Abstract #1121

Precise staging of preoperative 3.0-T MR imaging for esophageal carcinoma by using ex vivo MR imaging-matched pathologic findings as the reference standard

Yi Wei^1,2, Shao-Cheng Zhu^1,2, Sen Wu^1,2, Da-Peng Shi^1,2, and Dan-Dan Zheng³

¹Radiology, Zhengzhou University People's Hospital, Zhengzhou, China, People's Republic of, ²Henan Provincial People's Hospital, Zhengzhou, China, People's Republic of, ³GE Healthcare,MR Research China, Beijing, China, People's Republic of

Magnetic resonance imaging (MRI) was reported to evaluate the esophageal layers invasion in vitro and demonstrated that high-resolution T2-weighted imaging can clearly depict 8 layers of esophagus. However, former studies were mostly carried on ultra-high-field scanner ex vivo, which can not satisfy the need of preoperative staging and provide essential information for clinic. In this study, an in vivo experiment was conducted on 3.0T clinical scanner to prospectively establish the MRI signal characteristics of the normal esophageal wall and to assess the diagnostic accuracy of high-resolution MR imaging for depicting the depth of esophageal wall invasion by corresponding to ex vivo MR imaging-matched certain histopathological slice.

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