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Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis
PURPOSE: Foveal center marking is a key step in retinal image analysis. We investigated the discordance between the adaptive optics (AO) montage center (AMC) and the foveal pit center (FPC) and its implications for cone mosaic analysis using a commercial flood-illumination AO camera. METHODS: Thirty...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Association for Research in Vision and Ophthalmology
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034713/ https://www.ncbi.nlm.nih.gov/pubmed/35446344 http://dx.doi.org/10.1167/iovs.63.4.12 |
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author | Roshandel, Danial Sampson, Danuta M. Mackey, David A. Chen, Fred K. |
author_facet | Roshandel, Danial Sampson, Danuta M. Mackey, David A. Chen, Fred K. |
author_sort | Roshandel, Danial |
collection | PubMed |
description | PURPOSE: Foveal center marking is a key step in retinal image analysis. We investigated the discordance between the adaptive optics (AO) montage center (AMC) and the foveal pit center (FPC) and its implications for cone mosaic analysis using a commercial flood-illumination AO camera. METHODS: Thirty eyes of 30 individuals (including 15 healthy and 15 patients with rod–cone dystrophy) were included. Spectral-domain optical coherence tomography was used to determine the FPC, and flood-illumination AO imaging was performed with overlapping image frames to create an AO montage. The AMC was determined by averaging the (0,0) coordinates in the four paracentral overlapping AO image frames. Cone mosaic measurements at various retinal eccentricities were compared between corresponding retinal loci relative to the AMC or FPC. RESULTS: AMCs were located temporally to the FPCs in 14 of 15 eyes in both groups. The average AMC–FPC discordance was 0.85° among healthy controls and 0.33° among patients with rod-cone dystrophy (P < 0.05). The distance of the AMC from the FPC was a significant determinant of the cone density (β estimate = 218 cells/deg(2)/deg; 95% confidence interval [CI], 107–330; P < 0.001) and inter-cone distance (β estimate = 0.28 arcmin/deg; 95% CI, 0.15–0.40; P < 0.001), after adjustment for age, sex, axial length, spherical equivalent, eccentricity, and disease status. CONCLUSIONS: There is a marked mismatch between the AMC and FPC in healthy eyes that may be modified by disease process such as rod–cone dystrophy. We recommend users of AO imaging systems carefully align the AO montage with a foveal anatomical landmark, such as the FPC, to ensure precise and reproducible localization of the eccentricities and regions of interest for cone mosaic analysis. |
format | Online Article Text |
id | pubmed-9034713 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Association for Research in Vision and Ophthalmology |
record_format | MEDLINE/PubMed |
spelling | pubmed-90347132022-04-24 Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis Roshandel, Danial Sampson, Danuta M. Mackey, David A. Chen, Fred K. Invest Ophthalmol Vis Sci Retina PURPOSE: Foveal center marking is a key step in retinal image analysis. We investigated the discordance between the adaptive optics (AO) montage center (AMC) and the foveal pit center (FPC) and its implications for cone mosaic analysis using a commercial flood-illumination AO camera. METHODS: Thirty eyes of 30 individuals (including 15 healthy and 15 patients with rod–cone dystrophy) were included. Spectral-domain optical coherence tomography was used to determine the FPC, and flood-illumination AO imaging was performed with overlapping image frames to create an AO montage. The AMC was determined by averaging the (0,0) coordinates in the four paracentral overlapping AO image frames. Cone mosaic measurements at various retinal eccentricities were compared between corresponding retinal loci relative to the AMC or FPC. RESULTS: AMCs were located temporally to the FPCs in 14 of 15 eyes in both groups. The average AMC–FPC discordance was 0.85° among healthy controls and 0.33° among patients with rod-cone dystrophy (P < 0.05). The distance of the AMC from the FPC was a significant determinant of the cone density (β estimate = 218 cells/deg(2)/deg; 95% confidence interval [CI], 107–330; P < 0.001) and inter-cone distance (β estimate = 0.28 arcmin/deg; 95% CI, 0.15–0.40; P < 0.001), after adjustment for age, sex, axial length, spherical equivalent, eccentricity, and disease status. CONCLUSIONS: There is a marked mismatch between the AMC and FPC in healthy eyes that may be modified by disease process such as rod–cone dystrophy. We recommend users of AO imaging systems carefully align the AO montage with a foveal anatomical landmark, such as the FPC, to ensure precise and reproducible localization of the eccentricities and regions of interest for cone mosaic analysis. The Association for Research in Vision and Ophthalmology 2022-04-21 /pmc/articles/PMC9034713/ /pubmed/35446344 http://dx.doi.org/10.1167/iovs.63.4.12 Text en Copyright 2022 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. |
spellingShingle | Retina Roshandel, Danial Sampson, Danuta M. Mackey, David A. Chen, Fred K. Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis |
title | Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis |
title_full | Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis |
title_fullStr | Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis |
title_full_unstemmed | Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis |
title_short | Impact of Reference Center Choice on Adaptive Optics Imaging Cone Mosaic Analysis |
title_sort | impact of reference center choice on adaptive optics imaging cone mosaic analysis |
topic | Retina |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034713/ https://www.ncbi.nlm.nih.gov/pubmed/35446344 http://dx.doi.org/10.1167/iovs.63.4.12 |
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