Development of Thrombus in the Major Systemic and Portal Veins after Balloon-Occluded Retrograde Transvenous Obliteration for Treating Gastric Variceal Bleeding: Its Frequency and Outcome Evaluation with CT

In this study, the frequency of thrombus development in the major systemic and portal veins after BRTO was 15%. Although iodized oil deposited in those veins appears to be of no great importance, the low-attenuation thrombus can be associated with occlusion of the affected vein. These tendencies, however, require validation in a larger series.