الفهرس | Only 14 pages are availabe for public view |
Abstract This study aims to evaluate the diagnostic role of combined OCT/SLO in different macular pathologies, which operates in two scanning modes: Bscan, which produces cross sectional (longitudinal) images of the retina and C-scan, which produces coronal (transversal) scans of the retina, thus producing images that are pixel-to-pixel in correspondence with the confocal image. This study included 129 eyes with different macular disorders and 20 normal individuals to enhance the interpretation of OCT C-scans and to study retinal image patterns, as C-scan imaging is new in its application to OCT and the images are challenging at first glance because they reveal details of inner retinal structure that until now has only been looked at Bscan perspective. Transversal C-scans can provide information not available using conventional OCT imaging, particularly in cases of vitreo-macular adhesions and epiretinal membranes, where points of antero-posterior or tangential traction are also well localized, thus assisting in further management. The different patterns of macular edema shown both by B-scan and C-scan aided in the diagnosis and follow up of the patients. B-scan gives precise information about the amount of edema in contrast to C-scan. Conclusion: The combination of several C-scans at different depths with a simultaneously acquired confocal image using the overlay facility and by adding information from B-scans and retinal topography, a broader understanding of the imaged retinal pathology can be acquired. |