title: Point/Counterpoint. IGRT has limited clinical value due to lack of accurate tumor delineation.
authors.affiliation: National Medical Physics Services, Tyler, Texas 75703, USA. Christopher.njeh@natmedphysics.com
authors.forename: Christopher F
authors.initials: CF
authors.lastname: Njeh
authors.forename: Lei
authors.initials: L
authors.lastname: Dong
authors.forename: Colin G
authors.initials: CG
authors.lastname: Orton
mesh_terms: D006801:Humans; D009369:Neoplasms / Q000175:diagnosis* / Q000532:radiotherapy*; D058958:Organs at Risk / Q000528:radiation effects; D011835:Radiation Protection / Q000379:methods*; D061089:Radiotherapy, Image-Guided / Q000639:trends*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D016896:Treatment Outcome