MR-guided percutaneous cryotherapy of malignant liver tumor under horizontal-magnetic open system: initial experience.

摘要

Background/Purpose. We describe the feasibility and accuracy of magnetic resonance (MR)-guided cryotherapy for malignant liver tumor, using a horizontal-magnetic open system. Methods. Using an MR-compatible cryotherapy system and horizontal-magnetic open-configuration MR scanner, we performed percutaneous cryotherapy for four malignant liver tumors. Results. All procedures were carried out safely and accurately without any serious complication. Residual tumor was observed in one patient with metastatic liver tumor located directly under the diaphragm. Conclusions. MR-guided cryotherapy appears to be ideal and desirable as a minimally invasive therapy for liver tumor.