Tissue Analysis After Tumor Ablation for Liver Metastases Leading to Immediate Retreatment

Exclusion Criteria

• •Age \< 18
• •Less than 5 mm distance to a structure (GI or biliary tract), that cannot be protected from ablation injury with technical modifications such as hydro or air dissection
• •INR \> 1.5 that cannot be corrected with fresh frozen plasma \*\*
• •Platelet count of \<50,000 that cannot be corrected with transfusion
• •More than 3 tumors in the liver
• •More than 5 tumors of extrahepatic disease (including mediastinal nodes and pulmonary nodules, abdominal or other lymph nodes, and bone metastasis)
• •Presence of any peritoneal Carcinomatosis
• •* For patients on Coumadin, general clinical guidelines for IR ablation will be followed.
• •* For patients with no FDG-PET avid tumors aim 2 of the protocol will not be assessed