Impact of Prior Y90 Dosimetry on Toxicity and Outcomes Following SBRT for Hepatocellular Carcinoma

Stereotactic body radiation therapy (SBRT) is the only non-invasive local therapy for the treatment of hepatocellular carcinoma (HCC) and is often utilized following transarterial embolization. There is a paucity of data reporting safety and outcomes of patients (pts) receiving SBRT after yttrium-90 (Y90). We evaluated the impact of Y90 and SBRT composite plan dosimetry on toxicity and outcomes of HCC pts. An IRB-approved registry of 260 liver...