The ideal couch tracking system-Requirements and evaluation of current systems.
intrafractional motion
motion compensation
robotic couch
treatment couch tracking
Journal
Journal of applied clinical medical physics
ISSN: 1526-9914
Titre abrégé: J Appl Clin Med Phys
Pays: United States
ID NLM: 101089176
Informations de publication
Date de publication:
Oct 2019
Oct 2019
Historique:
received:
15
03
2019
revised:
21
06
2019
accepted:
03
09
2019
pubmed:
20
9
2019
medline:
21
3
2020
entrez:
20
9
2019
Statut:
ppublish
Résumé
Intrafractional motion can cause substantial uncertainty in precision radiotherapy. Traditionally, the target volume is defined to be sufficiently large to cover the tumor in every position. With the robotic treatment couch, a real-time motion compensation can improve tumor coverage and organ at risk sparing. However, this approach poses additional requirements, which are systematically developed and which allow the ideal robotic couch to be specified. Data of intrafractional tumor motion were collected and analyzed regarding motion range, frequency, speed, and acceleration. Using this data, ideal couch requirements were formulated. The four robotic couches Protura, Perfect Pitch, RoboCouch, and RPSbase were tested with respect to these requirements. The data collected resulted in maximum speed requirements of 60 mm/s in all directions and maximum accelerations of 80 mm/s The requirements for the motion compensation by an ideal couch are formulated and found to be feasible for currently available robotic couches. However, the performance these couches can be improved further regarding the position control if the demanded speed and acceleration are taken into account as well.
Identifiants
pubmed: 31535782
doi: 10.1002/acm2.12731
pmc: PMC6806475
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
152-159Subventions
Organisme : Swiss National Science Foundation
ID : CR32I3_153491
Pays : Switzerland
Informations de copyright
© 2019 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.
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