Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.

<h4>Purpose</h4>To investigate the reproducibility for the iridocorneal angle evaluations using the pictures obtained by a gonioscopic camera, Gonioscope GS-1 (Nidek Co., Gamagori, Japan).<h4>Methods</h4>The pragmatic within-patient comparative diagnostic evaluations for 140...

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Autores principales:	Masato Matsuo, Shiro Mizoue, Koji Nitta, Yasuyuki Takai, Kazunobu Sugihara, Masaki Tanito
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/16a6a48037aa47eba00ade49598cc9bd
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spelling	oai:doaj.org-article:16a6a48037aa47eba00ade49598cc9bd2021-11-25T06:19:16ZIntraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.1932-620310.1371/journal.pone.0251249https://doaj.org/article/16a6a48037aa47eba00ade49598cc9bd2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251249https://doaj.org/toc/1932-6203<h4>Purpose</h4>To investigate the reproducibility for the iridocorneal angle evaluations using the pictures obtained by a gonioscopic camera, Gonioscope GS-1 (Nidek Co., Gamagori, Japan).<h4>Methods</h4>The pragmatic within-patient comparative diagnostic evaluations for 140 GS-1 gonio-images obtained from 35 eyes of 35 patients at four ocular sectors (superior, temporal, inferior, and nasal angles) were conducted by five independent ophthalmologists including three glaucoma specialists in a masked fashion twice, 1 week apart. We undertook the observer agreement and correlation analyses of Scheie's angle width and pigmentation gradings and detection of peripheral anterior synechia and Sampaolesi line.<h4>Results</h4>The respective Fleiss' kappa values for the four elements between manual gonioscopy and automated gonioscope by the glaucoma specialist were 0.22, 0.40, 0.32 and 0.58. Additionally, the respective intraobserver agreements for the four elements by the glaucoma specialist each were 0.32 to 0.65, 0.24 to 0.71, 0.35 to 0.70, and 0.20 to 0.76; the Fleiss' kappa coefficients for the four elements among the three glaucoma specialists were, respectively, 0.31, 0.38, 0.31, and 0.17; the Fleiss' kappa coefficients for the angle width and pigmentation gradings between the two glaucoma specialists each were 0.30 to 0.35, and 0.29 to 0.43, respectively. Overall, the Kendall's tau coefficients for the angle gradings reflected the positive correlations in the evaluations.<h4>Conclusion</h4>Our findings suggested slight-to-substantial intraobserver agreement and slight-to-fair (among the three) or fair-to-moderate (between the two each) interobserver agreement for the angle assessments using GS-1 gonio-photos even by glaucoma specialists. Sufficient training and a solid consensus should allow us to perform more reliable angle assessments using gonio-photos with high reproducibility.Masato MatsuoShiro MizoueKoji NittaYasuyuki TakaiKazunobu SugiharaMasaki TanitoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251249 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Masato Matsuo Shiro Mizoue Koji Nitta Yasuyuki Takai Kazunobu Sugihara Masaki Tanito Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.
description	<h4>Purpose</h4>To investigate the reproducibility for the iridocorneal angle evaluations using the pictures obtained by a gonioscopic camera, Gonioscope GS-1 (Nidek Co., Gamagori, Japan).<h4>Methods</h4>The pragmatic within-patient comparative diagnostic evaluations for 140 GS-1 gonio-images obtained from 35 eyes of 35 patients at four ocular sectors (superior, temporal, inferior, and nasal angles) were conducted by five independent ophthalmologists including three glaucoma specialists in a masked fashion twice, 1 week apart. We undertook the observer agreement and correlation analyses of Scheie's angle width and pigmentation gradings and detection of peripheral anterior synechia and Sampaolesi line.<h4>Results</h4>The respective Fleiss' kappa values for the four elements between manual gonioscopy and automated gonioscope by the glaucoma specialist were 0.22, 0.40, 0.32 and 0.58. Additionally, the respective intraobserver agreements for the four elements by the glaucoma specialist each were 0.32 to 0.65, 0.24 to 0.71, 0.35 to 0.70, and 0.20 to 0.76; the Fleiss' kappa coefficients for the four elements among the three glaucoma specialists were, respectively, 0.31, 0.38, 0.31, and 0.17; the Fleiss' kappa coefficients for the angle width and pigmentation gradings between the two glaucoma specialists each were 0.30 to 0.35, and 0.29 to 0.43, respectively. Overall, the Kendall's tau coefficients for the angle gradings reflected the positive correlations in the evaluations.<h4>Conclusion</h4>Our findings suggested slight-to-substantial intraobserver agreement and slight-to-fair (among the three) or fair-to-moderate (between the two each) interobserver agreement for the angle assessments using GS-1 gonio-photos even by glaucoma specialists. Sufficient training and a solid consensus should allow us to perform more reliable angle assessments using gonio-photos with high reproducibility.
format	article
author	Masato Matsuo Shiro Mizoue Koji Nitta Yasuyuki Takai Kazunobu Sugihara Masaki Tanito
author_facet	Masato Matsuo Shiro Mizoue Koji Nitta Yasuyuki Takai Kazunobu Sugihara Masaki Tanito
author_sort	Masato Matsuo
title	Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.
title_short	Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.
title_full	Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.
title_fullStr	Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.
title_full_unstemmed	Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.
title_sort	intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/16a6a48037aa47eba00ade49598cc9bd
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Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.

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