Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images

Thomas Lee Torp, Ditte Borup Jakobsen, Jakob Grauslund

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

Resumé

Purpose Panretinal photocoagulation (PRP) is the gold-standard treatment for proliferative diabetic retinopathy (PDR), but evaluation of the coverage of PRP after treatment can be difficult and is not standardized. Ultra-wide field (UWF) color fundus images may offer an objective alternative to subjective evaluation of PRP-coverage. We propose a new model to quantify the coverage of PRP treatment in each retinal quadrant by UWF images. The purpose of the study was to evaluate the intra- and inter-grader reliability of the model. Methods The retinal coverage of PRP in each quadrant of the retina on 20 UWF color fundus images in patients treated for PDR was quantified by two independent graders (grader A and B), and intra- and inter-grader association (Kappa) were calculated. In each retinal quadrant, OPTOS UWF color fundus images (Optomap, Optos PLC., Dunfermline, Scotland, UK) were used, and each grader evaluated the total retinal area covered by laser. The graders categorized the amount of laser visible on the retina into four categories (no visible laser spots, <50%, 51-75%, 76-100%). Results The total retinal area covered by laser was 76-100% (for both graders). Intra-grader association was 0.715 and 0.464 for Grader A and Grader B, respectively, and inter-grader association was substantial at 0.627. Conclusions Using Optos UWF images, we were able to achieve high intra- and inter-grader reliability for the quantification of the retinal area covered with PRP in patients with PDR. This might aid clinicians when comparing PRP coverage between patients.
OriginalsprogEngelsk
Publikationsdato29. sep. 2017
Antal sider1
StatusUdgivet - 29. sep. 2017
BegivenhedXXth Congress of the European Association for Vision and Eye Research - Nice, Frankrig
Varighed: 27. sep. 201730. sep. 2017
Konferencens nummer: 20

Konference

KonferenceXXth Congress of the European Association for Vision and Eye Research
Nummer20
LandFrankrig
ByNice
Periode27/09/201730/09/2017

Citer dette

Torp, T. L., Borup Jakobsen, D., & Grauslund, J. (2017). Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images. 1755-3768. Poster session præsenteret på XXth Congress of the European Association for Vision and Eye Research, Nice, Frankrig.
Torp, Thomas Lee ; Borup Jakobsen, Ditte ; Grauslund, Jakob. / Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images. Poster session præsenteret på XXth Congress of the European Association for Vision and Eye Research, Nice, Frankrig.1 s.
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title = "Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images",
abstract = "Purpose Panretinal photocoagulation (PRP) is the gold-standard treatment for proliferative diabetic retinopathy (PDR), but evaluation of the coverage of PRP after treatment can be difficult and is not standardized. Ultra-wide field (UWF) color fundus images may offer an objective alternative to subjective evaluation of PRP-coverage. We propose a new model to quantify the coverage of PRP treatment in each retinal quadrant by UWF images. The purpose of the study was to evaluate the intra- and inter-grader reliability of the model. Methods The retinal coverage of PRP in each quadrant of the retina on 20 UWF color fundus images in patients treated for PDR was quantified by two independent graders (grader A and B), and intra- and inter-grader association (Kappa) were calculated. In each retinal quadrant, OPTOS UWF color fundus images (Optomap, Optos PLC., Dunfermline, Scotland, UK) were used, and each grader evaluated the total retinal area covered by laser. The graders categorized the amount of laser visible on the retina into four categories (no visible laser spots, <50{\%}, 51-75{\%}, 76-100{\%}). Results The total retinal area covered by laser was 76-100{\%} (for both graders). Intra-grader association was 0.715 and 0.464 for Grader A and Grader B, respectively, and inter-grader association was substantial at 0.627. Conclusions Using Optos UWF images, we were able to achieve high intra- and inter-grader reliability for the quantification of the retinal area covered with PRP in patients with PDR. This might aid clinicians when comparing PRP coverage between patients.",
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language = "English",
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note = "null ; Conference date: 27-09-2017 Through 30-09-2017",

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Torp, TL, Borup Jakobsen, D & Grauslund, J 2017, 'Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images', XXth Congress of the European Association for Vision and Eye Research, Nice, Frankrig, 27/09/2017 - 30/09/2017 s. 1755-3768.

Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images. / Torp, Thomas Lee; Borup Jakobsen, Ditte; Grauslund, Jakob.

2017. 1755-3768 Poster session præsenteret på XXth Congress of the European Association for Vision and Eye Research, Nice, Frankrig.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

TY - CONF

T1 - Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images

AU - Torp, Thomas Lee

AU - Borup Jakobsen, Ditte

AU - Grauslund, Jakob

PY - 2017/9/29

Y1 - 2017/9/29

N2 - Purpose Panretinal photocoagulation (PRP) is the gold-standard treatment for proliferative diabetic retinopathy (PDR), but evaluation of the coverage of PRP after treatment can be difficult and is not standardized. Ultra-wide field (UWF) color fundus images may offer an objective alternative to subjective evaluation of PRP-coverage. We propose a new model to quantify the coverage of PRP treatment in each retinal quadrant by UWF images. The purpose of the study was to evaluate the intra- and inter-grader reliability of the model. Methods The retinal coverage of PRP in each quadrant of the retina on 20 UWF color fundus images in patients treated for PDR was quantified by two independent graders (grader A and B), and intra- and inter-grader association (Kappa) were calculated. In each retinal quadrant, OPTOS UWF color fundus images (Optomap, Optos PLC., Dunfermline, Scotland, UK) were used, and each grader evaluated the total retinal area covered by laser. The graders categorized the amount of laser visible on the retina into four categories (no visible laser spots, <50%, 51-75%, 76-100%). Results The total retinal area covered by laser was 76-100% (for both graders). Intra-grader association was 0.715 and 0.464 for Grader A and Grader B, respectively, and inter-grader association was substantial at 0.627. Conclusions Using Optos UWF images, we were able to achieve high intra- and inter-grader reliability for the quantification of the retinal area covered with PRP in patients with PDR. This might aid clinicians when comparing PRP coverage between patients.

AB - Purpose Panretinal photocoagulation (PRP) is the gold-standard treatment for proliferative diabetic retinopathy (PDR), but evaluation of the coverage of PRP after treatment can be difficult and is not standardized. Ultra-wide field (UWF) color fundus images may offer an objective alternative to subjective evaluation of PRP-coverage. We propose a new model to quantify the coverage of PRP treatment in each retinal quadrant by UWF images. The purpose of the study was to evaluate the intra- and inter-grader reliability of the model. Methods The retinal coverage of PRP in each quadrant of the retina on 20 UWF color fundus images in patients treated for PDR was quantified by two independent graders (grader A and B), and intra- and inter-grader association (Kappa) were calculated. In each retinal quadrant, OPTOS UWF color fundus images (Optomap, Optos PLC., Dunfermline, Scotland, UK) were used, and each grader evaluated the total retinal area covered by laser. The graders categorized the amount of laser visible on the retina into four categories (no visible laser spots, <50%, 51-75%, 76-100%). Results The total retinal area covered by laser was 76-100% (for both graders). Intra-grader association was 0.715 and 0.464 for Grader A and Grader B, respectively, and inter-grader association was substantial at 0.627. Conclusions Using Optos UWF images, we were able to achieve high intra- and inter-grader reliability for the quantification of the retinal area covered with PRP in patients with PDR. This might aid clinicians when comparing PRP coverage between patients.

M3 - Poster

SP - 1755

EP - 3768

ER -

Torp TL, Borup Jakobsen D, Grauslund J. Intra- and inter-grader agreement in grading of coverage of panretinal photocoagulation by ultra-wide field color fundus images. 2017. Poster session præsenteret på XXth Congress of the European Association for Vision and Eye Research, Nice, Frankrig.