Carbon Dioxide (CO2) vs Iodinated Contrast Digital Subtraction Angiography during Balloon-occluded Retrograde Transvenous Obliteration (BRTO) Using Foam Sclerosant for Gastric Varices

CO2 BRTV visualized GV better than did iodine BRTV and changed the management of more than 40% of patients by enabling successful foam BRTO in patients in which conventional liquid BRTO could not be performed.