Grading of macular perfusion in retinal vein occlusion using en-face swept-source optical coherence tomography angiography: a retrospective observational case series
Autor: | Mohsen A Abou Shousha, Mohamed M. A. Lolah, Amr Saad Bessa, Tarek Abdelrazek Hafez, Magdy Moussa, Hazem El Hennawi, Mahmoud Leila |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
Male
Visual acuity Time Factors genetic structures Posterior pole Visual Acuity chemistry.chemical_compound 0302 clinical medicine lcsh:Ophthalmology Occlusion Macula Lutea Fluorescein Angiography Aged 80 and over General Medicine Middle Aged Female medicine.symptom Perfusion Tomography Optical Coherence Research Article Adult medicine.medical_specialty Retinal Vein Fundus Oculi Ischemia SS-OCTA in retinal vein occlusion 03 medical and health sciences Young Adult Ophthalmology Grading of macular perfusion Retinal Vein Occlusion medicine Humans SS-OCTA Aged Retrospective Studies business.industry Microcirculation Retinal Vessels Retinal medicine.disease eye diseases Capillaries chemistry lcsh:RE1-994 030221 ophthalmology & optometry Branch retinal vein occlusion business 030217 neurology & neurosurgery |
Zdroj: | BMC Ophthalmology, Vol 19, Iss 1, Pp 1-13 (2019) BMC Ophthalmology |
ISSN: | 1471-2415 |
Popis: | Background To evaluate the efficacy of swept –source optical coherence tomography angiography (SS-OCTA) in grading macular perfusion in retinal vein occlusion. Methods Retrospective observational case series including patients with different types of retinal vein occlusion (RVO). SS-OCTA utilizes OCTARA algorithm to examine the retinal vascular plexuses for the presence of morphological signs of ischemia according to a predetermined grading scheme. The findings were compared with fundus fluorescein angiography (FFA), and swept-source optical coherence tomography (SS-OCT) features. Bivariate correlation, coefficient of determination, and crosstabs procedures were used to calculate inter-variable linear correlation, relative contribution of the tested variables, and multivariate association, respectively. Results The study included 144 eyes of 138 patients. The most common type of RVO was branch retinal vein occlusion (BRVO) (53%). The superficial capillary plexus (SCP) and the deep capillary plexus (DCP) did not correlate with each other in all parameters tested. Increased central macular thickness (CMT) and disrupted retinal outer layers (DROL) were associated with increased severity of ischemia in DCP. Disorganized retinal inner layers (DRIL) correlated significantly with the presence of perifoveal capillary ischemia in the SCP and the DCP. Macular ischemia on FFA correlated with ischemia in the SCP layer only. Increased CMT, DROL and DRIL on SS-OCT, and SCP and DCP ischemia on SS-OCTA contributed significantly to diminished best-corrected visual acuity (BCVA). Conclusion SS-OCTA is more precise in defining the extent and location of maximum ischemic insult following RVO compared to FFA, hence represents a more efficient grader for ischemic damage in the posterior pole. Increased CMT, DRIL, and DROL on SS-OCT, and SCP and DCP ischemia on SS-OCTA are significant predictors of poor visual outcome. |
Databáze: | OpenAIRE |
Externí odkaz: |