title: [Target-volume contours in radiotherapy. General principles].
abstract: Target volume delineation remains an important medical step for conformal radiotherapy. In this general presentation are discussed: the main difficulties for evaluation of gross tumor (GTV) and clinical target volume (CTV), the main recommendations for representation according to ICRU 62 report, differences observed during inter-observer volume comparisons.
authors.affiliation: Institut Bergonié, service de radiothérapie, 229, cours de l'Argonne, 33076 Bordeaux, France. kantor@bergonie.org
authors.forename: G
authors.initials: G
authors.lastname: Kantor
authors.forename: P
authors.initials: P
authors.lastname: Maingon
authors.forename: F
authors.initials: F
authors.lastname: Mornex
authors.forename: J J
authors.initials: JJ
authors.lastname: Mazeron
mesh_terms: D006801:Humans; D008962:Models, Theoretical; D009369:Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D015588:Observer Variation; D011880:Radiotherapy Planning, Computer-Assisted; D020266:Radiotherapy, Conformal / Q000295:instrumentation / Q000379:methods*