High Dose Radiation Therapy With Concurrent Chemotherapy in Locally Advanced Non-small Cell Lung Cancer

Local failure remains high in patients with locoregionally advanced non-small lung cancer. Given that a biological equivalent dose (BED)more than 100 Gy yields approximately a local control rate of 90% in early-stage non-small lung cancer, this BED or ever higher is logically required to control local disease for locally advanced non-small lung cancer. However, dose escalation is limited by radiation-related toxicity. Use of hyperfractionated radiation Therapy boost to residual metabolic disease as defined by positron emission tomography and computed tomography (PET/CT) immediately after standard chemoradiotherapy (SCRT) using image-guided (IG) IMRT could potentially improve local control and perhaps survival