Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina Model

Several studies have noted a correlation between retinal degeneration and traumatic encephalopathy (TE) making the retina a leading candidate for detection and assessment. Scattering-angle-resolved optical coherence tomography (SAR-OCT) is a candidate imaging modality to detect sub-resolution change...

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Main Authors: Michael R Gardner, Ayesha S Rahman, Thomas E Milner, Henry G Rylander
Format: Article
Language:English
Published: SAGE Publishing 2019-03-01
Series:Journal of Experimental Neuroscience
Online Access:https://doi.org/10.1177/1179069519837564
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author Michael R Gardner
Ayesha S Rahman
Thomas E Milner
Henry G Rylander
author_facet Michael R Gardner
Ayesha S Rahman
Thomas E Milner
Henry G Rylander
author_sort Michael R Gardner
collection DOAJ
description Several studies have noted a correlation between retinal degeneration and traumatic encephalopathy (TE) making the retina a leading candidate for detection and assessment. Scattering-angle-resolved optical coherence tomography (SAR-OCT) is a candidate imaging modality to detect sub-resolution changes in retinal microstructure. SAR-OCT images of murine retinas that experience a hypoxic insult—euthanasia by isoflurane overdose—are presented. A total of 4 SAR-OCT measurement parameters are reported in 6 longitudinal experiments: blood flow volume fraction, total retinal thickness, reflectance index, and scattering angle. As each mouse expires, blood flow volume fraction decreases, total retinal thickness increases, reflectance index decreases, and scattering angle diversity increases. Contribution of the retinal vasculature to scattering angle diversity is discussed. Results of this study suggest the utility of SAR-OCT to measure TE using scattering angle diversity contrast in the retina.
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spelling doaj.art-af3f9442bf974b988167e00c0af3c3582022-12-22T02:36:19ZengSAGE PublishingJournal of Experimental Neuroscience1179-06952019-03-011310.1177/1179069519837564Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina ModelMichael R Gardner0Ayesha S Rahman1Thomas E Milner2Henry G Rylander3Department of Chemical Engineering, University of Bahrain, Isa Town, BahrainDepartment of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USADepartment of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USADepartment of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USASeveral studies have noted a correlation between retinal degeneration and traumatic encephalopathy (TE) making the retina a leading candidate for detection and assessment. Scattering-angle-resolved optical coherence tomography (SAR-OCT) is a candidate imaging modality to detect sub-resolution changes in retinal microstructure. SAR-OCT images of murine retinas that experience a hypoxic insult—euthanasia by isoflurane overdose—are presented. A total of 4 SAR-OCT measurement parameters are reported in 6 longitudinal experiments: blood flow volume fraction, total retinal thickness, reflectance index, and scattering angle. As each mouse expires, blood flow volume fraction decreases, total retinal thickness increases, reflectance index decreases, and scattering angle diversity increases. Contribution of the retinal vasculature to scattering angle diversity is discussed. Results of this study suggest the utility of SAR-OCT to measure TE using scattering angle diversity contrast in the retina.https://doi.org/10.1177/1179069519837564
spellingShingle Michael R Gardner
Ayesha S Rahman
Thomas E Milner
Henry G Rylander
Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina Model
Journal of Experimental Neuroscience
title Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina Model
title_full Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina Model
title_fullStr Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina Model
title_full_unstemmed Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina Model
title_short Scattering-Angle-Resolved Optical Coherence Tomography of a Hypoxic Mouse Retina Model
title_sort scattering angle resolved optical coherence tomography of a hypoxic mouse retina model
url https://doi.org/10.1177/1179069519837564
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