scholarly journals System of label-free three-dimensional optical coherence tomography angiography with high sensitivity and motion contrast and its applications in brain science

2016 ◽  
Vol 65 (15) ◽  
pp. 154201
Author(s):  
Zhou Li-Ping ◽  
Li Pei ◽  
Pan Cong ◽  
Guo Li ◽  
Ding Zhi-Hua ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence Tomography Angiography ◽  
Three Dimensional ◽  
High Sensitivity ◽  
Optical Coherence ◽  
Label Free ◽  
Brain Science ◽  
Motion Contrast

Optical Coherence Tomography Angiography in Retinal Diseases

2017 ◽  
pp. 69-74
Keyword(s):  
Optical Coherence Tomography ◽  
Contrast Agent ◽  
Optical Coherence Tomography Angiography ◽  
Imaging Method ◽  
Retinal Diseases ◽  
Optical Coherence ◽  
Vascular Networks ◽  
Motion Contrast ◽  
Choroidal Vasculature

Optical coherence tomography angiography (OCTA) is a new imaging method providing the assessment of retinal and choroidal vasculature without a contrast agent. In this angiography type, the vascular networks have been visualized in detail though detecting motion contrast of erythrocytes in the vessel, using serial optical coherence tomography B-scans. Currently, OCTA findings of many retinal diseases have been reported.

Motion Contrast Optical Coherence Tomography Angiography

2016 ◽  
Author(s):  
Pei Li ◽  
Liping Zhou ◽  
Yang Ni ◽  
Yuxuan Cheng ◽  
Zhihua Ding ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Motion Contrast

scholarly journals In vivo, label-free, three-dimensional quantitative imaging of kidney microcirculation using Doppler optical coherence tomography

2011 ◽  
Vol 91 (11) ◽  
pp. 1596-1604 ◽  
Author(s):  
Jeremiah Wierwille ◽  
Peter M Andrews ◽  
Maristela L Onozato ◽  
James Jiang ◽  
Alex Cable ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Quantitative Imaging ◽  
Three Dimensional ◽  
Optical Coherence ◽  
Label Free ◽  
Doppler Optical Coherence Tomography

Enhanced resolution and speckle‐free three‐dimensional printing of macular optical coherence tomography angiography

2017 ◽  
Vol 97 (2) ◽  
Author(s):  
Peter M. Maloca ◽  
Richard F. Spaide ◽  
Simon Rothenbuehler ◽  
Hendrik P. N. Scholl ◽  
Tjebo Heeren ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence Tomography Angiography ◽  
Three Dimensional ◽  
Optical Coherence ◽  
Three Dimensional Printing ◽  
Enhanced Resolution ◽  
Dimensional Printing

scholarly journals Statistical analysis of motion contrast in optical coherence tomography angiography

2015 ◽  
Vol 20 (11) ◽  
pp. 116004 ◽  
Author(s):  
Yuxuan Cheng ◽  
Li Guo ◽  
Cong Pan ◽  
Tongtong Lu ◽  
Tianyu Hong ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Statistical Analysis ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Motion Contrast ◽  
Analysis Of Motion

scholarly journals Machine learning in optical coherence tomography angiography

2021 ◽  
pp. 153537022110265
Author(s):  
David Le ◽  
Taeyoon Son ◽  
Xincheng Yao
Keyword(s):  
Machine Learning ◽  
Optical Coherence Tomography ◽  
Image Analysis ◽  
Human Error ◽  
Optical Coherence Tomography Angiography ◽  
Disease Classification ◽  
Optical Coherence ◽  
Label Free ◽  
Machine Learning Classification ◽  
Recent Developments

Optical coherence tomography angiography (OCTA) offers a noninvasive label-free solution for imaging retinal vasculatures at the capillary level resolution. In principle, improved resolution implies a better chance to reveal subtle microvascular distortions associated with eye diseases that are asymptomatic in early stages. However, massive screening requires experienced clinicians to manually examine retinal images, which may result in human error and hinder objective screening. Recently, quantitative OCTA features have been developed to standardize and document retinal vascular changes. The feasibility of using quantitative OCTA features for machine learning classification of different retinopathies has been demonstrated. Deep learning-based applications have also been explored for automatic OCTA image analysis and disease classification. In this article, we summarize recent developments of quantitative OCTA features, machine learning image analysis, and classification.

scholarly journals Optical Coherence Tomography Angiography versus Dye Angiography in Age-Related Macular Degeneration: Sensitivity and Specificity Analysis

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Eleni Nikolopoulou ◽  
Massimo Lorusso ◽  
Luisa Micelli Ferrari ◽  
Maria Vittoria Cicinelli ◽  
Francesco Bandello ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Macular Degeneration ◽  
Sensitivity And Specificity ◽  
Optical Coherence Tomography Angiography ◽  
High Sensitivity ◽  
Age Related Macular Degeneration ◽  
Type I ◽  
Optical Coherence ◽  
Type Ii ◽  
Age Related

Introduction. Optical coherence tomography angiography (OCTA) could be a valid tool to detect choroidal neovascularization (CNV) in neovascular age-related macular degeneration (nAMD), allowing the analysis of the type, the morphology, and the extension of CNV in most of the cases. Purpose. To determine the sensitivity and specificity of OCTA in detecting CNV secondary to nAMD, compared to fluorescein angiography (FA) and indocyanine green angiography (ICGA). Methods. Prospective observational study. Patients with suspected nAMD were recruited between May and December 2016. Patients underwent FA, ICGA, spectral domain OCT, and OCTA (AngioVue, Optovue, Inc.). Sensitivity and specificity of FA, with or without ICGA, were assessed and compared with OCTA. Results. Seventy eyes of 70 consecutive patients were included: 32 eyes (45.7%) with type I CNV, 8 eyes (11.4%) with type II CNV, 4 eyes (5.7%) with type III CNV, 6 eyes (8.6%) with mixed type I and type II CNV, and 20 eyes (28.6%) with no CNV. Sensitivity of OCTA was 88% and specificity was 90%. Concordance between FA/ICGA and OCTA was very good (0,91; range 0,81–1,00). Conclusions. OCTA showed high sensitivity and specificity for detection of CNV. Concordance between OCTA and gold-standard dye-based techniques was excellent. OCTA may represent a first-line noninvasive method for the diagnosis of nAMD.

Quantification of diabetic macular ischemia using novel three‐dimensional optical coherence tomography angiography metrics

2020 ◽  
Vol 13 (10) ◽  
Author(s):  
Enrico Borrelli ◽  
Riccardo Sacconi ◽  
Lea Querques ◽  
Marco Battista ◽  
Francesco Bandello ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence Tomography Angiography ◽  
Three Dimensional ◽  
Optical Coherence ◽  
Macular Ischemia
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