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Diagnostic role of combining scanninglaser ophthalmoscope (SLO) with opticalcoherence tomography (OCT) in imaging ofvarious macular disorders

Thesis

Last updated: 06 Feb 2023

Subjects

-

Tags

Ophthalmology

Advisors

El-Sanabari, Zainab S. , Raafat, Karim A. , Subhi, Ranya M.

Authors

El-Amrousi, Nahla Muhammad Mussttafa

Accessioned

2017-04-26 12:29:57

Available

2017-04-26 12:29:57

type

M.Sc. Thesis

Abstract

This study aims to evaluate the diagnostic role of combined OCT/SLO indifferent macular pathologies, which operates in two scanning modes: Bscan,which produces cross sectional (longitudinal) images of the retina andC-scan, which produces coronal (transversal) scans of the retina, thusproducing images that are pixel-to-pixel in correspondence with the confocalimage. This study included 129 eyes with different macular disorders and 20normal individuals to enhance the interpretation of OCT C-scans and tostudy retinal image patterns, as C-scan imaging is new in its application toOCT and the images are challenging at first glance because they revealdetails of inner retinal structure that until now has only been looked at Bscanperspective. Transversal C-scans can provide information not availableusing conventional OCT imaging, particularly in cases of vitreo-macularadhesions and epiretinal membranes, where points of antero-posterior ortangential traction are also well localized, thus assisting in furthermanagement. The different patterns of macular edema shown both by B-scanand C-scan aided in the diagnosis and follow up of the patients. B-scan givesprecise information about the amount of edema in contrast to C-scan.Conclusion: The combination of several C-scans at different depths with asimultaneously acquired confocal image using the overlay facility and byadding information from B-scans and retinal topography, a broaderunderstanding of the imaged retinal pathology can be acquired.

Issued

1 Jan 2007

DOI

http://dx.doi.org/10.21473/iknito-space/32631

Details

Type

Thesis

Created At

28 Jan 2023