Inter-method agreement in retinal blood vessels diameter analysis between Dynamic Vessel Analyzer and optical coherence tomography

2017 ◽  
Vol 255 (6) ◽  
pp. 1079-1083 ◽  
Author(s):  
Lucia Benatti ◽  
Federico Corvi ◽  
Livia Tomasso ◽  
Stefano Mercuri ◽  
Lea Querques ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessels ◽  
Optical Coherence ◽  
Dynamic Vessel Analyzer ◽  
Retinal Blood Vessels ◽  
Method Agreement

DIAMETERS OF RETINAL BLOOD VESSELS IN A HEALTHY COHORT AS MEASURED BY SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY

Retina ◽  
2013 ◽  
Vol 33 (9) ◽  
pp. 1888-1894 ◽  
Author(s):  
Dafna Goldenberg ◽  
Jonathan Shahar ◽  
Anat Loewenstein ◽  
Michaella Goldstein
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessels ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Retinal Blood Vessels ◽  
Healthy Cohort

scholarly journals Comparison of phase-resolved Doppler optical coherence tomography and optical coherence tomography angiography for measuring retinal blood vessels size

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Zohreh Hosseinaee ◽  
Bingyao Tan ◽  
Kostadinka Bizheva
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessels ◽  
Optical Coherence ◽  
Acquisition Rate ◽  
Doppler Oct ◽  
Retinal Blood Vessels ◽  
Significant Difference ◽  
Arteries And Veins ◽  
System Operating ◽  
Sd Oct

The goal of this study was to compare two OCT-based methods for measuring retinal blood vessels size: Phase-resolved Doppler OCT (DOCT) and OCT angiography (OCTA). The study was conducted in rats (n= 6) using a SD-OCT system operating at 1060 nm with 92 kHz image acquisition rate. Arteries and veins were separated by the phase polarity. Results from this study showed that the venal diameters are significantly larger than the arterial diameters, and there is no significant difference in the vessel diameters measured by both methods.

scholarly journals Automated segmentation of retinal blood vessels in spectral domain optical coherence tomography scans

2012 ◽  
Vol 3 (7) ◽  
pp. 1478 ◽  
Author(s):  
Matthäus Pilch ◽  
Yaroslava Wenner ◽  
Elisabeth Strohmayr ◽  
Markus Preising ◽  
Christoph Friedburg ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessels ◽  
Spectral Domain ◽  
Automated Segmentation ◽  
Optical Coherence ◽  
Retinal Blood Vessels

scholarly journals The Determination of Type 2 Diabetes Mellitus’s Impact on the Density of Retinal Blood Vessels and the Choriocapillaris: Optical Coherence Tomography Angiography Study

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Marko Zlatanović ◽  
Jasmina Đorđević Jocić ◽  
Vesna Jakšić ◽  
Nevena Zlatanović ◽  
Mlađan Golubović ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Optical Coherence Tomography ◽  
Blood Vessels ◽  
Optical Coherence Tomography Angiography ◽  
Control Group ◽  
Study Group ◽  
Optical Coherence ◽  
Retinal Blood Vessels ◽  
Capillary Plexus

Optical coherence tomography angiography (OCTA) was used to analyze the alterations in the density of retinal blood vessels and the choriocapillaris (VD) in patients suffering from type 2 diabetes mellitus (T2DM). One hundred sixty-six eyes of 83 patients (43 of whom were men and 40 women, with a mean age of 58.59 ± 14.04) with T2DM and without diabetic retinopathy were examined for the purpose of conducting the observational prospective study. The control group (CG) consisted of 66 eyes in 33 healthy subjects (15 male and 18 female, with a mean age of 55.12 ± 12.70). The measurement regions of vessel density (VD) included the deep capillary plexus (DCP), the superficial capillary plexus (SCP), and the choriocapillaris. The results indicate considerable differences in the VD of the DCP and SCP when comparing the control group with the study groups ( p < 0.001 ). In comparison with the control group ( p < 0.001 ), there was a statistically significant reduction in the VD of the choriocapillaris in the study group. Furthermore, patients with T2DM showed a significantly decreased VD concerning the control in different macular regions. Thickness in several macular regions in the study group significantly decreased compared to the ones in the control group. OCTA was used to gather relevant information about the vascular changes which occurred in T2DM patients, assessed through the quantitative analysis of the blood flow in the retina and choriocapillaris.

scholarly journals Retracted: Early diabetic retinopathy diagnosis based on local retinal blood vessels analysis in optical coherence tomography angiography (OCTA) images

2018 ◽  
Vol 45 (9) ◽  
pp. 4324-4324
Author(s):  
Nabila Eladawi ◽  
Mohammed Elmogy ◽  
Fahmi Khalifa ◽  
Mohammed Ghazal ◽  
Nicola Ghazi ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Diabetic Retinopathy ◽  
Blood Vessels ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Retinal Blood Vessels

scholarly journals Optical Coherence Tomography Angiography Features of Macular Epiretinal Neovascularization In Eales’ Disease: A Case Rreport

2021 ◽  
Author(s):  
Nora Alyousif ◽  
Abrar K. Alsalamah ◽  
Hassan Aldhibi
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessels ◽  
Optic Disc ◽  
Optical Coherence Tomography Angiography ◽  
Internal Limiting Membrane ◽  
Peripheral Retina ◽  
Optical Coherence ◽  
Retinal Capillary ◽  
Eales Disease ◽  
The Right

Abstract Background: Eales disease primarily affects the peripheral retina. However, posterior involvement can be seen. Macular epiretinal neovascularization is not commonly seen in Eales disease. This report highlights the morphology and origin of macular epiretinal neovascularization (ERN) using multimodal retinal imaging, including optical coherence tomography angiography (OCTA). Results: A 35-year-old man with no history of systemic disorders presented with gradual decrease of vision in his left eye. Fundus examination of his right eye showed peripheral sclerosed blood vessels, neovascularization of the optic disc and elsewhere, and macular ERN. The view of the left fundus was limited by vitreous haemorrhage. Fluorescein angiography (FA), of the right eye showed widespread peripheral capillary nonperfusion and leakage of dye from the retinal neovascularization and macular ERN. Macular Spectral domain optical coherence tomography (SD-OCT) of the right eye showed an epiretinal membrane and the presence of epiretinal neovascular lesions extending above the internal limiting membrane towards the vitreous. Optical coherence tomography angiography (OCTA) showed multiple tiny blood vessels at the macula that arose from the superficial retinal capillary plexuses and extended toward the vitreous. The corresponding B-scan showed flow signal through these vessels and the signal extend above the internal limiting membrane. Systemic work-up was negative except for strongly positive tuberculin skin testing giving the classic diagnosis of Eales disease. Patient was started on empirical anti-tubercular therapy and oral corticosteroids. Scatter laser photocoagulation was applied to nonperfused retinal zones. Despite adequate scatter laser ablation, the ERN failed to regress fully. Conclusions: Macular ERN can be seen in cases of classic Eales disease. The origin of macular ERN in our case was shown to be from the superficial retinal capillary plexuses. We also noted the slower regression rate of macular ERN as compared to the major neovascularizations of the optic disc and peripheral retina. Further research is needed to establish the pathogenesis of ERN and its optimal management.

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