Verification of motion induced thread effect during tomotherapy using gel dosimetry
Edvardsson, Anneli LU ; Ljusberg, Anna ; Ceberg, Crister LU
; Medin, Joakim
LU
; Ambolt, Lee
; Nordström, Fredrik
LU
and Ceberg, Sofie
LU
(2015)
8th International Conference on 3D Radiation Dosimetry (IC3DDose)
573.
p.012048-012048
- Abstract
- The purpose of the study was to evaluate how breathing motion during tomotherapy (Accuray, CA, USA) treatment affects the absorbed dose distribution. The experiments were carried out using gel dosimetry and a motion device simulating respiratory-like motion (HexaMotion, ScandiDos, Uppsala, Sweden). Normoxic polyacrylamide gels (nPAG) were irradiated, both during respiratory-like motion and in a static mode. To be able to investigate interplay effects the static absorbed dose distribution was convolved with the motion function and differences between the dynamic and convolved static absorbed dose distributions were interpreted as interplay effects. The expected dose blurring was present and the interplay effects formed a spiral pattern in... (More)
- The purpose of the study was to evaluate how breathing motion during tomotherapy (Accuray, CA, USA) treatment affects the absorbed dose distribution. The experiments were carried out using gel dosimetry and a motion device simulating respiratory-like motion (HexaMotion, ScandiDos, Uppsala, Sweden). Normoxic polyacrylamide gels (nPAG) were irradiated, both during respiratory-like motion and in a static mode. To be able to investigate interplay effects the static absorbed dose distribution was convolved with the motion function and differences between the dynamic and convolved static absorbed dose distributions were interpreted as interplay effects. The expected dose blurring was present and the interplay effects formed a spiral pattern in the lower dose volume. This was expected since the motion induced affects the preset pitch and the theoretically predicted thread effect may emerge. In this study, the motion induced thread effect was experimentally verified for the first time. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5402738
- author
- Edvardsson, Anneli
LU
; Ljusberg, Anna
; Ceberg, Crister
LU
; Medin, Joakim
LU
; Ambolt, Lee
; Nordström, Fredrik
LU
and Ceberg, Sofie
LU
- organization
- publishing date
- 2015
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 8th International Conference on 3D Radiation Dosimetry (IC3DDOSE)
- volume
- 573
- pages
- 012048 - 012048
- publisher
- IOP Publishing
- conference name
- 8th International Conference on 3D Radiation Dosimetry (IC3DDose)
- conference dates
- 2014-09-04 - 2014-09-07
- external identifiers
-
- wos:000352600500048
- scopus:84946221371
- ISSN
- 1742-6588
- 1742-6596
- DOI
- 10.1088/1742-6596/573/1/012048
- language
- English
- LU publication?
- yes
- id
- ac0cf470-bcf4-4b3a-b94b-69ac0aa1377b (old id 5402738)
- date added to LUP
- 2016-04-01 10:15:16
- date last changed
- 2024-10-07 00:24:21
@inproceedings{ac0cf470-bcf4-4b3a-b94b-69ac0aa1377b,
abstract = {{The purpose of the study was to evaluate how breathing motion during tomotherapy (Accuray, CA, USA) treatment affects the absorbed dose distribution. The experiments were carried out using gel dosimetry and a motion device simulating respiratory-like motion (HexaMotion, ScandiDos, Uppsala, Sweden). Normoxic polyacrylamide gels (nPAG) were irradiated, both during respiratory-like motion and in a static mode. To be able to investigate interplay effects the static absorbed dose distribution was convolved with the motion function and differences between the dynamic and convolved static absorbed dose distributions were interpreted as interplay effects. The expected dose blurring was present and the interplay effects formed a spiral pattern in the lower dose volume. This was expected since the motion induced affects the preset pitch and the theoretically predicted thread effect may emerge. In this study, the motion induced thread effect was experimentally verified for the first time.}},
author = {{Edvardsson, Anneli and Ljusberg, Anna and Ceberg, Crister and Medin, Joakim and Ambolt, Lee and Nordström, Fredrik and Ceberg, Sofie}},
booktitle = {{8th International Conference on 3D Radiation Dosimetry (IC3DDOSE)}},
issn = {{1742-6588}},
language = {{eng}},
pages = {{012048--012048}},
publisher = {{IOP Publishing}},
title = {{Verification of motion induced thread effect during tomotherapy using gel dosimetry}},
url = {{http://dx.doi.org/10.1088/1742-6596/573/1/012048}},
doi = {{10.1088/1742-6596/573/1/012048}},
volume = {{573}},
year = {{2015}},
}