Influence of the color scale in qualitative assessment of myocardial perfusion imaging

Authors

  • Andreia Figueiredo Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Emília Ramos Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Elisabete Carolino Área Científica de Matemática, Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Tânia Vaz Área Científica de Medicina Nuclear, Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Lina Vieira Área Científica de Medicina Nuclear, Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal. Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa. Lisboa, Portugal.

DOI:

https://doi.org/10.25758/set.1391

Keywords:

Visual analysis, Qualitative assessment, Myocardial perfusion imaging, Color scale

Abstract

Introduction – Myocardial perfusion imaging (MPI) is a widely accepted study applied in the diagnosis and follow-up of coronary artery disease. Interpretation of myocardial perfusion images requires visual analysis of the reconstructed slices. The color scale selected can have a significant effect on the final appearance of the image and on the clinical interpretation of myocardial perfusion. Aim – Evaluate the influence of the color scale in the qualitative analysis of MPI and study which one should be preferably used for visual interpretation of myocardial perfusion. Methods – Thirty-five MPI studies were visually interpreted by 16 nuclear medicine technologist students in the following color scales: Cool, Gray, Gray Invert, Thermal and Warm. Visual analysis of Cool’s color scale relied on a semi-quantitative scoring system. The remaining color scales were evaluated by comparison with Cool. Results/Discussion – For Cool’s color scale, inter-operator variability has shown statistically significant differences among all the participants (p<0.05), which can be assigned to the subjectivity of the visual evaluation. The results obtained for Gray and Gray Invert colors scales were the closest for the myocardial perfusion observed with Cool, being alternative color scales suited for this purpose. Regarding Thermal and Warm color scales the results were divergent, showing that they are not the optimal choice for myocardial perfusion interpretation. Conclusion – The color scale selected can influence the qualitative assessment of MPI.

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References

Hesse B, Tägil K, Cuocolo A, Anagnostopoulos C, Bardiés M, Bax J, et al. EANM/ESC procedural guidelines for myocardial perfusion imaging in nuclear cardiology. Eur J Nucl Med Mol Imaging. 2005;32(7):855-97.

Heller G, Mann A, Hendel R. Nuclear cardiology: technical applications. New York: McGraw-Hill Medical; 2009. ISBN 9780071464758

Salerno M, Beller GA. Noninvasive assessment of myocardial perfusion. Circ Cardiovasc Imaging. 2009;2(5):412-24.

Berman DS, Hayes SW, Shaw LJ, Germano G. Recent advances in myocardial perfusion imaging. Curr Probl Cardiol. 2001;26(1):1-140.

Hansen CL, Goldstein RA, Akinboboye OO, Berman DS, Botvinick EH, Churchwell KB, et al. Myocardial perfusion and function: single photon emission computed tomography. J Nucl Cardiol. 2007;14(6):e39-60.

Berman DS, Kang X, Van Train KF, Lewin HC, Cohen I, Areeda J, et al. Comparative prognostic value of automatic quantitative analysis versus semiquantitative visual analysis of exercise myocardial perfusion single-photon emission computed tomography. J Am Coll Cardiol. 1998;32(7):1987-95.

Siennicki J, Kuśmierek J, Kovacevic-Kuśmierek K, Bieńkiewicz M, Chiżyński K, Płachcińska A. The effect of image translation table on diagnostic efficacy of myocardial perfusion SPECT studies. Nucl Med Rev Cent East Eur. 2010;13(2):64-9.

Xu Y, Hayes S, Ali I, Ruddy TD, Wells RG, Berman DS, et al. Automatic and visual reproducibility of perfusion and function measures for myocardial perfusion SPECT. J Nucl Cardiol. 2010;17(6):1050-7.

Antunes MO, Gomes RR, Vieira L. Variabilidade introduzida pelo operador no processamento dos estudos Gated-SPECT do miocárdio [Variability introduced by the operator in processing myocardial Gated-SPECT studies]. Saúde Tecnol. 2014;(11):5-10. Portuguese

Candell-Riera J, Santana-Boado C, Bermejo B, Armadans L, Castell J, Casáns I, et al. Interhospital observer agreement in interpretation of exercise myocardial Tc-99m tetrofosmin SPECT studies. J Nucl Cardiol. 2001;8(1):49-57.

Hansen CL. The role of the translation table in cardiac image display. J Nucl Cardiol. 2006;13(4):571-5.

Rogers WL, Keyes JW Jr. Techniques for precise recording of gray-scale images from computerized scintigraphic displays. J Nucl Med. 1981;22(3):283-6.

Cherry SR, Sorenson JA, Phelps M. Physics in nuclear medicine. 3rd ed. Philadelphia: Elsevier/Saunders; 2012. ISBN 072168341X

Silva S, Santos BS, Madeira J. Using color in visualization: a survey. Comput Graph. 2011;35(2):320-33.

Borland D, Taylor MR 2nd. Rainbow color map (still) considered harmful. IEEE Comput Graph Appl. 2007;27(2):14-7.

Silva S, Madeira J, Santos BS. There is more to color scales than meets the eye: a review on the use of color in visualization. In IV’07 – 11th International Conference Information Visualization, Zurich (Switzerland), 4-6 July 2007. IEEE; 2007. p. 943-50.

Figueiredo S, Costa PF. Image processing and software. In: Ryder H, Testanera G, Veloso Jerónimo V, Vidovič B, editors. Myocardial perfusion imaging: a technologist’s guide. Vienna: European Association of Nuclear Medicine; 2014. p. 77-107.

Bøtker HE, Kaltoft AK, Pedersen SF, Kim WY. Measuring myocardial salvage. Cardiovasc Res. 2012;94(2):266-75.

Fortin MF. O processo de investigação: da concepção à realização. 5ª ed. Loures: Lusociência; 2009. ISBN 9789728383107

Velosa SF, Pestana DD. Introdução à probabilidade e à estatística. 3ª ed. Lisboa: Fundação Calouste Gulbenkian; 2008. ISBN 9789723111507

Lança CC, Reis C, Lança L. Perceção visual na avaliação diagnóstica em mamografia: uma revisão sistemática [Visual perception and diagnostic evaluation in mammography: a systematic review]. Saúde Tecnol. 2012;(T1):31-40. Portuguese.

Cleveland WS, Cleveland WS. A color-caused optical illusion on a statistical graph. Am Stat. 1983;37(2):101-5.

Tedford WH Jr, Bergquist SL, Flynn WE. The size-color illusion. J Gen Psychol. 1977;97(1st Half):145-9.

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Published

2022-08-25

Issue

No. 15 (2016): Maio 2016

Section

Artigos

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How to Cite

Influence of the color scale in qualitative assessment of myocardial perfusion imaging. (2022). Saúde & Tecnologia, 15, 19-27. https://doi.org/10.25758/set.1391