Abstract #4112

Comparison of the Utility of Whole-Body MRI with and Without Quick 3D and Double RF Fat Suppression Techniques, PET/CT and Conventional Examination for Assessment of Recurrence in NSCLC Patients

Yoshiharu Ohno¹,², Mizuho Nishio¹,², Hisanobu Koyama³, Takeshi Yoshikawa¹,², Sumiaki Matsumoto¹,², Nobukazu Aoyama⁴, Katsusuke Kyotani⁴, Saori Satou⁵, Hideaki Kawamitsu⁴, Satoru Takahashi,³⁴, Kazuro Sugimura³

¹Advanced Biomedical Imaging Research Center, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ²Division of Functional and Diagnostic Imaging Research, Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ³Division of Radiology, Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ⁴Center forRadiology and Radiation Oncology, Kobe University Hospital, Kobe, Hyogo, Japan; ⁵Toshiba Medical Systems, Ohtawara, Tochigi, Japan

Recurrence assessment is important for management of postoperative NSCLC patients. We hypothesized that quick and segmented 3D T1-weighted gradient echo sequence (Quick 3D) and a double fat suppression RF pulse (DFS) technique could improve the diagnostic performance of CE-WB-MRI using a 3T MR system as compared with CE-WB-MRI without Quick 3D and DFS, and might be at least as effective as FDG-PET/CT and conventional radiological examinations in this setting. The purpose of this study was thus to compare diagnostic capabilities for assessment of recurrence of CE-WB-MRI with and without Quick 3D and DFS, PET/CT and conventional radiological examinations.