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Colour slides or digital photography in diabetes screening – a comparison
Purpose: The aim of this study was to compare digital images with slides in detecting and grading diabetic retinopathy, and to assess the retinopathy screening performed by ophthalmic nurses. Method: 283 consecutive patients were examined using digital colour and redfree photography (Topcon Imagenet...
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| Published in: | Acta ophthalmologica Scandinavica 2000-04, Vol.78 (2), p.164-168 |
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| Main Authors: | , , , , , , |
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| container_end_page | 168 |
| container_issue | 2 |
| container_start_page | 164 |
| container_title | Acta ophthalmologica Scandinavica |
| container_volume | 78 |
| creator | Henricsson, Marianne Karlsson, Cathrin Ekholm, Leif Kaikkonen, Pirjo Sellman, Anders Steffert, Eva Tyrberg, Maria |
| description | Purpose: The aim of this study was to compare digital images with slides in detecting and grading diabetic retinopathy, and to assess the retinopathy screening performed by ophthalmic nurses.
Method: 283 consecutive patients were examined using digital colour and redfree photography (Topcon Imagenet System 1.53) and 35 mm slides (Topcon TRC‐50 VT fundus camera, Kodachrome 64 colour film). The images were graded by the worst eye according to the Wisconsin classification by an ophthalmologist and ophthalmic nurse independently.
Results: There was exact agreement between grades obtained from the colour slides and the digital colour images in 82% (weighted kappa 0.88; 95% CI 0.80–0.96), and in 85% when redfree images were used as an adjunct to the digital colour images. There was a tendency towards undergrading of the digital colour images and overgrading of the digital redfree images, compared with the colour slides. Inter‐ and intragrader agreement (weighted kappa) varied between 0.77 and 0.84 for digital photography and between 0.88 and 0.90 for colour slides.
Conclusion: Good to excellent agreement was found between the grading of colour slides and digital colour images, the latter, however, associated with a slightly lower reliability. The adjunct of redfree images seemed to facilitate the detection of retinopathic lesions. |
| doi_str_mv | 10.1034/j.1600-0420.2000.078002164.x |
| format | article |
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Method: 283 consecutive patients were examined using digital colour and redfree photography (Topcon Imagenet System 1.53) and 35 mm slides (Topcon TRC‐50 VT fundus camera, Kodachrome 64 colour film). The images were graded by the worst eye according to the Wisconsin classification by an ophthalmologist and ophthalmic nurse independently.
Results: There was exact agreement between grades obtained from the colour slides and the digital colour images in 82% (weighted kappa 0.88; 95% CI 0.80–0.96), and in 85% when redfree images were used as an adjunct to the digital colour images. There was a tendency towards undergrading of the digital colour images and overgrading of the digital redfree images, compared with the colour slides. Inter‐ and intragrader agreement (weighted kappa) varied between 0.77 and 0.84 for digital photography and between 0.88 and 0.90 for colour slides.
Conclusion: Good to excellent agreement was found between the grading of colour slides and digital colour images, the latter, however, associated with a slightly lower reliability. The adjunct of redfree images seemed to facilitate the detection of retinopathic lesions.</description><identifier>ISSN: 1395-3907</identifier><identifier>EISSN: 1600-0420</identifier><identifier>DOI: 10.1034/j.1600-0420.2000.078002164.x</identifier><identifier>PMID: 10794249</identifier><language>eng</language><publisher>Copenhagen: Munksgaard International Publishers</publisher><subject>Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; colour slides ; diabetic retinopathy ; Diabetic Retinopathy - classification ; Diabetic Retinopathy - diagnosis ; digital images ; Female ; Humans ; Male ; Middle Aged ; Observer Variation ; Photography - methods ; Reproducibility of Results ; screening ; Sensitivity and Specificity ; Signal Processing, Computer-Assisted</subject><ispartof>Acta ophthalmologica Scandinavica, 2000-04, Vol.78 (2), p.164-168</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3814-a1a235ac0aa18ce249cdd405dc6e77a48f769f6e459b15163b55bb54e9f92e323</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10794249$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Henricsson, Marianne</creatorcontrib><creatorcontrib>Karlsson, Cathrin</creatorcontrib><creatorcontrib>Ekholm, Leif</creatorcontrib><creatorcontrib>Kaikkonen, Pirjo</creatorcontrib><creatorcontrib>Sellman, Anders</creatorcontrib><creatorcontrib>Steffert, Eva</creatorcontrib><creatorcontrib>Tyrberg, Maria</creatorcontrib><title>Colour slides or digital photography in diabetes screening – a comparison</title><title>Acta ophthalmologica Scandinavica</title><addtitle>Acta Ophthalmol Scand</addtitle><description>Purpose: The aim of this study was to compare digital images with slides in detecting and grading diabetic retinopathy, and to assess the retinopathy screening performed by ophthalmic nurses.
