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A comparative contrast-detail study of five medical displays.

Publication ,  Journal Article
Samei, E; Ranger, NT; Delong, DM
Published in: Med Phys
April 2008

The objective of this study was to compare the contrast-detail performance of five different commercial liquid crystal displays (LCDs) to other LCD and cathode-ray tube (CRT) displays for medical applications. A contrast-detail phantom, supplemented with 5 in. of acrylic, was imaged on a commercial digital radiographic system using techniques comparable to chest radiography. The phantom design enabled observer evaluation by a four-alternative forced choice paradigm. The acquired images were independently scored by five observers on five medical display devices: a 5 megapixel monochrome LCD, a 3 megapixel monochrome LCD, a 9 megapixel color LCD, a 5 megapixel monochrome CRT, and a mammographic-grade monochrome CRT. The data were analyzed using the method suggested by the manufacturer based on a nearest neighbor correction technique. They were further analyzed using a logistic regression response model with a natural threshold using an overall chi-square test for display type followed by pairwise comparisons for individual display performance. The differences between the display devices were small. The standard analysis of the results based on the manufacturer-recommended method did not yield any statistically discernible trend among displays. The logistic regression analysis, however, indicated that the 5 megapixel monochrome LCD was statistically significantly (p <0.0001) superior to the others, followed by the 3 megapixel monochrome LCD (p<0.0001). The three other displays exhibited lower but generally similar performance characteristics. The findings suggest that 5 and 3 megapixel monochrome LCDs provide comparable but subtly superior contrast detectability than other tested displays, with the former performing slightly better in the detection of subtle and fine details.

Duke Scholars

Published In

Med Phys

DOI

ISSN

0094-2405

Publication Date

April 2008

Volume

35

Issue

4

Start / End Page

1358 / 1364

Location

United States

Related Subject Headings

  • User-Computer Interface
  • Tomography, X-Ray Computed
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Humans
  • Data Display
  • Contrast Sensitivity
  • Computer Terminals
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Samei, E., Ranger, N. T., & Delong, D. M. (2008). A comparative contrast-detail study of five medical displays. Med Phys, 35(4), 1358–1364. https://doi.org/10.1118/1.2868780
Samei, Ehsan, Nicole T. Ranger, and David M. Delong. “A comparative contrast-detail study of five medical displays.Med Phys 35, no. 4 (April 2008): 1358–64. https://doi.org/10.1118/1.2868780.
Samei E, Ranger NT, Delong DM. A comparative contrast-detail study of five medical displays. Med Phys. 2008 Apr;35(4):1358–64.
Samei, Ehsan, et al. “A comparative contrast-detail study of five medical displays.Med Phys, vol. 35, no. 4, Apr. 2008, pp. 1358–64. Pubmed, doi:10.1118/1.2868780.
Samei E, Ranger NT, Delong DM. A comparative contrast-detail study of five medical displays. Med Phys. 2008 Apr;35(4):1358–1364.

Published In

Med Phys

DOI

ISSN

0094-2405

Publication Date

April 2008

Volume

35

Issue

4

Start / End Page

1358 / 1364

Location

United States

Related Subject Headings

  • User-Computer Interface
  • Tomography, X-Ray Computed
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Humans
  • Data Display
  • Contrast Sensitivity
  • Computer Terminals