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Abstract #4125

Amide proton transfer-weighted imaging histogram analysis to predict pathological extramural venous invasion in rectal adenocarcinoma

Weicui Chen1, Guoqing Liu1, Jialiang Chen1, Qiurong Wei1, Yongsong Ye1, Xiaohua Du1, Jiepin Feng1, Zhaoxian Yan1, Kan Deng2, and Xian Liu1
1The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China, 2Philips Healthcare, Guangzhou, China

Synopsis

Keywords: Digestive, Cancer, Rectal neoplasmsThis study evaluate amide proton transfer-weighted (APTw) derived whole-tumour histogram analysis parameters in predicting pathological extramural venous invasion (pEMVI) positive status of rectal adenocarcinoma (RA). The method is to calculate APTw histogram parameters between the pEMVI-negative and positive groups, assess the independent risk factors and diagnosis performance. Our results demonstrated that RA with pEMVI-positive status is associated with higher APTw-SI. The best prediction for EMVI involvement was obtained with a combined model of histopathological factors and APTw histogram parameters. Therefore, the APTw histogram analysis may represent a valuable non-invasive tool in predicting pEMVI positive status of RA.

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