Japan

We compared directly acquired diffusion-weighted imaging (DWI) at b-values of 1500 s/mm² and 2000 s/mm² with computed DWI (cDWI) at the same b-values, which was calculated from directly acquired DWI data at b-values of 0 s/mm² and 1000 s/mm². Our main result is that the incidence of clear hyperintense pancreatic adenocarcinomas was significantly higher on cDWI at a b-value of 1500 s/mm² than on directly acquired DWI at a b-value of 1000 s/mm² (P < 0.001) and was comparable to the incidence on directly acquired DWI at a b-value of 1500 s/mm², suggesting that cDWI to a b-value of 1500 s/mm² has diagnostic merit.

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