ArticleThe Indian journal of radiology & imaging2026
Predicting Response to Transarterial Chemoembolization in Hepatocellular Carcinoma Using Machine Learning Models.
Article in The Indian journal of radiology & imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Hepatocellular carcinoma (HCC) is a leading cause of cancer-related deaths, with transarterial chemoembolization (TACE) being a key treatment for intermediate-stage cases. Accurate prediction of TACE response remains challenging, prompting the exploration of machine learning (ML) models. Aim: This study aims to investigate ML models for predicting the response to TACE in HCC patients. Materials and Methods: We utilized the public "WAW-TACE" data set. This data set comprises clinical data and multiphasic computed tomography (CT) images with their corresponding masks. We divided this data set randomly into 183 training and validation cases and 50 held-out test cases. Four models were trained: (A) clinical model incorporating demographic and laboratory parameters, (B) radiomic model using PyRadiomics-extracted features, (C) deep neural network (DNN) using multiphasic CT images processed with MaskedAttentionViT, and (D) combined clinicoradiological model. Performance was assessed using fivefold cross-validation and testing on a held-out data set to predict a lack of response to TACE. Results: There were 64 (37%) responders and 109 (63%) nonresponders in the training set. There were 13 (26%) responders and 37 (74%) nonresponders in the test set. In the held-out test set, the clinical support vector machine model achieved an accuracy of 70%, sensitivity of 78.9%, specificity of 50%, and area under the curve (AUC) of 0.778 for predicting failure of TACE. The radiomic logistic regression model demonstrated an accuracy of 76.1%, sensitivity of 85.4%, specificity of 18.2%, and AUC of 0.740. The DNN had an accuracy of 63%, sensitivity of 65.7%, specificity of 54.5%, and AUC of 0.601. The combined clinicoradiological model yielded an accuracy of 55.6%, sensitivity of 50%, specificity of 72.7%, and AUC of 0.639. Conclusion: We utilized a multimodal approach to predict response to TACE in HCC patients. Further optimization and multicenter data sets are required to enhance predictive accuracy further.
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