Analyzing Relative Flow Speeds in Diabetic Retinopathy Using Variable Interscan Time Analysis OCT Angiography

2021 ◽  
Vol 5 (1) ◽  
pp. 49-59
Author(s):  
Malvika Arya ◽  
Marco Bonini Filho ◽  
Carl B. Rebhun ◽  
Eric M. Moult ◽  
Byungkung Lee ◽  
...  
Keyword(s):  
Diabetic Retinopathy ◽  
Oct Angiography ◽  
Time Analysis ◽  
Flow Speeds ◽  
Relative Flow

scholarly journals Analyzing Relative Blood Flow Speeds in Choroidal Neovascularization Using Variable Interscan Time Analysis OCT Angiography

2018 ◽  
Vol 2 (4) ◽  
pp. 306-319 ◽  
Author(s):  
Carl B. Rebhun ◽  
Eric M. Moult ◽  
Stefan B. Ploner ◽  
Carlos Moreira Neto ◽  
A. Yasin Alibhai ◽  
...  
Keyword(s):  
Blood Flow ◽  
Choroidal Neovascularization ◽  
Oct Angiography ◽  
Time Analysis ◽  
Flow Speeds

scholarly journals Parafoveal OCT Angiography Features in Diabetic Patients without Clinical Diabetic Retinopathy: A Qualitative and Quantitative Analysis

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Mathilde M. Goudot ◽  
Anne Sikorav ◽  
Oudy Semoun ◽  
Alexandra Miere ◽  
Camille Jung ◽  
...  
Keyword(s):  
Diabetic Retinopathy ◽  
Quantitative Analysis ◽  
Capillary Density ◽  
Oct Angiography ◽  
Foveal Avascular Zone ◽  
Diabetic Patients ◽  
Cross Sectional ◽  
The Mean ◽  
Fundus Photographs ◽  
And Gender

Purpose. To evaluate the capacity of OCT angiography (OCTA) for detecting infraclinical lesions in parafoveal capillaries in diabetic patients without diabetic retinopathy (DR). Methods. This prospective observational cross-sectional case-control study analyzed the superficial and deep capillary plexuses (SCP and DCP) on macular OCTA scans (3 × 3 mm) centered on the fovea. We compared 22 diabetic patients (34 eyes included) without DR diagnosis on color fundus photographs, with 22 age- and gender-matched nondiabetic controls (40 eyes included). Qualitative analysis concerned morphological ischemic capillary alterations. Quantitative analysis measured foveal avascular zone (FAZ) size, parafoveal capillary density, and enlargement coefficient of FAZ between SCP and DCP. Results. Neither the qualitative nor quantitative parameters were significantly different between both groups. No microaneurysms or venous tortuosity was observed in any of the analyzed images. On the SCP, the mean FAZ area was 0.322 ± 0.125 mm2 in diabetic patients and 0.285 ± 0.150 mm2 in controls, P=0.31. On the DCP, the mean FAZ area was 0.444 ± 0.153 mm2 in cases and 0.398 ± 0.138 mm2 in controls, P=0.20. Conclusion. OCTA did not detect infraclinical qualitative or quantitative differences in parafoveal capillaries of diabetic patients without DR in comparison with nondiabetic controls.

New insights into diabetic retinopathy by OCT angiography

2018 ◽  
Vol 142 ◽  
pp. 243-253 ◽  
Author(s):  
Guodong Liu ◽  
Ding Xu ◽  
Fang Wang
Keyword(s):  
Diabetic Retinopathy ◽  
Oct Angiography

scholarly journals Optical Coherence Tomography Angiography in Diabetic Patients: A Systematic Review

Biomedicines ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 88
Author(s):  
Ana Boned-Murillo ◽  
Henar Albertos-Arranz ◽  
María Dolores Diaz-Barreda ◽  
Elvira Orduna-Hospital ◽  
Ana Sánchez-Cano ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Optical Coherence Tomography ◽  
Diabetic Retinopathy ◽  
Macular Oedema ◽  
Literature Search ◽  
Optical Coherence Tomography Angiography ◽  
Diabetic Macular Oedema ◽  
Oct Angiography ◽  
Diabetic Patients ◽  
Optical Coherence

Background: Diabetic retinopathy (DR) is the leading cause of legal blindness in the working population in developed countries. Optical coherence tomography (OCT) angiography (OCTA) has risen as an essential tool in the diagnosis and control of diabetic patients, with and without DR, allowing visualisation of the retinal and choroidal microvasculature, their qualitative and quantitative changes, the progression of vascular disease, quantification of ischaemic areas, and the detection of preclinical changes. The aim of this article is to analyse the current applications of OCTA and provide an updated overview of them in the evaluation of DR. Methods: A systematic literature search was performed in PubMed and Embase, including the keywords “OCTA” OR “OCT angiography” OR “optical coherence tomography angiography” AND “diabetes” OR “diabetes mellitus” OR “diabetic retinopathy” OR “diabetic maculopathy” OR “diabetic macular oedema” OR “diabetic macular ischaemia”. Of the 1456 studies initially identified, 107 studies were screened after duplication, and those articles that did not meet the selection criteria were removed. Finally, after looking for missing data, we included 135 studies in this review. Results: We present the common and distinctive findings in the analysed papers after the literature search including the diagnostic use of OCTA in diabetes mellitus (DM) patients. We describe previous findings in retinal vascularization, including microaneurysms, foveal avascular zone (FAZ) changes in both size and morphology, changes in vascular perfusion, the appearance of retinal microvascular abnormalities or new vessels, and diabetic macular oedema (DME) and the use of deep learning technology applied to this disease. Conclusion: OCTA findings enable the diagnosis and follow-up of DM patients, including those with no detectable lesions with other devices. The evaluation of retinal and choroidal plexuses using OCTA is a fundamental tool for the diagnosis and prognosis of DR.

scholarly journals OCT angiography in detecting preclinical diabetic retinopathy

2021 ◽  
Vol 14 (3) ◽  
pp. 124-130
Author(s):  
A. N. Stulova ◽  
N. S. Semenova ◽  
A. V. Zheleznyakova ◽  
V. S. Akopyan ◽  
D. V. Lipatov
Keyword(s):  
Diabetic Retinopathy ◽  
Oct Angiography

scholarly journals OCT angiography and visible-light OCT in diabetic retinopathy

2017 ◽  
Vol 139 ◽  
pp. 191-203 ◽  
Author(s):  
Peter L. Nesper ◽  
Brian T. Soetikno ◽  
Hao F. Zhang ◽  
Amani A. Fawzi
Keyword(s):  
Diabetic Retinopathy ◽  
Visible Light ◽  
Oct Angiography

scholarly journals Ultra-Widefield Protocol Enhances Automated Classification of Diabetic Retinopathy Severity with OCT Angiography

2020 ◽  
Vol 4 (4) ◽  
pp. 415-424
Author(s):  
FuPeng Wang ◽  
Steven S. Saraf ◽  
Qinqin Zhang ◽  
Ruikang K. Wang ◽  
Kasra A. Rezaei
Keyword(s):  
Diabetic Retinopathy ◽  
Oct Angiography ◽  
Automated Classification
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