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Agreement among ophthalmologists in marking the optic disc and optic cup in fundus images

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Abstract

The purpose of this paper was to study the agreement between six ophthalmologists who manually marked the optic nerve head using fundus images. Four different parameters were considered from the manual marking images: (1) disc (area and centroid), (2) cup (area and centroid), (3) horizontal and vertical cup-to-disc ratios, and (4) including the previous two parameters for both horizontal and vertical cup-to-disc ratios, and investigated the comprehensive agreement and accuracy among all the ophthalmologists. The best agreement percentage for all the parameters combined was between ophthalmologists number one and three for 44 % of images, and the best accuracy was for ophthalmologist number one with 77.4 % of 315 total tested images. Our analysis shows that more than half of the images in the dataset were not agreed upon when considering all the parameters together.

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Acknowledgments

The authors would like to acknowledge the Natural Sciences and Engineering Research Council of Canada (NSERC) for financial support for this research (Award Number: 129619).

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Authors and Affiliations

  1. King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard, Jeddah, Saudi Arabia

    Ahmed Almazroa

  2. School of Optometry, University of Waterloo, Waterloo, Canada

    Ahmed Almazroa & Vasudevan Lakshminarayanan

  3. Bin Rushed Ophthalmic Center, Riyadh, Saudi Arabia

    Sami Alodhayb

  4. Ophthalmology Department, King Saud University, Riyadh, Saudi Arabia

    Essameldin Osman

  5. Ophthalmology Department, Magrabi Eye and Ear Center, Riyadh, Saudi Arabia

    Eslam Ramadan

  6. Ophthalmology Department, King Fahad Medical City, Riyadh, Saudi Arabia

    Mohammed Hummadi

  7. Alhokama Eye Specialist Center, Riyadh, Saudi Arabia

    Mohammed Dlaim

  8. Ophthalmology Department, AlJazeera Hospital, Riyadh, Saudi Arabia

    Muhannad Alkatee

  9. Department of Electrical and Computer Engineering, Ryerson University, 350 Victoria St, Toronto, ON, M5B 2K3, Canada

    Kaamran Raahemifar

Authors
  1. Ahmed Almazroa
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  2. Sami Alodhayb
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  3. Essameldin Osman
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  4. Eslam Ramadan
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  5. Mohammed Hummadi
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  6. Mohammed Dlaim
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  7. Muhannad Alkatee
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  8. Kaamran Raahemifar
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  9. Vasudevan Lakshminarayanan
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Corresponding author

Correspondence to Kaamran Raahemifar.

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Almazroa, A., Alodhayb, S., Osman, E. et al. Agreement among ophthalmologists in marking the optic disc and optic cup in fundus images. Int Ophthalmol 37, 701–717 (2017). https://doi.org/10.1007/s10792-016-0329-x

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  • DOI: https://doi.org/10.1007/s10792-016-0329-x

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