Abstract #1486

Diffusion-Weighted MR Imaging Vs. Multi-Detector Row CT: Direct Comparison of Capability for Assessment of Management Needs for Anterior Mediastinal Solitary Tumors

Shinichiro Seki¹, Hisanobu Koyama¹, Yoshiharu Ohno²,³, Mizuho Nishio²,³, Daisuke Takenaka⁴, Takeshi Yoshikawa²,³, Sumiaki Matsumoto²,³, Kazuro Sugimura¹

¹Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ²Advanced Biomedical Imaging Research Center, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ³Division of Functional and Diagnostic Imaging Research, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ⁴Diagnostic Radiology, Hyogo Cancer Center, Akashi, Hyogo, Japan

The clinical benefits of differentiation of anterior mediastinal solitary tumors is obvious, especially differentiation in clinical practice of tumors not needing further intervention or treatment and those needing them, as well as of malignant and other tumors. Many studies have reported that these tumors produce characteristic CT and MRI findings, but the differentiation is difficult in some cases. Recently, it has been suggested that diffusion-weighted imaging (DWI) could be useful for assessment of primary malignanct tumor. We hypothesized that DWI might be as effective as multi-detector row CT findings for the diagnosis and management of anterior mediastinal solitary tumors.