Impact of using different materials on the modulation transfer function in digital radiological images

Authors

  • Fabrício Nery Garrafiel Hospital São Lucas da PUCRS
  • Alice Bordignon Vian Hospital São Lucas da PUCRS
  • Dimitri Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS
  • Ana Maria Marques da Silva Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS

DOI:

https://doi.org/10.29384/rbfm.2021.v15.19849001643

Keywords:

radiology, quality control, spatial resolution

Abstract

The advancement of digital radiology has provided a significant improvement in the quality of radiological images. This evolution has brought many benefits for diagnosing images, such as the agility of the process, the improvement of the spatial resolution, the reduction of the necessary exposure time, among others. The latest published work has shown that the Modulation Transfer Function (MTF) is the most appropriate technique to evaluate the spatial resolution of digital images, as it presents a more accurate quantitative result. This work aims to evaluate the impact of using different materials to determine spatial resolution through MTF. Different thicknesses of aluminum (Al) and copper (Cu) plates were used to acquire an edge image. MTF was evaluated using the Edge Spread Function (ESF) technique using the ImageJ COQ plug-in. It was concluded that a variety of aluminum thicknesses are applicable for determining spatial resolution through MTF, as well as a collimation test plate.

Downloads

Download data is not yet available.

References

1. KÖRNER, M. et al. Advances in Digital Radiography: Physical Principles and System Overview. Radiographics. 2007. 27:675-686.
2. BUSHBERG, J.T.; SEIBERT, J.A.; LEIDHOLD, E.M.; BOONE, J.M. The Essential Physics of Medical Imaging Lippincott Williams & Wilkins; 3ª edição, 2012, 1031 páginas.
3. BARBARINI, E.S. Análise óptica de sistemas eletro-ópticos por meio do cálculo da função de transferência de modulação. 2012. Dissertação. Universidade de São Paulo, São Carlos.
4. COLARUSSO, P.; KIDDER, L.H.; LEVIN, I.W.; LEWIS, E.N. Encyclopedia of Spectroscopy and Spectrometry: Raman and Infrared Microspectroscopy. Elsevier; 1999, p. 1945-1954.
5. VIEIRA, M.A.C. Metodologia baseada nas funções de transferência para pré-processamento de imagens mamográficas digitais e sua aplicação em esquema computacional de auxílio ao diagnóstico. 2005. Tese. Universidade de São Paulo, São Carlos.
6. MARQUES DA SILVA, A. M., PATROCÍNIO, A. C., & SCHIABEL, H. (2019). Processamento e Análise de Imagens Médicas. Revista Brasileira de Física Médica, 13(1), 34-48. https://doi.org/10.29384/rbfm.2019.v13.n1.p34-48.
7. SAMEI E.; FLYNN, MJ. A method for measuring the presampled MTF of digital radiographic systems using and edge test device. Medical Physics. 1998. Vol. 25, Nº 1, p. 102-113.
8. BRASIL. Ministério da Saúde. Agência Nacional de Vigilância Sanitária. Resolução da Diretoria Colegiada RDC n. 330, de 20 de dezembro de 2019. Brasil: Diário Oficial da União, ano 2019, p. 92 a 107, 26 dez. 2019.
9. BRASIL. MInistério da Saúde. Agência Nacional de Vigilância Sanitária. Instrução Normativa n. 52, de 26 de dezembro de 2019. Brasil: Diário Oficial da União, ano 2019, p.125, 26 de dez. 2019.
10. SCHNEIDER, C.A., RASBAND, W.S., ELICEIRI, K.W. NIH Image to ImageJ: 25 years of image analysis. Nature Methods, Vol. 9, p. 671-675, 2012.
11. BRASIL. Ministério da Saúde. Agência Nacional de Vigilância Sanitária. Portaria nº 453 de 01 de junho de 1998. Diretrizes básicas de proteção radiológica em radiodiagnóstico médico e odontológico. DOU 01/06/1998.
12. MARSHALL, N.W.; MACKENZIE, A.; HONEY I.D. Quality control measurements for digital x-ray detectors. Physics in Medicine and Biology. 2011. Vol 56, p. 979-999.
13. MASCHIO, M.C. Performance Evaluation of Detector for Digital Radiography. 2013-2014. Tese. Alma Mater Studiorum, Universitá di Bologna. Bologna, Itália. Disponível em: https://www.aapm.org/meetings/amos2/pdf/29-7979-41789-512.pdf. Acesso em: 17/11/2020.

Downloads

Published

2021-09-30

How to Cite

Nery Garrafiel, F., Bordignon Vian, A., Mantovani, D., & Marques da Silva, A. M. (2021). Impact of using different materials on the modulation transfer function in digital radiological images. Brazilian Journal of Medical Physics, 15, 643. https://doi.org/10.29384/rbfm.2021.v15.19849001643

Issue

Vol. 15 (2021)

Section

Artigo Original

License

Creative Commons License

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).

Creative Commons License

Similar Articles

You may also start an advanced similarity search for this article.

Most read articles by the same author(s)

<< < 1 2 3 > >>