Stereotactic ablative radiotherapy for early-stage central lung tumors: status, challenges, and future considerations

Different from general radiotherapy, stereotactic ablative radiation (SABR), also referred to as stereotactic body radiotherapy (SBRT), delivers very high radiation doses to restricted volumes using multiple, precisely-aimed radiotherapy beams, which has a better effect on survival and tumor control, and has gained substantial attention in recent years (1,2).