====== The International Radiosurgery Research Foundation ====== http://www.irr-f.org/ The International Radiosurgery Research Foundation consists of academic and clinical centers of excellence where brain [[Stereotactic Radiosurgery]] is performed using the [[Leksell]] [[Gamma Knife]]. All participating centers have a track record of outcomes research and participation in clinical trials. The primary goal of the IRRF is to facilitate retrospective and prospective [[clinical trial]]s and outcomes analysis that evaluate the role of [[Gamma Knife radiosurgery]] in a wide spectrum of clinical indications. Because individual centers may evaluate only a small number of patients with rare conditions, pooling of information is critical to evaluate and to improve outcomes. Each center has a professional team consisting of one or more neurological surgeons, radiation oncologists, and medical physicists. Participation is by invitation of the Board of Directors. ​ The IRRF is a non-profit scientific, educational, and research entity incorporated in the state of Pennyslvania.​ ​