Verification and implementation of dynamic wedge calculations in a treatment planning system based on a dose-to-energy-fluence formalism
Weber, Lars LU ; Ahnesjö, Anders ; Nilsson, Per LU
; Saxner, Mikael
and Knöös, Tommy
LU
(1996)
In Medical Physics
23(3).
p.307-316
- Abstract
- The use of dynamic movements on linear accelerators during irradiation has found a revised interest lately due to the integration of computers to control the accelerator. In this paper, dynamic wedge fields that are produced by moving one of the collimator blocks during irradiation are studied. Since these wedge fields differ from those of mechanical wedges, certain requirements are to be met on the treatment planning system. A pencil-beam-based treatment planning system that uses the resultant energy fluence distribution from the dynamic collimator movement has been extensively reviewed. In calculations, the system treats the dynamic collimated field as a single, modulated field that yields calculation times close to those for open beams.... (More)
- The use of dynamic movements on linear accelerators during irradiation has found a revised interest lately due to the integration of computers to control the accelerator. In this paper, dynamic wedge fields that are produced by moving one of the collimator blocks during irradiation are studied. Since these wedge fields differ from those of mechanical wedges, certain requirements are to be met on the treatment planning system. A pencil-beam-based treatment planning system that uses the resultant energy fluence distribution from the dynamic collimator movement has been extensively reviewed. In calculations, the system treats the dynamic collimated field as a single, modulated field that yields calculation times close to those for open beams. Details are given on the theoretical model used for the calculation of dynamically generated dose distributions. Measurements of depth doses, profiles, and output factors in dynamic wedge fields indicate that calculations accurately predict the outcome from dynamic wedges without any additional measurements other than those used for characterization of static open beams. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1110185
- author
- Weber, Lars
LU
; Ahnesjö, Anders
; Nilsson, Per
LU
; Saxner, Mikael
and Knöös, Tommy
LU
- organization
- publishing date
- 1996
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Medical Physics
- volume
- 23
- issue
- 3
- pages
- 307 - 316
- publisher
- American Association of Physicists in Medicine
- external identifiers
-
- pmid:8815372
- scopus:0029883724
- ISSN
- 0094-2405
- DOI
- 10.1118/1.597797
- language
- English
- LU publication?
- yes
- id
- 79cc345a-36b5-4b64-b536-ac5dc58cf75b (old id 1110185)
- alternative location
- http://dx.doi.org/10.1118/1.597797
- date added to LUP
- 2016-04-01 16:56:14
- date last changed
- 2022-01-28 23:12:03
@article{79cc345a-36b5-4b64-b536-ac5dc58cf75b,
abstract = {{The use of dynamic movements on linear accelerators during irradiation has found a revised interest lately due to the integration of computers to control the accelerator. In this paper, dynamic wedge fields that are produced by moving one of the collimator blocks during irradiation are studied. Since these wedge fields differ from those of mechanical wedges, certain requirements are to be met on the treatment planning system. A pencil-beam-based treatment planning system that uses the resultant energy fluence distribution from the dynamic collimator movement has been extensively reviewed. In calculations, the system treats the dynamic collimated field as a single, modulated field that yields calculation times close to those for open beams. Details are given on the theoretical model used for the calculation of dynamically generated dose distributions. Measurements of depth doses, profiles, and output factors in dynamic wedge fields indicate that calculations accurately predict the outcome from dynamic wedges without any additional measurements other than those used for characterization of static open beams.}},
author = {{Weber, Lars and Ahnesjö, Anders and Nilsson, Per and Saxner, Mikael and Knöös, Tommy}},
issn = {{0094-2405}},
language = {{eng}},
number = {{3}},
pages = {{307--316}},
publisher = {{American Association of Physicists in Medicine}},
series = {{Medical Physics}},
title = {{Verification and implementation of dynamic wedge calculations in a treatment planning system based on a dose-to-energy-fluence formalism}},
url = {{http://dx.doi.org/10.1118/1.597797}},
doi = {{10.1118/1.597797}},
volume = {{23}},
year = {{1996}},
}