Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Arquivos brasileiros de oftalmologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492021000600531 |
Resumo: | ABSTRACT Purpose: To compare the quality of retinal images captured with a smartphone-based, handheld fundus camera with that of retinal images captured with a commercial fundus camera and to analyze their agreement in determining the cup-to-disc ratio for a cohort of ophthalmological patients. Methods: A total of 50 patients from a secondary ophthalmic outpatient service center underwent a bilateral fundus examination under mydriasis with a smartphone-based, handheld fundus camera and with a commercial fundus camera (4 images/patient by each). Two experienced ophthalmologists evaluated all the fundus images and graded them on the Likert 1-5 scale for quality. Multivariate regression analyses was then performed to evaluate the factors associated with the image quality. Two masked ophthalmologists determined the vertical cup-to-disc ratio of each fundus image, and both the intraobserver (between devices) and interobserver agreement between them was calculated. Results: Ninety-eight images from 49 patients were processed in this study for their quality analysis. Ten images from five patients (four from commercial fundus camera and one from smartphone-based, handheld fundus camera) were not included in the analyses due to their extremely poor quality. The medians [interquartile interval] of the image quality were not significantly different between those from the smartphone-based, handheld fundus camera and from the commercial fundus camera (4 [4-5] versus 4 [3-4] respectively, p=0.06); however, both the images captured with the commercial fundus camera and the presence of media opacity presented a significant negative correlation with the image quality. Both the intraobserver [intraclass correlation coefficient (ICC)=0.82, p<0.001 and 0.83, p<0.001, for examiners 1 and 2, respectively] and interobserver (ICC=0.70, p=0.001 and 0.81; p<0.001, for smartphone-based handheld fundus camera and commercial fundus camera, respectively) agreements were excellent and statistically significant. Conclusions: Our results thus indicate that the smartphone-based, handheld fundus camera yields an image quality similar to that from a commercial fundus camera, with significant agreement in the cup-to-disc ratios between them. In addition to the good outcomes recorded, the smartphone-based, handheld fundus camera offers the advantages of portability and low-cost to serve as an alternative for fundus documentation for future telemedicine approaches in medical interventions. |
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Arquivos brasileiros de oftalmologia (Online) |
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Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve headPhotography/instrumentationSmartphoneOptic nerveTelemedicineABSTRACT Purpose: To compare the quality of retinal images captured with a smartphone-based, handheld fundus camera with that of retinal images captured with a commercial fundus camera and to analyze their agreement in determining the cup-to-disc ratio for a cohort of ophthalmological patients. Methods: A total of 50 patients from a secondary ophthalmic outpatient service center underwent a bilateral fundus examination under mydriasis with a smartphone-based, handheld fundus camera and with a commercial fundus camera (4 images/patient by each). Two experienced ophthalmologists evaluated all the fundus images and graded them on the Likert 1-5 scale for quality. Multivariate regression analyses was then performed to evaluate the factors associated with the image quality. Two masked ophthalmologists determined the vertical cup-to-disc ratio of each fundus image, and both the intraobserver (between devices) and interobserver agreement between them was calculated. Results: Ninety-eight images from 49 patients were processed in this study for their quality analysis. Ten images from five patients (four from commercial fundus camera and one from smartphone-based, handheld fundus camera) were not included in the analyses due to their extremely poor quality. The medians [interquartile interval] of the image quality were not significantly different between those from the smartphone-based, handheld fundus camera and from the commercial fundus camera (4 [4-5] versus 4 [3-4] respectively, p=0.06); however, both the images captured with the commercial fundus camera and the presence of media opacity presented a significant negative correlation with the image quality. Both the intraobserver [intraclass correlation coefficient (ICC)=0.82, p<0.001 and 0.83, p<0.001, for examiners 1 and 2, respectively] and interobserver (ICC=0.70, p=0.001 and 0.81; p<0.001, for smartphone-based handheld fundus camera and commercial fundus camera, respectively) agreements were excellent and statistically significant. Conclusions: Our results thus indicate that the smartphone-based, handheld fundus camera yields an image quality similar to that from a commercial fundus camera, with significant agreement in the cup-to-disc ratios between them. In addition to the good outcomes recorded, the smartphone-based, handheld fundus camera offers the advantages of portability and low-cost to serve as an alternative for fundus documentation for future telemedicine approaches in medical interventions.Conselho Brasileiro de Oftalmologia2021-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492021000600531Arquivos Brasileiros de Oftalmologia v.84 n.6 2021reponame:Arquivos brasileiros de oftalmologia (Online)instname:Conselho Brasileiro de Oftalmologia (CBO)instacron:CBO10.5935/0004-2749.20210080info:eu-repo/semantics/openAccessTitoneli,Carolina C.Filho,Marcio S.Lencione,DiegoVieira,Flavio PascoalStuchi,José AugustoPaula,Jayter S.eng2021-11-18T00:00:00Zoai:scielo:S0004-27492021000600531Revistahttp://aboonline.org.br/https://old.scielo.br/oai/scielo-oai.phpaboonline@cbo.com.br||abo@cbo.com.br1678-29250004-2749opendoar:2021-11-18T00:00Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO)false |
