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Portal Vein Embolization
Recently, preoperative percutaneous portal vein embolization has been used to induce hypertrophy of the future liver remnant before surgery. This technique is currently used in patients in which a complex extended hepatectomy is anticipated and the future liver remnant is small or functionally compromised. The recent advent of helical computed tomography (CT) allows accurate 3 dimensional measurements before and after portal vein embolization preoperatively.

Chemoembolization is the administration of antineoplastic agent together with an embolizing vehicle. This allows slow release of the agent as well as obstruction of the blood supply to the neoplasm.