Is invested in coordinating the quality assurance programs of each depart a nonmalignant lesions ment and establishing the team required to execute a radiosurgery proce dure finally there are time estimates for planning and treating a typical stereotactic radiosurgery has been used for nonmalignant lesions such as radiosurgery patient. Quality assurance program on stereotactic radiosurgery report from a quality assurance task group contributing authors wendell lutz jiirgen arndt igor ermakov ervin b podgorsak lothar schad christopher serago stanislav m vatnitsky with 37 figures springer. The quality assurance program quality assurance is an essential aspect of every medical discipline and the importance of a robust quality assurance program to reduce errors of all kinds cannot be overstated. Quality assurance in stereotactic radiosurgery and fractionated stereotactic radiotherapy david shepard ph ddavid shepard phd dallas tx quality assurance in linac srs sbrt otask group reports aapm report 54 stereotactic radiosurgery. Abstract purpose aapm task group 178 gamma stereotactic radiosurgery dosimetry and quality assurance was formed in august 2008 the task group has 12 medical physicists two physicians and two consultants