Effect of monitor image quality on the soft-copy interpretation of chest CR images

Eliot L. Siegel; Bruce I. Reiner; Frank Hooper; Steven Sevarance; Steven Brower

doi:10.1117/12.435510

7 August 2001 Effect of monitor image quality on the soft-copy interpretation of chest CR images

Eliot L. Siegel, Bruce I. Reiner, Frank Hooper, Steven Sevarance, Steven Brower

Proceedings Volume 4323, Medical Imaging 2001: PACS and Integrated Medical Information Systems: Design and Evaluation; (2001) https://doi.org/10.1117/12.435510
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

Four radiologists independently reviewed eighty individual thoracic computed radiography images. These consisted of 41 normal radiographs and 39 abnormal radiographs. Images were reviewed using 2,048 by 1,536 pixel monitors which varied widely in image quality as documented using a SMPTE pattern. Overall sensitivity for pathology ranged from .94 to .97 for the radiologists and varied minimally (0.95 to 1.0) for the four monitor quality levels tested while specificity varied to a much greater extent for the radiologists (0.68 to 0.93) and for the various monitors (0.76 to 0.93). The control (good quality) monitor demonstrated substantially higher specificity than the other three monitors (which varied from very poor to fair) but there were no significant differences among the non-control monitors despite their wide variance with regard to image quality. There was no significant difference in sensitivity for the monitors (including the control). Additionally no significant differences were found in the level of diagnostic confidence by the radiologists for the four monitors. These findings suggest that the actual effect of monitor quality degradation on clinical accuracy and confidence is complex and correlates poorly with traditional quality assurance metrics performed for these systems. Additional investigation into the monitor characteristics which most affect clinical confidence and performance is warranted.

Citation Download Citation

Eliot L. Siegel, Bruce I. Reiner, Frank Hooper, Steven Sevarance, and Steven Brower "Effect of monitor image quality on the soft-copy interpretation of chest CR images", Proc. SPIE 4323, Medical Imaging 2001: PACS and Integrated Medical Information Systems: Design and Evaluation, (7 August 2001); https://doi.org/10.1117/12.435510

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