Abstract
This study focused on the effects of pneumothorax size quantification in digital radiology environments when a quantification method is selected according to the radiologist’s criteria. The objective of this study was to assess the effects of factors, including the radiologist (with different experience), displays (medical-grade and consumer-grade displays), or display calibration, on the Rhea, Collins, and Light quantification methods. This study used a factorial design with 76 cases, including 16 pneumothorax cases observed by six radiologists on three displays with and without the DICOM standard calibration. The gold standard was established by two radiologists by using computed tomography. Analysis of variance (ANOVA) was performed on the pneumothorax sizes. For the three quantifications methods, none of the evaluated factors were significant. We conclude that radiologists, displays, and calibration do not significantly affect the quantification of pneumothorax size in different digital radiology environments.
Similar content being viewed by others
References
Light RW: Management of spontaneous pneumothorax. Am J Respir Crit Care Med 148:245–248, 1993
Kelly A-M, Druda D: Comparison of size classification of primary spontaneous pneumothorax by three international guidelines: a case for international consensus? Respir Med 102:1830–1832, 2008
Do S, Salvaggio K, Gupta S, Kalra M, Ali NU, Pien H: Automated quantification of pneumothorax in CT. Comput Math Methods Med(2012), 2012
Collins C, Lopez A, Mathie A, Wood V, Jackson J, Roddie M: Quantification of pneumothorax size on chest radiographs using interpleural distances: regression analysis based on volume measurements from helical CT. AJS 165:1127–1130, 1995
Rhea JT, DeLuca SA, Greene RE: Determining the size of pneumothorax in the upright patient. Radiology 144:733–736, 1982
Light RW: Pneumothorax. Williams & Wilkins, Baltimore, 1990
De Leyn P, Lismonde M, Ninane V, Noppen M, Slabbynck H, Van Meerhaeghe A, Van Schil P, Vermassen F: Guidelines Belgian Society of Pneumology. Guidelines on the management of spontaneous pneumothorax. Acta Chir Belg 105:265–267, 2005
Noppen M, Alexander P, Driesen P, Slabbynck H, Verstraete A: Quantification of the size of primary spontaneous pneumothorax: accuracy of the Light index. Respiration 68:396–399, 2001
Kelly A-M, Weldon D, Tsang AYL, Graham CA: Comparison between two methods for estimating pneumothorax size from chest X-rays. Respir Med 100:1356–1359, 2006
Hoi K, Turchin B, Kelly AM: How accurate is the Light index for estimating pneumothorax size? Australas Radiol 51:196–198, 2007
NEMA: Digital Imaging and Communications in Medicine. National Electrical Manufacturer’s Association, Rosslyn, 2001
Fetterly K, Blume H, Flynn M, Samei E: Introduction to grayscale calibration and related aspects of medical imaging grade liquid crystal displays. J Digit Imaging 21:193–207, 2008
Salazar AJ, Camacho JC, Aguirre DA: Comparison between different cost devices for digital capture of X-ray films with computed tomography (CT) correlation. Telemed J E Health 14:275–282, 2011
Salazar AJ, Camacho JC, Aguirre DA: Agreement and reading-time assessment of differently priced devices for digital capture of X-ray films. J Telemed Telecare 18:82–85, 2011
Dorfman DD, Berbaum KS, Lenth RV, Chen YF, Donaghy BA: Monte Carlo validation of a multireader method for receiver operating characteristic discrete rating data: factorial experimental design. Acad Radiol 5:591–602, 1998
Hanley JA, McNeil BJ: A method of comparing the areas under receiver operating characteristic curves derived from the same cases. Radiology 148:839–843, 1983
Fawcett T: An introduction to ROC analysis. Pattern Recogn Lett 27:861–874, 2006
Metz CE: ROC methodology in radiologic imaging. Invest Radiol 21:720–733, 1986
Metz C: ROC analysis in medical imaging: a tutorial review of the literature. Radiol Phys Technol 1:2–12, 2008
SMTP: Specifications for medical diagnostic imaging test pattern for television monitors and hard-copy recording cameras. SMPTE J 95:693–695, 1986
Gray J: Use of the SMPTE test pattern in picture archiving and communication systems. J Digit Imaging 5:54–58, 1992
Gray JE, Lisk KG, Haddick DH, Harshbarger JH, Oosterhof A, Schwenker R: Test pattern for video displays and hard-copy cameras. Radiology 154:519–527, 1985
Forsberg DA: Quality assurance in teleradiology. Telemed J 1:107–114, 1998
Thompson SK, Willis CE, Krugh KT, Jeff Shepard S, McEnery KW: Implementing the DICOM grayscale standard display function for mixed hard- and soft-copy operations. J Digit Imaging 15:27–32, 2002
Hillis SL: A comparison of denominator degrees of freedom methods for multiple observer ROC analysis. Stat Med 26:596–619, 2007
Dorfman DD, Berbaum KS, Metz CE: Receiver operating characteristic rating analysis. Generalization to the population of readers and patients with the jackknife method. Invest Radiol 27:723–731, 1992
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Salazar, A.J., Aguirre, D.A., Ocampo, J. et al. Evaluation of Three Pneumothorax Size Quantification Methods on Digitized Chest X-ray Films Using Medical-Grade Grayscale and Consumer-Grade Color Displays. J Digit Imaging 27, 280–286 (2014). https://doi.org/10.1007/s10278-013-9651-2
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10278-013-9651-2