Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis

<i>Background:</i> Both greater retinal neurodegenerative pathology and greater cardiovascular burden are seen in people with multiple sclerosis (pwMS). Studies also describe multiple extracranial and intracranial vascular changes in pwMS. However, there have been few studies examining t...

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Main Authors: Nicholas Young, Robert Zivadinov, Michael G. Dwyer, Niels Bergsland, Bianca Weinstock-Guttman, Dejan Jakimovski
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Diagnostics
Subjects:
Online Access:https://www.mdpi.com/2075-4418/13/4/596
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author Nicholas Young
Robert Zivadinov
Michael G. Dwyer
Niels Bergsland
Bianca Weinstock-Guttman
Dejan Jakimovski
author_facet Nicholas Young
Robert Zivadinov
Michael G. Dwyer
Niels Bergsland
Bianca Weinstock-Guttman
Dejan Jakimovski
author_sort Nicholas Young
collection DOAJ
description <i>Background:</i> Both greater retinal neurodegenerative pathology and greater cardiovascular burden are seen in people with multiple sclerosis (pwMS). Studies also describe multiple extracranial and intracranial vascular changes in pwMS. However, there have been few studies examining the neuroretinal vasculature in MS. Our aim is to determine differences in retinal vasculature between pwMS and healthy controls (HCs) and to determine the relationship between retinal nerve fiber layer (RNFL) thickness and retinal vasculature characteristics. <i>Methods:</i> A total of 167 pwMS and 48 HCs were scanned using optical coherence tomography (OCT). Earlier OCT scans were available for 101 pwMS and 35 HCs for an additional longitudinal analysis. Segmentation of retinal vasculature was performed in a blinded manner in MATLAB’s optical coherence tomography segmentation and evaluation GUI (OCTSEG) software. <i>Results:</i> PwMS has fewer retinal blood vessels when compared to HCs (35.1 vs. 36.8, <i>p</i> = 0.017). Over the 5.4 year follow up, and when compared to HCs, pwMS has a significant decrease in number of retinal vessels (average loss of −3.7 <i>p</i> = 0.007). Moreover, the total vessel diameter in pwMS does not change when compared to the increase in vessel diameter in the HCs (0.06 vs. 0.3, <i>p</i> = 0.017). Only in pwMS is there an association between lower RNFL thickness and fewer retinal vessel number and smaller diameter (r = 0.191, <i>p</i> = 0.018 and r = 0.216, <i>p</i> = 0.007). <i>Conclusions:</i> Over 5 years, pwMS exhibit significant retinal vascular changes that are related to greater atrophy of the retinal layers.
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spelling doaj.art-685313e8f9124534824ac2cb9c39a6ba2023-11-16T20:00:10ZengMDPI AGDiagnostics2075-44182023-02-0113459610.3390/diagnostics13040596Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple SclerosisNicholas Young0Robert Zivadinov1Michael G. Dwyer2Niels Bergsland3Bianca Weinstock-Guttman4Dejan Jakimovski5Buffalo Neuroimaging Analysis Center (BNAC), Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14260, USABuffalo Neuroimaging Analysis Center (BNAC), Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14260, USABuffalo Neuroimaging Analysis Center (BNAC), Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14260, USABuffalo Neuroimaging Analysis Center (BNAC), Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14260, USAJacobs Comprehensive MS Treatment and Research Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14202, USABuffalo Neuroimaging Analysis Center (BNAC), Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14260, USA<i>Background:</i> Both greater retinal neurodegenerative pathology and greater cardiovascular burden are seen in people with multiple sclerosis (pwMS). Studies also describe multiple extracranial and intracranial vascular changes in pwMS. However, there have been few studies examining the neuroretinal vasculature in MS. Our aim is to determine differences in retinal vasculature between pwMS and healthy controls (HCs) and to determine the relationship between retinal nerve fiber layer (RNFL) thickness and retinal vasculature characteristics. <i>Methods:</i> A total of 167 pwMS and 48 HCs were scanned using optical coherence tomography (OCT). Earlier OCT scans were available for 101 pwMS and 35 HCs for an additional longitudinal analysis. Segmentation of retinal vasculature was performed in a blinded manner in MATLAB’s optical coherence tomography segmentation and evaluation GUI (OCTSEG) software. <i>Results:</i> PwMS has fewer retinal blood vessels when compared to HCs (35.1 vs. 36.8, <i>p</i> = 0.017). Over the 5.4 year follow up, and when compared to HCs, pwMS has a significant decrease in number of retinal vessels (average loss of −3.7 <i>p</i> = 0.007). Moreover, the total vessel diameter in pwMS does not change when compared to the increase in vessel diameter in the HCs (0.06 vs. 0.3, <i>p</i> = 0.017). Only in pwMS is there an association between lower RNFL thickness and fewer retinal vessel number and smaller diameter (r = 0.191, <i>p</i> = 0.018 and r = 0.216, <i>p</i> = 0.007). <i>Conclusions:</i> Over 5 years, pwMS exhibit significant retinal vascular changes that are related to greater atrophy of the retinal layers.https://www.mdpi.com/2075-4418/13/4/596multiple sclerosisoptical coherence tomographyretinal vesselsretinal nerve fiber layervessel diametercardiovascular
spellingShingle Nicholas Young
Robert Zivadinov
Michael G. Dwyer
Niels Bergsland
Bianca Weinstock-Guttman
Dejan Jakimovski
Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis
Diagnostics
multiple sclerosis
optical coherence tomography
retinal vessels
retinal nerve fiber layer
vessel diameter
cardiovascular
title Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis
title_full Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis
title_fullStr Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis
title_full_unstemmed Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis
title_short Retinal Blood Vessel Analysis Using Optical Coherence Tomography (OCT) in Multiple Sclerosis
title_sort retinal blood vessel analysis using optical coherence tomography oct in multiple sclerosis
topic multiple sclerosis
optical coherence tomography
retinal vessels
retinal nerve fiber layer
vessel diameter
cardiovascular
url https://www.mdpi.com/2075-4418/13/4/596
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