Method: 283 consecutive patients were examined using digital colour and redfree photography (Topcon Imagenet System 1.53) and 35 mm slides (Topcon TRC‐50 VT fundus camera, Kodachrome 64 colour film). The images were graded by the worst eye according to the Wisconsin classification by an ophthalmologist and ophthalmic nurse independently.
Results: There was exact agreement between grades obtained from the colour slides and the digital colour images in 82% (weighted kappa 0.88; 95% CI 0.80–0.96), and in 85% when redfree images were used as an adjunct to the digital colour images. There was a tendency towards undergrading of the digital colour images and overgrading of the digital redfree images, compared with the colour slides. Inter‐ and intragrader agreement (weighted kappa) varied between 0.77 and 0.84 for digital photography and between 0.88 and 0.90 for colour slides.
Conclusion: Good to excellent agreement was found between the grading of colour slides and digital colour images, the latter, however, associated with a slightly lower reliability. The adjunct of redfree images seemed to facilitate the detection of retinopathic lesions.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Child</subject><subject>colour slides</subject><subject>diabetic retinopathy</subject><subject>Diabetic Retinopathy - classification</subject><subject>Diabetic Retinopathy - diagnosis</subject><subject>digital images</subject><subject>Female</subject><subject>Humans</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Observer Variation</subject><subject>Photography - methods</subject><subject>Reproducibility of Results</subject><subject>screening</subject><subject>Sensitivity and Specificity</subject><subject>Signal Processing, Computer-Assisted</subject><issn>1395-3907</issn><issn>1600-0420</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNqVkE1OwzAQRi0EoqVwBZQFYpcwjp04lthUVfkRlboA1pbjOK2rJA52Ktodd-CGnIRULYgtK489b76xHkJXGCIMhN6sIpwChEBjiGIAiIBlADFOabQ5QsPf5nFfE56EhAMboDPvVz3MIYtP0QAD4zSmfIieJrayaxf4yhTaB9YFhVmYTlZBu7SdXTjZLreBafpnmeuuR7xyWjemWQRfH5-BDJStW-mMt805Oill5fXF4Ryh17vpy-QhnM3vHyfjWahIhmkosYxJIhVIiTOl-2-ooqCQFCrVjEmalSzlZappwnOc4JTkSZLnCdW85LEmMRmh631u6-zbWvtO1MYrXVWy0XbtBcOQpYzxHrzdg8pZ750uRetMLd1WYBA7mWIldr7EzpfYyRS_MsWmH7887FnntS7-DO_t9cB0D7ybSm__FS7G8-efG_kGCj6FgQ</recordid><startdate>200004</startdate><enddate>200004</enddate><creator>Henricsson, Marianne</creator><creator>Karlsson, Cathrin</creator><creator>Ekholm, Leif</creator><creator>Kaikkonen, Pirjo</creator><creator>Sellman, Anders</creator><creator>Steffert, Eva</creator><creator>Tyrberg, Maria</creator><general>Munksgaard International Publishers</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>200004</creationdate><title>Colour slides or digital photography in diabetes screening – a comparison</title><author>Henricsson, Marianne ; Karlsson, Cathrin ; Ekholm, Leif ; Kaikkonen, Pirjo ; Sellman, Anders ; Steffert, Eva ; Tyrberg, Maria</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3814-a1a235ac0aa18ce249cdd405dc6e77a48f769f6e459b15163b55bb54e9f92e323</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Child</topic><topic>colour slides</topic><topic>diabetic retinopathy</topic><topic>Diabetic Retinopathy - classification</topic><topic>Diabetic Retinopathy - diagnosis</topic><topic>digital images</topic><topic>Female</topic><topic>Humans</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Observer Variation</topic><topic>Photography - methods</topic><topic>Reproducibility of