Abstract
To establish a suitable technique that assureses us to bring more large coagulation area around the antena of needle electrode, is a great importance to succeed percutaneous microwave coagulation therapy for small liver cancer.Microwave coagulation under impaired liver blood circulation, that would be thought to influence on microwave coagulation range, was studied using a pig under general aneasthesia with treatment by Pringle method. Microwave coagulation range with treatment and without, was compaired. Maximal coagulation width with treatment versus without, was 29 mm vs 12 mm (3 minutes of microwave irradiation), 36 mm to 19 mm (5 min.), 35 mm vs 19 mm (10 min.) and 55 mm vs 25 mm (20 min.). In this result, the technique of microwave coagulation with interruption of liver blood circulation, may be applied to not only percutaneous microwave coagulation therapy but intraoperative or laparoscopic microwave coagulation therapy for liver cancer.
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