A Phase II Study of Magnetic Resonance Guided and Monitored Interstitial Thermal Radiofrequency Ablation of Primary Renal Cell Carcinoma, Hepatic Metastasis, and Other Sites of Solid Organ Tumor and Metastases

OBJECTIVES:

• Determine whether magnetic resonance image monitoring during radiofrequency interstitial thermal ablation can accurately predict complete destruction of focal tumor along with an adequate margin of normal tissue, as demonstrated by absence of growth on subsequent imaging studies for a 1-year period, in patients with primary renal cell carcinoma, hepatic metastases, or other solid tumors.

OUTLINE: Patients are stratified according to disease (localized hepatic metastases vs primary renal neoplasms vs solid tumors in other sites).

Patients undergo thermal ablation by radiofrequency energy under magnetic resonance guidance. Thermal ablation continues until the entire tumor is treated. Treatment ceases when the entire lesion has undergone necrosis or the zone of necrosis or significant heat deposition approaches vital neurovascular structures.

Patients are followed at 2 weeks and at 3, 6, 9, and 12 months.