Parâmetros de auxílio a tomadas de decisões clínicas e tolerâncias em testes de garantia de qualidade para gating respiratório
DOI:
https://doi.org/10.29384/rbfm.2022.v16.19849001698Keywords:
Física Médica, Radioterapia, Gating Respiratório, SBRT, Time Delay, Garantia da Qualidade, Radioproteção, Medical Physics, Radiotherapy, Respiratory Gating, Quality Assurance, RadioprotectionAbstract
Tumor movement during respiration results in significant geometric uncertainties and in tumor dose delivery, particularly in the thorax and abdomen regions. These uncertainties when on the Stereotactic Radiation Therapy (SBRT) modality are related to serious issues such as cell death of important health tissue volumes and the non-treatment of target volume. Large internal margins are needed to ensure the fully cover of the target, but it can be harmful for organs at risk that surround the treatment region. Several techniques of respiratory movement management (4D tomography, gating, breath holding, etc.) can be applied as a solution to this problem, all these with the objective of reducing the treatment margins and still guaranteeing the coverage of the target. Adequate parameters for performing treatments with respiratory movement management devices need to be defined to ensure image quality and delivery accuracy. The present study aims to review these parameters and contribute to the advancement of treatment techniques that assess tumor movements based on the evaluation of 99 samples used in SBRT treatments.
Downloads
References
Shiinoki T, Kawamura S, Uehara T, Yuasa Y, Kamomae T, Kotakebayashi T, et al. Quality Assurance for Respiratory-Gated Radiotherapy Using the Real-Time Tumor-Tracking Radiotherapy System. Int J Med Phys Clin Eng Radiat Oncol [Internet]. 2014 Jun 12 [cited 2022 Mar 12];03(03):125–32. Available from: http://file.scirp.org/Html/2-2660081_48141.htm
Harada K, Katoh N, Suzuki R, Ito YM, Shimizu S, Onimaru R, et al. Evaluation of the motion of lung tumors during stereotactic body radiation therapy (SBRT) with four-dimensional computed tomography (4DCT) using real-time tumor-tracking radiotherapy system (RTRT). Physica Medica [Internet]. 2016 Feb 1 [cited 2022 Mar 12];32(2):305–11. Available from: http://dx.doi.org/10.1016/j.ejmp.2015.10.093
Sothmann T, Gauer T, Werner R. Influence of 4D CT motion artifacts on correspondence model-based 4D dose accumulation. https://doi.org/101117/122291481 [Internet]. 2018 Mar 12 [cited 2022 Mar 30];10576:86–92. Available from: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10576/105760F/Influence-of-4D-CT-motion-artifacts-on-correspondence-model-based/10.1117/12.2291481.full
Sentker T, Schmidt V, Ozga AK, Petersen C, Madesta F, Hofmann C, et al. 4D CT image artifacts affect local control in SBRT of lung and liver metastases. Radiotherapy and Oncology [Internet]. 2020 Jul 1 [cited 2022 Mar 30];148:229–34. Available from: http://www.thegreenjournal.com/article/S0167814020301870/fulltext
Persson GF, Nygaard DE, Brink C, Jahn JW, Munck af Rosenschöld P, Specht L, et al. Deviations in delineated GTV caused by artefacts in 4DCT. Radiotherapy and Oncology. 2010 Jul 1;96(1):61–6.
Antony R, Lonski P, Ungureanu E, Hardcastle N, Yeo A, Siva S, et al. Independent review of 4DCT scans used for SABR treatment planning. J Appl Clin Med Phys [Internet]. 2020 Mar 1 [cited 2022 Mar 13];21(3):62–7. Available from: https://onlinelibrary.wiley.com/doi/full/10.1002/acm2.12825
Klein EE, Hanley J, Bayouth J, Yin FF, Simon W, Dresser S, et al. Task group 142 report: Quality assurance of medical acceleratorsa. Med Phys. 2009;36(9):4197–212.
REDCap (Researc Electronic Data Capture) [Internet]. [cited 2022 Oct 11]. Available from: https://redcapbrasil.com.br/en/
Vergalasova I, Maurer J, Yin FF. Potential underestimation of the internal target volume (ITV) from free-breathing CBCT. Med Phys [Internet]. 2011 [cited 2022 Mar 30];38(8):4689–99. Available from: https://pubmed.ncbi.nlm.nih.gov/21928643/
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Milena Foltran de Miranda, Juan Valani Marques de Souza, Milena Giglioli, Lucas Francisco Carmello Guimarães
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The submission of original articles to the Brazilian Journal of Medical Physics implies the transfer, by the authors, of the rights of print and digital publication. Copyright for published articles remains with the author, with journal rights on first publication. Authors may only use the same results in other publications by clearly indicating this journal as the original publisher. As we are an open access journal, free use of articles in educational, scientific, non-commercial applications is allowed, as long as the source is cited.
The Brazilian Journal of Medical Physics is under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
