title: A new mold material for customized patient positioning in radiotherapy.
abstract: METHODS
  The new material consists of polystyrene beads coated in a polymerizing substance that when dampened, hardens within 10 min.
  
  
  CONCLUSIONS
  It has a density of less than a tenth of that of water and so is light-weight, a CT number of less than -800 and a minimal effect on the build-up of megavoltage photon beams.
authors.affiliation: Department of Radiology, Hokkaido University Hospital, Sapporo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kitahara
authors.forename: H
authors.initials: H
authors.lastname: Shirato
authors.forename: T
authors.initials: T
authors.lastname: Nishioka
authors.forename: K
authors.initials: K
authors.lastname: Kagei
authors.forename: M
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: T
authors.initials: T
authors.lastname: Furuya
authors.forename: Y
authors.initials: Y
authors.lastname: Watanabe
authors.forename: N
authors.initials: N
authors.lastname: Takekawa
authors.forename: K
authors.initials: K
authors.lastname: Miyasaka
mesh_terms: D002370:Casts, Surgical; D006801:Humans; D011137:Polystyrenes; D011140:Polyurethanes; D011187:Posture; D011835:Radiation Protection / Q000295:instrumentation*; D011878:Radiotherapy / Q000379:methods*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D012449:Safety
chemical_list: D011137:Polystyrenes; D011140:Polyurethanes