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  • Title: [Tumor ablation with MRI navigation--a novel method of microwave coagulation therapy for hepatic tumor].
    Author: Naka S, Kurumi Y, Shimizu T, Kondo H, Mekata E, Naito H, Kawaguchi A, Abe H, Endo Y, Hanasawa K, Tani T, Morikawa S, Ishizuka Y, Yamazaki M, Furukawa K.
    Journal: Gan To Kagaku Ryoho; 2001 Oct; 28(11):1591-4. PubMed ID: 11707987.
    Abstract:
    Fifty-eight patients with hepatic tumor which consisted of 22 hepatocellular carcinomas and 36 metastatic liver tumors were treated by microwave coagulation therapy with MRI navigation. The tumors were located in all segments of liver except S1. In 24 cases among them, the abdominal approach was difficult, because the tumors were located just below the diaphragm. These cases were selected for thoracoscope-assisted microwave ablation under MR-guidance across the diaphragm. All MR data were collected on a vertically oriented open MRI system (0.5 T SIGNA SP/i system: GE Medical Systems). The microwave electrode was introduced into the liver through a 14G needle via a percutaneous puncture with real-time MR image navigation. Microwave ablations at 60 W for 60 seconds were repeated several times depending on the tumor size. MR imaging may be employed as a reliable guide for percutaneous puncture. Moreover, sufficient safety margin could be obtained for hepatic tumor ablation. MR-guided microwave thermoablation therapy is a feasible method of treatment for hepatic tumors.
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