Comparison of Choi criteria and Response Evaluation Criteria in Solid Tumors (RECIST) for intrahepatic cholangiocarcinoma treated with glass-microspheres Yttrium-90 selective internal radiation therapy (SIRT).

•After selective internal radiation therapy in intrahepatic cholangiocarcinoma, Choi criteria better identify patients with long survival than RECIST.•Choi criteria should be used for the assessment of treatment efficacy in this situation.•The decrease of density in the treated lesions is a more sensitive prognostic criteria than the change of size.