Objective: To describe our experience with percutaneous ethanol injection under real-time contrast-enhanced color Doppler sonography with Levovist (SH U 508A; Nihon Schering, Osaka, Japan) for hepatocellular carcinoma after transcatheter arterial infusion.
Methods: Twenty patients (17 men and 3 women; mean age, 58.4 years) with 23 hepatocellular carcinoma nodules (mean +/- SD, 2.7 +/- 1.5 cm) underwent percutaneous ethanol injection under real-time contrast-enhanced color Doppler sonography 1 week after transcatheter arterial infusion. Therapeutic effects were assessed by contrast-enhanced computed tomography and posttreatment fine-needle biopsy. This study was performed on a prospective basis.
Results: After the transcatheter arterial infusion, contrast-enhanced color Doppler sonography showed intense intratumoral color signals in all 23 hepatocellular carcinomas. After the percutaneous ethanol injection, contrast-enhanced color Doppler sonography, fine-needle biopsy, and contrast-enhanced computed tomography showed no color signals, no viable tumor tissues, and no enhancement in any of the 23 hepatocellular carcinomas. Three to 5 (mean, 3.3) percutaneous ethanol injection sessions with a 5.2- to 15.6-mL (mean, 12.8-mL) total volume of ethanol per tumor were required for complete disappearance of color signals on contrast-enhanced color Doppler sonography.
Conclusions: Percutaneous ethanol injection under real-time contrast-enhanced color Doppler sonography has considerable efficacy in treating hepatocellular carcinoma.
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