Magnetic Resonance Imaging-guided Thermal Radiofrequencey Ablation of Primary Renal Cell Carcinoma, Hepatic Metastasis, and Other Sites of Solid Organ Tumor and Metastases

DISEASE CHARACTERISTICS: Diagnosis of primary renal cell carcinoma, hepatic metastases, or other solid tumor meeting the following criteria: Not amenable to curative or substantial palliative therapy OR Failed chemotherapy or biological response modifier therapy OR Unlikely to benefit from conventional chemotherapy No more than 5 measurable metastatic masses in the liver No greater than 5 cm in diameter Other tumor sites allowed if location and size amenable to ablation therapy Measurable disease PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Life expectancy: More than 4 months Hematopoietic: Granulocyte count at least 1,000/mm^3 Hemoglobin at least 8.0 g/dL Platelet count at least 100,000/mm^3 No untreated bleeding diathesis Hepatic: PT no greater than 13.5 seconds PT/PTT normal if prior warfarin or heparin use Renal: Not specified Cardiovascular: No implanted pacemaker, incompatible aneurysm clip, or other device that would preclude magnetic resonance imaging No myocardial infarction within the past 6 weeks No unstable angina Other: Not pregnant or nursing No serious active infection PRIOR CONCURRENT THERAPY: Biologic therapy: See Disease Characteristics At least 28 days since prior biological response modifier therapy Chemotherapy: See Disease Characteristics At least 28 days since prior chemotherapy Endocrine therapy: Not specified Radiotherapy: No prior radiotherapy to study lesion Surgery: Not specified Other: At least 7 days since prior nonsteroidal antiinflammatory drugs or aspirin At least 1 hour since prior heparin No concurrent warfarin No concurrent investigational drugs