Hepatic arterial redistribution for intraarterial infusion of hepatic neoplasms.

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Abstract
An aberrant hepatic artery occurs in approximately half of the population. With increased use of selective intraarterial chemotherapy for hepatic neoplasms, an aberrant hepatic artery becomes a significant obstacle. Occlusion of the artery was attempted to redistribute the entire hepatic arterial flow from multiple arteries to a single artery to facilitate the effect of infusion. There were 6 hepatic artery variations found in the 10 patients evaluated for this study. The aberrant left hepatic artery was embolized in 5 patients, and a replaced right hepatic artery was embolized in 6; 1 patient had embolization of 2 hepatic arteries. The standard embolization method used Gelfoam and a coil to achieve proximal occlusion of the hepatic artery. Redistribution of hepatic flow through intrahepatic collaterals was achieved in all cases.