Abstract #1475

TNM and VALSG Stage Assessments in SCLC: Diagnostic Capability Comparison among PET/MRI, PET/CT, Whole-Body MRI and Conventional Examination

Yoshiharu Ohno^1,2, Masao Yui³, Kaori Yamamoto³, Daisuke Takenaka⁴, Takeshi Yoshikawa⁴, Saki Takeda⁵, Akiyoshi Iwase⁵, Yuka Oshima¹, Nayu Hamabuchi¹, Satomu Hanamatsu¹, Yuki Obama¹, Hiroyuki Nagata¹, Takahiro Ueda¹, Hirotaka Ikeda¹, Kazuhiro Murayama², and Hiroshi Toyama¹

¹Radiology, Fujita Health University School of Medicine, Toyoake, Japan, ²Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, Toyoake, Japan, ³Canon Medical Systems Corporation, Otawara, Japan, ⁴Diagnostic Radiology, Hyogo Cancer Center, Akashi, Japan, ⁵Radiology, Fujita Health University Hospital, Toyoake, Japan

Synopsis

Whole-body MRI and co-registered or integrated PET combined with MRI (PET/MRI) using 1.5 T or 3T MR systems has been suggested as equal to or more accurate than PET/CT or conventional staging or recurrence surveillance methods in thoracic oncologic patients. We hypothesize that whole-body MRI and co-registered PET/MRI for SCLC patients have equal to or superior potential for VALSG and TNM stage assessments than PET/CT and conventional staging method. The purpose of this study was to prospectively compare the capabilities for assessing VALSG and TNM stages among whole-body MRI, PET/MRI, PET/CT and conventional staging method in SCLC patients.

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