Abstract #2523

Non-Contrast-Enhanced Pulmonary MR Imaging: Comparison of Capability for Nodule Screening Between 1.5T and

Keiko Matsumoto¹, Yoshiharu Ohno¹, Hisanobu Koyama¹, Munenobu Nogami¹, Daisuke Takenaka¹, Yumiko Onishi¹, Nobulazu Aoyama², Hideaki Kawamitsu², Tsutomu Araki³, Kazuro Sugimura¹

¹Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ²Division of Radiology, Kobe University Hospital, Kobe, Hyogo, Japan; ³Department of Radiology, University of Yamanashi, Japan

Academic and social interest to radiation induced cancer development on CT examination is increasing in the world. Since 1997, several investigators have suggested that pulmonary MR imaging on 1.5T MR system has potential for nodule detection as substitution to CT. To the best of our knowledge, no one directly compare the capability of non-contrast-enhanced (non-CE) pulmonary MRI for pulmonary nodule detection between 1.5T and 3.0T MR systems. The purpose of this study was to prospectively and directly compare the capability of non-CE pulmonary MR imaging on 3.0T MR system for nodule detection than that on 1.5T MR system.