Dr. Choi’s clinical expertise is centered on vascular and interventional radiology, with a specific emphasis on chemoembolization / radioembolization for liver cancer, interventions related to portal hypertension, and musculoskeletal embolization. His scholarly contributions have garnered approximately 1,400 citations to date. Presently, Dr. Choi is leading four clinical trials focused on radioembolization and chemoembolization of hepatocellular carcinoma as the principal investigator.