Results</topic><topic>screening</topic><topic>Sensitivity and Specificity</topic><topic>Signal Processing, Computer-Assisted</topic><toplevel>online_resources</toplevel><creatorcontrib>Henricsson, Marianne</creatorcontrib><creatorcontrib>Karlsson, Cathrin</creatorcontrib><creatorcontrib>Ekholm, Leif</creatorcontrib><creatorcontrib>Kaikkonen, Pirjo</creatorcontrib><creatorcontrib>Sellman, Anders</creatorcontrib><creatorcontrib>Steffert, Eva</creatorcontrib><creatorcontrib>Tyrberg, Maria</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Acta ophthalmologica Scandinavica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Henricsson, Marianne</au><au>Karlsson, Cathrin</au><au>Ekholm, Leif</au><au>Kaikkonen, Pirjo</au><au>Sellman, Anders</au><au>Steffert, Eva</au><au>Tyrberg, Maria</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Colour slides or digital photography in diabetes screening – a comparison</atitle><jtitle>Acta ophthalmologica Scandinavica</jtitle><addtitle>Acta Ophthalmol Scand</addtitle><date>2000-04</date><risdate>2000</risdate><volume>78</volume><issue>2</issue><spage>164</spage><epage>168</epage><pages>164-168</pages><issn>1395-3907</issn><eissn>1600-0420</eissn><abstract>Purpose: The aim of this study was to compare digital images with slides in detecting and grading diabetic retinopathy, and to assess the retinopathy screening performed by ophthalmic nurses.
Method: 283 consecutive patients were examined using digital colour and redfree photography (Topcon Imagenet System 1.53) and 35 mm slides (Topcon TRC‐50 VT fundus camera, Kodachrome 64 colour film). The images were graded by the worst eye according to the Wisconsin classification by an ophthalmologist and ophthalmic nurse independently.
Results: There was exact agreement between grades obtained from the colour slides and the digital colour images in 82% (weighted kappa 0.88; 95% CI 0.80–0.96), and in 85% when redfree images were used as an adjunct to the digital colour images. There was a tendency towards undergrading of the digital colour images and overgrading of the digital redfree images, compared with the colour slides. Inter‐ and intragrader agreement (weighted kappa) varied between 0.77 and 0.84 for digital photography and between 0.88 and 0.90 for colour slides.
Conclusion: Good to excellent agreement was found between the grading of colour slides and digital colour images, the latter, however, associated with a slightly lower reliability. The adjunct of redfree images seemed to facilitate the detection of retinopathic lesions.</abstract><cop>Copenhagen</cop><pub>Munksgaard International Publishers</pub><pmid>10794249</pmid><doi>10.1034/j.1600-0420.2000.078002164.x</doi><tpages>5</tpages></addata></record> |
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| ispartof | Acta ophthalmologica Scandinavica, 2000-04, Vol.78 (2), p.164-168 |
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| language | eng |
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| source | Wiley |
| subjects | Adolescent Adult Aged Aged, 80 and over Child colour slides diabetic retinopathy Diabetic Retinopathy - classification Diabetic Retinopathy - diagnosis digital images Female Humans Male Middle Aged Observer Variation Photography - methods Reproducibility of Results screening Sensitivity and Specificity Signal Processing, Computer-Assisted |
| title | Colour slides or digital photography in diabetes screening – a comparison |
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