title: Stereotactic body radiation therapy: transcending the conventional to improve outcomes.
abstract: BACKGROUND
  Intracranial delivery of high-dose radiation treatment with stereotactic techniques has paved the way for treatment of extracranial sites.
  
  
  METHODS
  The authors review the evolution of stereotactic body radiation therapy (SBRT) and its application to tumors in the lung and abdomen, addressing both the technical concerns associated with treatment delivery and the emerging clinical data.
  
  
  RESULTS
  Radiation delivery systems have overcome the obstacles with immobilization, respiration, visualization, and daily reproducible imaging. Lung SBRT has been associated with local control rates of over 90%, and liver SBRT has ranged from 55% to 93%. SBRT is being explored in other sites such as the pancreas and kidney. Mature data from ongoing trials will be available in the next 5 years.
  
  
  CONCLUSIONS
  Modern stereotactic radiation treatment techniques allow the safe delivery of high doses to extracranial sites with minimal toxicity, which results in improved outcomes.
authors: Radiation Oncology Program, Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA. thomas.dilling@moffitt.org
authors: Thomas J
authors: TJ
authors: Dilling
authors: Sarah E
authors: SE
authors: Hoffe
mesh_terms: D000008:Abdominal Neoplasms / Q000532:radiotherapy*; D001932:Brain Neoplasms / Q000532:radiotherapy; D006801:Humans; D008113:Liver Neoplasms / Q000532:radiotherapy*; D008175:Lung Neoplasms / Q000532:radiotherapy*; D016634:Radiosurgery