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Proceedings Paper

Evaluation of displays for medical x-ray applications using observer performance
Author(s): Patrik Sund; Markus Hakansson; Lars Lindskog; Ulf Tylen; Susanne Kheddache; Lars Gunnar Mansson
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Paper Abstract

A physical and clinical evaluation of four different display systems intended for the presentation of medical x-ray images was performed. State-of-the-art b/w display devices were studied as well as a low-cost color display. The systems tested were: a) CRT 21' b/w 1K, b) CRT 21' b/w, 2K, c) CRT 21' color, 1K, d) LCD 20.8' b/w, 1.5K. All displays were, as far as possible, adjusted to conform to DICOM 3.0 part 14. The physical evaluation included quantities such as resolution, flickering and uniformity. The clinical evaluation was performed by 15 radiologists using visual grading analysis of one phantom chest image and 12 clinical images of the chest and small bones. One subtle pathological structure and one anatomical structure were rated. The CRT b/w 1K display was used as the reference display system. All displays were evaluated at two different luminance levels (160 and 320 cd/m2) and viewed under two different ambient light conditions (10 and 40 lux). The LCD 1.5K display was rated best and the color CRT display was rated worst for both luminance levels. The result for the color CRT display - unable to produce more than 120 cd/m2 - at the high ambient light setting was very poor.

Paper Details

Date Published: 12 April 2002
PDF: 6 pages
Proc. SPIE 4686, Medical Imaging 2002: Image Perception, Observer Performance, and Technology Assessment, (12 April 2002); doi: 10.1117/12.462671
Show Author Affiliations
Patrik Sund, Sahlgrenska Univ. Hospital/Univ. Goteborg (Sweden)
Markus Hakansson, Sahlgrenska Univ. Hospital/Univ. Goteborg (Sweden)
Lars Lindskog, Sahlgrenska Univ. Hospital/Univ. Goteborg (Sweden)
Ulf Tylen, Sahlgrenska Univ. Hospital/Univ. Goteborg (Sweden)
Susanne Kheddache, Sahlgrenska Univ. Hospital/Univ. Goteborg (Sweden)
Lars Gunnar Mansson, Sahlgrenska Univ. Hospital/Univ. Goteborg (Sweden)


Published in SPIE Proceedings Vol. 4686:
Medical Imaging 2002: Image Perception, Observer Performance, and Technology Assessment
Dev Prasad Chakraborty; Elizabeth A. Krupinski, Editor(s)

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