Accuray Incorporated announced publication of a study demonstrating the benefits of the CyberKnife(R) Robotic Radiosurgery System in treating central lung tumors. Historically, the treatment of central lung tumors using gantry based Stereotactic Body Radiotherapy (SBRT) has been challenging and required a great deal of accuracy to avoid risks of damaging critical structures, such as the airway, esophagus and heart that can result in serious complications including death, leaving patients with fewer, less effective and sometimes only palliative options. This study, published in the January 2012 online issue of Radiotherapy & Oncology (commonly known as the Green Journal), demonstrated that the CyberKnife System, which leverages the Synchrony(R) Respiratory Tracking System and Lung Optimized Treatment to non-invasively track and correct for respiratory motion, allows clinicians to deliver lung SBRT to patients with central lung lesions with minimal toxicity, sparing surrounding healthy tissue, such as the esophagus, trachea and heart while also providing high levels of tumor control.