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Abstract #3098

An MRI-Based Radiomics Model for Preoperative Prediction of Microvascular Invasion and Overall Survival in Intrahepatic Cholangiocarcinoma

Gengyun Miao1, Xianling Qian1, Yunfei Zhang2, Chun Yang1, and Mengsu Zeng1
1Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China, Shanghai, China, 2Central Research Institute, United Imaging Healthcare, Shanghai, China

Synopsis

Keywords: Radiomics, Liver

Motivation: Microvascular invasion (MVI) is a significant prognostic factor in intrahepatic cholangiocarcinoma (ICC).

Goal(s): This study aimed to develop an MR radiomics-based model for preoperative MVI status stratification and overall survival prediction.

Approach: Univariate and multivariate logistic regression identified independent clinical and imaging predictors. The radiomic model, utilizing robust features and a logistic regression classifier with the least absolute shrinkage and selection operator algorithm, was integrated into the imaging-radiomics (IR) model.

Results: The IR model demonstrated strong performance (AUCtraining=0.890, AUCvalidation=0.885, AUCtest=0.815), confirmed by calibration and decision curves, and its predicted survival closely matched histological methods.

Impact: The MRI-based radiomics models for preoperative MVI status and OS prediction holds the promise of enabling physicians to tailor medical regimens in ICC patients, optimizing their individual benefit.

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Keywords