Hepatic arterial embolization using flow directed microcatheter

Flow directed microcatheter which has mainly been used in cranial diseases was introduced in hepatic arterial embolization. A double catheter method is used to insert a microcatheter deep into the hepatic artery by a propulsion pump or a tiny guidewire which reinforces the microcatheter. Lipiodol and 1 cubic mm of Gelfoam can be passed through the microcatheter using a small syringe. Flow directed microcatheter is useful for the cases which have elongated hepatic arteries and accessory hepatic arteries arising from the superior mesenteric artery or left gastric artery. Segmental hepatic arterial embolization can be done using this catheter system.