A new mold material for customized patient positioning in radiotherapy.
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.
Kitahara
T
T
Department of Radiology, Hokkaido University Hospital, Sapporo, Japan.
Shirato
H
H
Nishioka
T
T
Kagei
K
K
Yamaguchi
M
M
Furuya
T
T
Watanabe
Y
Y
Takekawa
N
N
Miyasaka
K
K
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
D011137:Polystyrenes; D011140:Polyurethanes