Abstract #0433

Computed Diffusion-Weighted Imaging in the Thorax: Determination of Appropriate b Value for Improving N-Stage Assessment in NSCLC Patients

Yoshiharu Ohno^1,2, Masao Yui³, Daisuke Takenaka⁴, Yoshimori Kassai³, Kazuhiro Murayama¹, and Takeshi Yoshikawa²

¹Radiology, Fujita Health University School of Medicine, Toyoake, Japan, ²Radiology, Kobe University Graduate School of Medicine, Kobe, Japan, ³Canon Medical Systems Corporation, Otawara, Japan, ⁴Diagnostic Radiology, Hyogo Cancer Center, Akashi, Japan

No major papers that determined the utility of cDWI for diagnosis of lymph node metastasis have been reported. We hypothesize that cDWI has a potential for improving diagnostic performance of N-stage in NSCLC patients as compared with aDWI and FDG-PET/CT, when set appropriate b value. The purpose of this study is to determine the utility of cDWI for differentiating metastatic from non-metastatic lymph nodes in NSCLC patients as compared with aDWI and FDG-PET/CT.

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