title: What a surgeon needs to know about radiation.
abstract: BACKGROUND
  A better understanding of the physical and biologic principles of radiation oncology, along with improvements in the technical and clinical aspects of this field, have been gained in recent years. Some of these aspects are presented, with an emphasis on their relevance to the oncologic surgeon.
  
  
  RESULTS
  Recent innovations have improved our ability to deliver high radiation doses safely and to increase the therapeutic ratio of radiation. They include the concurrent administration of radiation sensitizers and chemotherapy, altered fractionation schemes, and the conformal delivery of radiation using sophisticated imaging and planning tools.
  
  
  CONCLUSIONS
  The increasing efficacy of radiation, resulting from innovations described in this review and others, enhances the role of radiotherapy in the struggle against cancer.
authors.affiliation: Department of Radiation Oncology, University of Michigan, Ann Arbor, USA.
authors.forename: A
authors.initials: A
authors.lastname: Eisbruch
authors.forename: A S
authors.initials: AS
authors.lastname: Lichter
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use; D003131:Combined Modality Therapy / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000188:drug therapy / Q000532:radiotherapy* / Q000601:surgery; D018787:Radiation Oncology / Q000193:education*; D011880:Radiotherapy Planning, Computer-Assisted
chemical_list: D000970:Antineoplastic Agents