LIVER HEMODYNAMIC CHANGES BEFORE AND AFTER RADIO-FREQUENCY ABLATION ASSESSED BY DOPPLER ULTRASOUND

Purpose: Radio-frequency ablation (RFA) is now well accepted as an effective local treatment opportunity in patients with nonresectable hepatic malignancies. Experimental and clinical evidence has shown that hyperthermia is relatively safe for hepatic vasculature outside the ablated area due to the cooling effect of the blood stream. On the other hand, the precise liver hemodynamic actions of the generated heat are not well established. The AIM of the study is to evaluate the hemodynamic liver changes related to RFA. Methods and Materials: Sixty three malignant nodules(41 metastatic, 22 Hepatocellular Carcinoma-…