title: Point/counterpoint. To ensure that target volumes are not underirradiated when respiratory motion may affect the dose distribution, 4D dose calculations should be performed.
authors.affiliation: Department of Radiation Physics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, USA. gstarksc@mdanderson.org
authors.forename: George
authors.initials: G
authors.lastname: Starkschall
authors.forename: John P
authors.initials: JP
authors.lastname: Gibbons
authors.forename: Colin G
authors.initials: CG
authors.lastname: Orton
mesh_terms: D006801:Humans; D009068:Movement; D011832:Radiation Injuries / Q000517:prevention & control*; D011835:Radiation Protection / Q000379:methods*; D011874:Radiometry / Q000379:methods*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D020266:Radiotherapy, Conformal / Q000379:methods*; D015656:Respiratory Mechanics