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Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study

BACKGROUND: Radiotherapy plays an important role in cancer treatment today. Successful radiotherapy includes precise positioning and accurate dosimetry. OBJECTIVE: To use NIPAM gel dosimeter and concentric swing machine to simulate and evaluate the feasibility of lung or upper abdominal tumor dose d...

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Autores principales: Sun, Jung-Chang, Hsieh, Bor-Tsung, Cheng, Chih-Wu, Hsieh, Chih-Ming, Tsang, Yuk-Wah, Cheng, Kai-Yuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: IOS Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9028686/
https://www.ncbi.nlm.nih.gov/pubmed/35124590
http://dx.doi.org/10.3233/THC-228012
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author Sun, Jung-Chang
Hsieh, Bor-Tsung
Cheng, Chih-Wu
Hsieh, Chih-Ming
Tsang, Yuk-Wah
Cheng, Kai-Yuan
author_facet Sun, Jung-Chang
Hsieh, Bor-Tsung
Cheng, Chih-Wu
Hsieh, Chih-Ming
Tsang, Yuk-Wah
Cheng, Kai-Yuan
author_sort Sun, Jung-Chang
collection PubMed
description BACKGROUND: Radiotherapy plays an important role in cancer treatment today. Successful radiotherapy includes precise positioning and accurate dosimetry. OBJECTIVE: To use NIPAM gel dosimeter and concentric swing machine to simulate and evaluate the feasibility of lung or upper abdominal tumor dose distribution during breathing. METHODS: We used a concentric swing machine to simulate actual radiotherapy for lung or upper abdomen tumors. A 4 [Formula: see text] 4 cm [Formula: see text] irradiation field area was set and MRI was performed. Next, readout analysis was performed using MATLAB and the 3 mm, 3% gamma passing rate [Formula: see text] 95% was used as a basis for evaluation. RESULTS: The concentric dynamic dose curve for a simulated respiratory rate of 3 seconds/breath and 4 [Formula: see text] 4 cm [Formula: see text] field was compared with 4 [Formula: see text] 4, 3 [Formula: see text] 3, and 2 [Formula: see text] 2 cm [Formula: see text] treatment planning systems (TPS), and the 3 mm, 3% gamma passing rate was 42.87%, 54.96%, and 49.92%, respectively. Pre-simulation showed that the high-dose region dose curve was similar to the 2 [Formula: see text] 2 cm [Formula: see text] TPS result. After appropriate selection and comparison, we found that the 3 mm, 3% gamma passing rate was 97.92% on comparing the [Formula: see text] 60% dose curve with the 2 [Formula: see text] 2 cm [Formula: see text] TPS. CONCLUSIONS: NIPAM gel dosimeter and concentric swing machine use is feasible to simulate dose distribution during breathing and results conforming to clinical evaluation standards.
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spelling pubmed-90286862022-05-06 Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study Sun, Jung-Chang Hsieh, Bor-Tsung Cheng, Chih-Wu Hsieh, Chih-Ming Tsang, Yuk-Wah Cheng, Kai-Yuan Technol Health Care Research Article BACKGROUND: Radiotherapy plays an important role in cancer treatment today. Successful radiotherapy includes precise positioning and accurate dosimetry. OBJECTIVE: To use NIPAM gel dosimeter and concentric swing machine to simulate and evaluate the feasibility of lung or upper abdominal tumor dose distribution during breathing. METHODS: We used a concentric swing machine to simulate actual radiotherapy for lung or upper abdomen tumors. A 4 [Formula: see text] 4 cm [Formula: see text] irradiation field area was set and MRI was performed. Next, readout analysis was performed using MATLAB and the 3 mm, 3% gamma passing rate [Formula: see text] 95% was used as a basis for evaluation. RESULTS: The concentric dynamic dose curve for a simulated respiratory rate of 3 seconds/breath and 4 [Formula: see text] 4 cm [Formula: see text] field was compared with 4 [Formula: see text] 4, 3 [Formula: see text] 3, and 2 [Formula: see text] 2 cm [Formula: see text] treatment planning systems (TPS), and the 3 mm, 3% gamma passing rate was 42.87%, 54.96%, and 49.92%, respectively. Pre-simulation showed that the high-dose region dose curve was similar to the 2 [Formula: see text] 2 cm [Formula: see text] TPS result. After appropriate selection and comparison, we found that the 3 mm, 3% gamma passing rate was 97.92% on comparing the [Formula: see text] 60% dose curve with the 2 [Formula: see text] 2 cm [Formula: see text] TPS. CONCLUSIONS: NIPAM gel dosimeter and concentric swing machine use is feasible to simulate dose distribution during breathing and results conforming to clinical evaluation standards. IOS Press 2022-02-25 /pmc/articles/PMC9028686/ /pubmed/35124590 http://dx.doi.org/10.3233/THC-228012 Text en © 2022 – The authors. Published by IOS Press. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) License (https://creativecommons.org/licenses/by-nc/4.0/) , which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Sun, Jung-Chang
Hsieh, Bor-Tsung
Cheng, Chih-Wu
Hsieh, Chih-Ming
Tsang, Yuk-Wah
Cheng, Kai-Yuan
Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study
title Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study
title_full Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study
title_fullStr Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study
title_full_unstemmed Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study
title_short Using NIPAM gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: A feasibility study
title_sort using nipam gel dosimeter and concentric swing machine to simulate the dose distribu- tion during breathing: a feasibility study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9028686/
https://www.ncbi.nlm.nih.gov/pubmed/35124590
http://dx.doi.org/10.3233/THC-228012
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