The Effect of Catheter-Directed CT Angiography on Yttrium-90 Radioembolization Treatment of Hepatocellular Carcinoma

CT angiography can be used to delineate the blood supply and volume to a targeted hepatic segment, allowing superselective90Y radioembolization. This approach significantly increases effective 90Y tumor radiation dose without clinically altering liver function or Child-Pugh class.