Study of optimization in mammography for thick breasts using different filtrations

Authors

DOI:

https://doi.org/10.33448/rsd-v11i14.36357

Keywords:

Quality control; Optimization; Dose; Mamography; Breast cancer.

Abstract

Mammography is the gold standard exam for breast cancer screening, being recommended by the Brazilian Ministry of Health every 2 years for women aged 50 to 69 years. As there is a great demand in diagnostic imaging services and due to their clinical importance, quality control and the optimization process are indispensable tools to guarantee the quality of the mammography exam. The mammography unit evaluated in this work is limited, in automatic mode, to a maximum voltage of 30 kVp, causing damage to images of thick breasts, in which higher voltages are required to produce an image with diagnostic quality. Thus, the present study aimed to evaluate the contrast-to-noise ratio (CNR), mean glandular dose (MGD) and image quality, in an optimization process directed to the use of more energetic beams in thick breasts (equivalent to 7 cm of PMMA). The results showed that with the use of manual mode to increase the beam energy (32 and 35 kVp), the RCRrel was higher, consequently increasing the DGM. A downward trend in the Figure of Merit (FOM) was observed as the current-time product (mAs) increased sufficiently to meet the minimum national requirement. Regarding the image quality compared to the use of automatic mode, it was possible to observe a greater amount of microcalcification groups and fibers.

References

AAPM. American Association of Physicist in Medicine. (2006). AAPM Report no. 93: Acceptance Testing and Quality Control of Photostimulable Storage Phosphor Imaging System.

Agfa. (2012). CR 30-X, CR 30-Xm: Manual do Utilizador. Mortsel, Belgium: Agfa HealthCare N.V.

Araújo, A. M. C., Peixoto, J. E., Silva, S. M., Travassos, L. V., Souza, R. J., Marin, A. V., & Canella, E. O. (2019). O Controle de Qualidade em Mamografia e o INCA: Aspectos Históricos e Resultados. Revista Brasileira de Cancerologia, 63(3), 165–175. https://doi.org/10.32635/2176-9745.RBC.2017v63n3.132.

Baldelli, P., Phelan, N., & Egan, G. (2010). Investigation of the effect of anode/filter materials on the dose and image quality of a digital mammography system based on an amorphous selenium flat panel detector. The British Journal of Radiology, 83(988), 290–295. https://doi.org/10.1259/bjr/60404532.

Borg, M., Badr, I., & Royle, G. J. (2012). The use of a figure-of-merit (FOM) for optimization in digital mammography: a literature review. Radiation Protection Dosimetry, 151(1), 81–88. https://doi.org/10.1093/rpd/ncr465.

Brasil (2022). Ministério da Saúde. Diretoria Colegiada da Agência Nacional de Vigilância Sanitária. Resolução RDC Nº 611, de 9 de março de 2022. Estabelece os requisitos sanitários para a organização e o funcionamento de serviços de radiologia diagnóstica ou intervencionista.

Brasil (2021). Ministério da Saúde. Diretoria Colegiada da Agência Nacional de Vigilância Sanitária. Instrução Normativa IN Nº 92, de 27 de maio de 2021. Estabelece os requisitos sanitários para a garantia da qualidade e da segurança de sistemas de mamografia.

Brasil. (2015). Ministério da Saúde. Diretrizes para Detecção Precoce do Câncer de Mama. 3a ed.

Brasil. (2013). Ministério da Saúde. Portaria nº 2.898, de 28 de novembro de 2013. Atualiza o Programa Nacional de Qualidade em Mamografia.

Bushberg, J. T., Seibert. J. A., Leidholdt, E. M., Boone, J. M. (2012). The Essential Physics of Medical Imaging. (3rd ed.). Philadelphia, USA: LWW.

Dance, D. R., Christofides, S., Maidment, A. D. A., McLean, I.D., Ng, K.H. (2014). Diagnostic Radiologic Physics: A HandBook for Teachers and Students. Vienna, Austria: IAEA.

Fluke Biomedical. (2011). Mammographic Accreditation Phantom. Model 015 User Guide. Cleveland, Ohio.

IAEA. (2014). International Atomic Energy. International Atomic Energy Agency Nº 17: Quality Assurance Programme for Digital Mammography.

INCA. (2021). Instituto Nacional do Câncer. Histórico do Projeto Piloto de Qualidade em Mamografia. Disponível em: https://www.inca.gov.br/programa-qualidade-em-mamografia/historico-projeto-piloto-qualidade-em-mamografia. Acesso: 09/03/2022.

Izdihar, K., Kanaga, K. C., Krishnapillai, V., & Sulaiman, T. (2015). Determination of Tube Output (kVp) and Exposure Mode for Breast Phantom of Various Thicknesses/Glandularity for Digital Mammography. The Malaysian Journal of Medical Sciences: MJMS, 22(1), 40–49.

Kanaga, K. C., Yap, H. H., Laila, S. E., Sulaiman, T., Zaharah, M., & Shantini, A. A. (2010). A critical comparison of three full field digital mammography systems using figure of merit. The Medical Journal of Malaysia, 65(2), 119–122.

Klausz, R., & Shramchenko, N. (2005). Dose to population as a metric in the design of optimised exposure control in digital mammography. Radiation Protection Dosimetry, 114(1-3), 369–374. https://doi.org/10.1093/rpd/nch579.

Oliveira, M. S., Silva, W. A., Barbosa, K. G. N. ., Trindade Filho, E. M., Maranhão, I. M. ., Almeida, V. G. A., Albuquerque , L. T., Santos, J. V. A., Silva, J. P. S., & Mousinho, K. C. (2022). Diagnóstico situacional sobre o rastreamento do câncer de mama na percepção dos profissionais da saúde. Research, Society and Development, 11(5), e7211528186. https://doi.org/10.33448/rsd-v11i5.28186.

Pereira A. S. et al. (2018). Metodologia da pesquisa científica. [free e-book]. Santa Maria/RS. Ed. UAB/NTE/UFSM.

Perez, A. M. M. M. (2015). Estudo experimental da otimização em sistemas de mamografia digital CR e DR. Dissertação de Mestrado, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo.

Perry, N., Broeders, M., de Wolf, C., Törnberg, S., Holland, R., & von Karsa, L. (2008). European guidelines for quality assurance in breast cancer screening and diagnosis. Fourth edition--summary document. Annals of Oncology: Official Journal of the European Society for Medical Oncology, 19(4), 614–622. https://doi.org/10.1093/annonc/mdm481.

Ranger, N. T., Lo, J. Y., & Samei, E. (2010). A technique optimization protocol and the potential for dose reduction in digital mammography. Medical Physics, 37(3), 962–969. https://doi.org/10.1118/1.3276732.

RTI. (2019). Piranha: Reference Manual. (Version 5.7A). Flöjelbergsgatan, Suécia: RTI Group.

Young, K. C., Oduko, J. M., Bosmans, H., Nijs, K., & Martinez, L. (2006). Optimal beam quality selection in digital mammography. The British Journal of Radiology, 79(948), 981–990. https://doi.org/10.1259/bjr/55334425.

Published

31/10/2022

How to Cite

AZEVEDO, D. S. .; CAMPOS, L. .; ESTÁCIO, M. C. A. .; FERREIRA, C. C. .; VALENÇA, J. V. B.; CONTASSOT, R. X. Study of optimization in mammography for thick breasts using different filtrations. Research, Society and Development, [S. l.], v. 11, n. 14, p. e405111436357, 2022. DOI: 10.33448/rsd-v11i14.36357. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/36357. Acesso em: 8 dec. 2022.

Issue

Section

Health Sciences