Dosimetry in CR mammography using radiochromic film
DOI:
https://doi.org/10.15392/2319-0612.2022.2013Keywords:
Dosimetry, mammography, computed radiography, simulator objectAbstract
To estimate the dose that a patient's mammary tissue receives during mammographic screening, radiochromic film and objects simulators made of PMMA are used. This material interacts with X-rays in a similar way to tissue. Estimating the dose absorbed by a tissue is important to verify that the dose is within the recommended limits and in this way minimize the undesirable effects that radiation can cause and optimize the radiation dose that patients receive. This work aims to estimate the dose deposited in the breast tissue that a patient can receive during a mammographic screening, when a mammography device with a CR detection system is used. PMMA plates were used as simulator object and radiochromic film to measure the dose from its calibration curve. The dosimetric test was performed on the upper, lower surface and between the plates of the object.
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INCA - Instituto Nacional de Câncer José Alencar Gomes da Silva. Estimativas 2020: Incidência de câncer no Brasil. Rio de Janeiro: Inca; 2021.
SUNG, H.; FERLAY, J.; SIEGEL, R.L.; LAVERSANNE, M.; SOERJOMATARAM, I.; JEMAL, A.; BRAY, F. Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA: A cancer journal for clinicians, v. 71, n. 3, p. 209-249, 2020. DOI: https://doi.org/10.3322/caac.21660
DA SILVA, S. D.; JOANA, G. S.; OLIVEIRA, B. B.; DE OLIVEIRA, M. A.; LEYTON, F.; NOGUEIRA, M. S. Dosimetry and image quality in digital mammography facilities in the State of Minas Gerais, Brazil. Radiation Physics and Chemistry, 116, 292-299, 2015. DOI: https://doi.org/10.1016/j.radphyschem.2015.05.024
SORIN, V.; YAGIL, Y.; YOSEPOVICH, A.; SHALMON, A.; GOTLIEB, M.; NEIMAN, O. H.; SKLAIR-LEVY, M. Contrast-enhanced spectral mammography in women with intermediate breast cancer risk and dense breasts. AJR Am J Roentgenol, v. 211, n. 5, p. W267-W274, 2018. DOI: https://doi.org/10.2214/AJR.17.19355
BRASIL. Curso de atualização em mamografia para técnicos e tecnólogos em radiologia. Ministério da Saúde. Brasília, p. 186. 2014..
STEMBERG, D. R. M.; SCHIABEL, H.; GUIMARAES, L. T. G. Development of a breast statistical phantom prototype for mammographic image qualification, In: WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING, 2009, Munich; Springer, 2009. p. 106-109. DOI: https://doi.org/10.1007/978-3-642-03879-2_30
SOLIMAN, K.; BAKKARI, M. Examination of the relevance of using radiochromic films in measuring entrance skin dose distribution in conventional digital mammography. Radiation Protection Dosimetry, v. 165, n. July 2015, p. 373–375, 2015. DOI: https://doi.org/10.1093/rpd/ncv126
BUANG, S.; SUBRI, E. D.; KANDAIYA, S.; RAZAK, N. N. A. N. A.; YAHAYA, N. Z. Gafchromic XRQA-2 film for Strontium-90/Yttrium-90 (Sr-90/Y-90) detection. Journal of Physics: Conference Series, IOP Publishing, v. 1083, n. 1, p. 012063, 2018. DOI: https://doi.org/10.1088/1742-6596/1083/1/012063
TOMIC, N.; QUINTERO, C.; WHITING, B. R.; ALDELAIJAN, S.; BEKERAT, H.; LIANG, L.; DEBLOIS, F.; SEUNTJENS, I; DEVIC, S. Characterization of calibration curves and energy dependence GafChromicTM XR‐QA2 model based radiochromic film dosimetry system. Medical physics, v. 41, n. 6Part1, p. 062105, 2014. DOI: https://doi.org/10.1118/1.4876295
HWANG, Y. S.; LIN, Y. Y.; CHEUNG, Y. C.; TSAI, H. Y. Three-dimensional dose distribution in contrast-enhanced digital mammography using Gafchromic XR-QA2 films: feasibility study. Radiation Physics and Chemistry, v. 104, p. 204-207, 2014. DOI: https://doi.org/10.1016/j.radphyschem.2013.12.007
NOGUEIRA, L. B.; CAMPOS, T. P.; DOS SANTOS, D. P. M.; DE OLIVEIRA, P. M. C.; FONTAINHA, C. C. Spatial distributions and mean doses in a breast phantom under mammography, with W/Rh and W/Ag target/filter combinations, based on SSDs and XR-QA2. Radiation Physics and Chemistry, p. 109971, 2022. DOI: https://doi.org/10.1016/j.radphyschem.2022.109971
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