Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/33538 |
Resumo: | In this study, we aimed to evaluate the intra/inter-session and intra/inter-observer variability of manual segmentation of thickness of the pre-lens tear film, contact lens (CL), post-lens tear film, epithelium, bowman’s layer, stroma and the whole cornea and CLs with a flat and a steep fit, using a commercial high-resolution spectral domain optical coherence tomographer (OCT). Two different observers obtained three repeated measures in two separate sessions. A high correlation was found between the values obtained by the two different observers, except for the thinner layers, epithelium, and Bowman’s layer. Inter-observer analysis showed a high consistency in the measurements obtained by both observers (r 2 ≥ 0.80; p < 0.001) for the thicker layers: CL, stroma, and total cornea. Intra-observer analysis of measurements obtained by each observer within the same session displayed no statistically significant differences between the three repeated measures for both observers (p > 0.05). The present results suggest that manual segmentation of anterior segment OCT images in CL wearers provides acceptable levels of repeatability between observers and between different sessions for the thinner layers, while presenting a high level of repeatability for the thicker layers. |
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Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCTOptical coherence tomographyManual layer segmentationRepeatabilityCorneal thicknessEpithelial thicknessTear film thicknessScience & TechnologyIn this study, we aimed to evaluate the intra/inter-session and intra/inter-observer variability of manual segmentation of thickness of the pre-lens tear film, contact lens (CL), post-lens tear film, epithelium, bowman’s layer, stroma and the whole cornea and CLs with a flat and a steep fit, using a commercial high-resolution spectral domain optical coherence tomographer (OCT). Two different observers obtained three repeated measures in two separate sessions. A high correlation was found between the values obtained by the two different observers, except for the thinner layers, epithelium, and Bowman’s layer. Inter-observer analysis showed a high consistency in the measurements obtained by both observers (r 2 ≥ 0.80; p < 0.001) for the thicker layers: CL, stroma, and total cornea. Intra-observer analysis of measurements obtained by each observer within the same session displayed no statistically significant differences between the three repeated measures for both observers (p > 0.05). The present results suggest that manual segmentation of anterior segment OCT images in CL wearers provides acceptable levels of repeatability between observers and between different sessions for the thinner layers, while presenting a high level of repeatability for the thicker layers.This work was supported by FEDER through the COMPETE Program and by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Project PEST-C/FIS/UI607/2011. Supported in part by research grants to A. Cervino from the Universitat de Valencia (UV-AE-20070225), the "Jose Castillejo" Research Grant from the Spanish Ministry of Science and Technology (JC2008-00078) and the Spanish Network for Research in Optometry (SAF2008-01114-E).Taylor and FrancisUniversidade do MinhoRodrigues, PatríciaFerreira, Daniela LopesCatarino, A.Cerviño, AlejandroQueirós, A.González-Méijome, José Manuel20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/33538engRodrigues, Patrícia; Lopes-Ferreira, Daniela; Catarino, Andreia; Cervino, Alejandro; Queirós, Antonio; González-Méijome, José Manuel. Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT, Journal of Modern Optics, 1, 1-8, 2015.0950-034010.1080/09500340.2014.995733info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:26:25ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT |
title |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT |
spellingShingle |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT Rodrigues, Patrícia Optical coherence tomography Manual layer segmentation Repeatability Corneal thickness Epithelial thickness Tear film thickness Science & Technology |
title_short |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT |
title_full |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT |
title_fullStr |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT |
title_full_unstemmed |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT |
title_sort |
Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT |
author |
Rodrigues, Patrícia |
author_facet |
Rodrigues, Patrícia Ferreira, Daniela Lopes Catarino, A. Cerviño, Alejandro Queirós, A. González-Méijome, José Manuel |
author_role |
author |
author2 |
Ferreira, Daniela Lopes Catarino, A. Cerviño, Alejandro Queirós, A. González-Méijome, José Manuel |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Rodrigues, Patrícia Ferreira, Daniela Lopes Catarino, A. Cerviño, Alejandro Queirós, A. González-Méijome, José Manuel |
dc.subject.por.fl_str_mv |
Optical coherence tomography Manual layer segmentation Repeatability Corneal thickness Epithelial thickness Tear film thickness Science & Technology |
topic |
Optical coherence tomography Manual layer segmentation Repeatability Corneal thickness Epithelial thickness Tear film thickness Science & Technology |
description |
In this study, we aimed to evaluate the intra/inter-session and intra/inter-observer variability of manual segmentation of thickness of the pre-lens tear film, contact lens (CL), post-lens tear film, epithelium, bowman’s layer, stroma and the whole cornea and CLs with a flat and a steep fit, using a commercial high-resolution spectral domain optical coherence tomographer (OCT). Two different observers obtained three repeated measures in two separate sessions. A high correlation was found between the values obtained by the two different observers, except for the thinner layers, epithelium, and Bowman’s layer. Inter-observer analysis showed a high consistency in the measurements obtained by both observers (r 2 ≥ 0.80; p < 0.001) for the thicker layers: CL, stroma, and total cornea. Intra-observer analysis of measurements obtained by each observer within the same session displayed no statistically significant differences between the three repeated measures for both observers (p > 0.05). The present results suggest that manual segmentation of anterior segment OCT images in CL wearers provides acceptable levels of repeatability between observers and between different sessions for the thinner layers, while presenting a high level of repeatability for the thicker layers. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/33538 |
url |
http://hdl.handle.net/1822/33538 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Rodrigues, Patrícia; Lopes-Ferreira, Daniela; Catarino, Andreia; Cervino, Alejandro; Queirós, Antonio; González-Méijome, José Manuel. Reliability of manual segmentation of cornea, contact lens and tear film using a high-resolution OCT, Journal of Modern Optics, 1, 1-8, 2015. 0950-0340 10.1080/09500340.2014.995733 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Taylor and Francis |
publisher.none.fl_str_mv |
Taylor and Francis |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
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repository.mail.fl_str_mv |
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1777303757937180672 |