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Reliability of computer-assisted retinal vessel measurementin a population.

Publication ,  Conference
Sherry, LM; Wang, JJ; Rochtchina, E; Wong, T; Klein, R; Hubbard, L; Mitchell, P
Published in: Clin Exp Ophthalmol
June 2002

The purpose of the study was to assess the intergrader and intragrader reliability of computer-assisted retinal vessel dia-meter measurement in a defined, community-based population. Retinal photographs from participants in the Blue Mountains Eye Study were digitized using standard techniques. A grader identified all retinal vessels located 0.5-1.0 disc diameter from the optic disc margin,and a computer program measured the width of these vessels. Intergrader and intragrader reliability was assessed on a random sub-sample of 184 and 97 images, respectively, using quadratic weighted kappa(kappa) and correlation analysis (R2). Intergrader reliability was high for summary indices of retinal arteriolar (kappa = 0.85, R2 = 0.88)and venular (kappa = 0.90, R2 = 0.90)diameters, and their ratio, the arteriole-to-venule ratio (kappa = 0.75, R2 = 0.79).Intragrader reliability was also high, with kappa values ranging from 0.80 to 0.93 and from 0.80 to 0.92 for graders 1 and 2, respectively. It is concluded that the retinal vessel diameters could be reliably measured using computer-assisted software and may be used for population-based research.

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Published In

Clin Exp Ophthalmol

DOI

ISSN

1442-6404

Publication Date

June 2002

Volume

30

Issue

3

Start / End Page

179 / 182

Location

Australia

Related Subject Headings

  • Retinal Vessels
  • Reproducibility of Results
  • Ophthalmology & Optometry
  • Observer Variation
  • Middle Aged
  • Male
  • Image Processing, Computer-Assisted
  • Humans
  • Female
  • Aged, 80 and over
 

Citation

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Sherry, L. M., Wang, J. J., Rochtchina, E., Wong, T., Klein, R., Hubbard, L., & Mitchell, P. (2002). Reliability of computer-assisted retinal vessel measurementin a population. In Clin Exp Ophthalmol (Vol. 30, pp. 179–182). Australia. https://doi.org/10.1046/j.1442-9071.2002.00520.x
Sherry, Lauren M., Jie Jin Wang, Elena Rochtchina, TienY Wong, Ronald Klein, LarryD Hubbard, and Paul Mitchell. “Reliability of computer-assisted retinal vessel measurementin a population.” In Clin Exp Ophthalmol, 30:179–82, 2002. https://doi.org/10.1046/j.1442-9071.2002.00520.x.
Sherry LM, Wang JJ, Rochtchina E, Wong T, Klein R, Hubbard L, et al. Reliability of computer-assisted retinal vessel measurementin a population. In: Clin Exp Ophthalmol. 2002. p. 179–82.
Sherry, Lauren M., et al. “Reliability of computer-assisted retinal vessel measurementin a population.Clin Exp Ophthalmol, vol. 30, no. 3, 2002, pp. 179–82. Pubmed, doi:10.1046/j.1442-9071.2002.00520.x.
Sherry LM, Wang JJ, Rochtchina E, Wong T, Klein R, Hubbard L, Mitchell P. Reliability of computer-assisted retinal vessel measurementin a population. Clin Exp Ophthalmol. 2002. p. 179–182.
Journal cover image

Published In

Clin Exp Ophthalmol

DOI

ISSN

1442-6404

Publication Date

June 2002

Volume

30

Issue

3

Start / End Page

179 / 182

Location

Australia

Related Subject Headings

  • Retinal Vessels
  • Reproducibility of Results
  • Ophthalmology & Optometry
  • Observer Variation
  • Middle Aged
  • Male
  • Image Processing, Computer-Assisted
  • Humans
  • Female
  • Aged, 80 and over