dc.title.none.fl_str_mv |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head |
title |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head |
spellingShingle |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head Titoneli,Carolina C. Photography/instrumentation Smartphone Optic nerve Telemedicine |
title_short |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head |
title_full |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head |
title_fullStr |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head |
title_full_unstemmed |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head |
title_sort |
Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head |
author |
Titoneli,Carolina C. |
author_facet |
Titoneli,Carolina C. Filho,Marcio S. Lencione,Diego Vieira,Flavio Pascoal Stuchi,José Augusto Paula,Jayter S. |
author_role |
author |
author2 |
Filho,Marcio S. Lencione,Diego Vieira,Flavio Pascoal Stuchi,José Augusto Paula,Jayter S. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Titoneli,Carolina C. Filho,Marcio S. Lencione,Diego Vieira,Flavio Pascoal Stuchi,José Augusto Paula,Jayter S. |
dc.subject.por.fl_str_mv |
Photography/instrumentation Smartphone Optic nerve Telemedicine |
topic |
Photography/instrumentation Smartphone Optic nerve Telemedicine |
description |
ABSTRACT Purpose: To compare the quality of retinal images captured with a smartphone-based, handheld fundus camera with that of retinal images captured with a commercial fundus camera and to analyze their agreement in determining the cup-to-disc ratio for a cohort of ophthalmological patients. Methods: A total of 50 patients from a secondary ophthalmic outpatient service center underwent a bilateral fundus examination under mydriasis with a smartphone-based, handheld fundus camera and with a commercial fundus camera (4 images/patient by each). Two experienced ophthalmologists evaluated all the fundus images and graded them on the Likert 1-5 scale for quality. Multivariate regression analyses was then performed to evaluate the factors associated with the image quality. Two masked ophthalmologists determined the vertical cup-to-disc ratio of each fundus image, and both the intraobserver (between devices) and interobserver agreement between them was calculated. Results: Ninety-eight images from 49 patients were processed in this study for their quality analysis. Ten images from five patients (four from commercial fundus camera and one from smartphone-based, handheld fundus camera) were not included in the analyses due to their extremely poor quality. The medians [interquartile interval] of the image quality were not significantly different between those from the smartphone-based, handheld fundus camera and from the commercial fundus camera (4 [4-5] versus 4 [3-4] respectively, p=0.06); however, both the images captured with the commercial fundus camera and the presence of media opacity presented a significant negative correlation with the image quality. Both the intraobserver [intraclass correlation coefficient (ICC)=0.82, p<0.001 and 0.83, p<0.001, for examiners 1 and 2, respectively] and interobserver (ICC=0.70, p=0.001 and 0.81; p<0.001, for smartphone-based handheld fundus camera and commercial fundus camera, respectively) agreements were excellent and statistically significant. Conclusions: Our results thus indicate that the smartphone-based, handheld fundus camera yields an image quality similar to that from a commercial fundus camera, with significant agreement in the cup-to-disc ratios between them. In addition to the good outcomes recorded, the smartphone-based, handheld fundus camera offers the advantages of portability and low-cost to serve as an alternative for fundus documentation for future telemedicine approaches in medical interventions. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492021000600531 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492021000600531 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0004-2749.20210080 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Conselho Brasileiro de Oftalmologia |
publisher.none.fl_str_mv |
Conselho Brasileiro de Oftalmologia |
dc.source.none.fl_str_mv |
Arquivos Brasileiros de Oftalmologia v.84 n.6 2021 reponame:Arquivos brasileiros de oftalmologia (Online) instname:Conselho Brasileiro de Oftalmologia (CBO) instacron:CBO |
instname_str |
Conselho Brasileiro de Oftalmologia (CBO) |
instacron_str |
CBO |
institution |
CBO |
reponame_str |
Arquivos brasileiros de oftalmologia (Online) |
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Arquivos brasileiros de oftalmologia (Online) |
repository.name.fl_str_mv |
Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO) |
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aboonline@cbo.com.br||abo@cbo.com.br |
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1754209031389446144 |