How do you approach salvage for a local/marginal failure after IR ablation for medically inoperable stage I NSCLC?  

Local/marginal failure after IR ablation can be salvaged with SBRT depending on the location and imaging. Since IR ablation is not commonly done in primary lung cancer, we don't have a lot of information on using SBRT in this situation. The dose and fractionation will depend on the location and prox...