scholarly journals Optical Coherence Tomography Angiography of Choroidal Neovascularisation

2016 ◽  
Vol 10 (01) ◽  
pp. 29 ◽  
Author(s):  
Lorenzo Iuliano ◽  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence Tomography Angiography ◽  
Three Dimensional ◽  
Choroidal Neovascularisation ◽  
Diagnostic Tools ◽  
Retinal Diseases ◽  
Optical Coherence ◽  
Promising Technique ◽  
Non Invasive ◽  
Dimensional Reconstruction

Optical coherence tomography angiography (OCTA) is a new promising technique able to provide a rapid, dyeless and non-invasive three-dimensional reconstruction of perfused vessels of retina and choroid. OCTA has been recently added to the diagnostic tools of retinal experts, and its role is still being explored in different retinal diseases. Chorodial neovascularisations (CNVs) are among the most significant disorders where OCTA is enhancing our diagnostic and classification skills, since it demonstrates an excellent capacity to identify and characterise each specific subtype of CNV.

scholarly journals Non-invasive three-dimensional thickness analysis of oral epithelium based on optical coherence tomography—development and diagnostic performance

Heliyon ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. e06645
Author(s):  
Charlotte Theresa Trebing ◽  
Sinan Sen ◽  
Stefan Rues ◽  
Christopher Herpel ◽  
Maria Schöllhorn ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Diagnostic Performance ◽  
Three Dimensional ◽  
Oral Epithelium ◽  
Optical Coherence ◽  
Non Invasive

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.

Intraluminal three-dimensional optical coherence tomography – a tool for imaging of the Eustachian tube?

2019 ◽  
Vol 133 (2) ◽  
pp. 87-94 ◽  
Author(s):  
R Schuon ◽  
B Mrevlje ◽  
B Vollmar ◽  
T Lenarz ◽  
G Paasche
Keyword(s):  
Optical Coherence Tomography ◽  
Eustachian Tube ◽  
Cross Sections ◽  
Ex Vivo ◽  
Three Dimensional ◽  
Diagnostic Value ◽  
Optical Coherence ◽  
Experimental Conditions ◽  
Non Invasive ◽  
Tube Dysfunction

AbstractObjectivesThe cause of Eustachian tube dysfunction often remains unclear. Therefore, this study aimed to examine the feasibility and possible diagnostic use of optical coherence tomography in the Eustachian tube ex vivo.MethodsTwo female blackface sheep cadaver heads were examined bilaterally. Three conditions of the Eustachian tube were investigated: closed (resting position), actively opened and stented. The findings were compared (and correlated) with segmented histological cross-sections.ResultsIntraluminal placement of the Eustachian tube with the optical coherence tomography catheter was performed without difficulty. Regarding the limited infiltration depth of optical coherence tomography, tissues can be differentiated. The localisation of the stent was accurate as was the lumen.ConclusionThe application of optical coherence tomography in the Eustachian tube under these experimental conditions is considered to be a feasible, rapid and non-invasive diagnostic method, with possible diagnostic value for determining the luminal shape and superficial lining tissue of the Eustachian tube.

scholarly journals Optical coherence tomography angiography of foveal neovascularisation in proliferative diabetic retinopathy

2019 ◽  
Vol 12 (8) ◽  
pp. e230382
Author(s):  
Deven Dhurandhar ◽  
Padmaja Kumari Rani
Keyword(s):  
Optical Coherence Tomography ◽  
Diabetic Retinopathy ◽  
Proliferative Diabetic Retinopathy ◽  
Optical Coherence Tomography Angiography ◽  
Imaging Modality ◽  
Diabetic Macular Oedema ◽  
Hypertensive Retinopathy ◽  
Optical Coherence ◽  
Non Invasive

A 52-year-old man, a known case of type 2 diabetes mellitus and hypertension, who presented to us with bilateral diminution of vision since 1 year. He was diagnosed as a case of bilateral proliferative diabetic retinopathy and hypertensive retinopathy. A non-invasive imaging modality, optical coherence tomography angiography (OCTA), detected foveal neovascularisation in a background of diffuse diabetic macular oedema which would have been obscured by other investigations like fluorescein angiography.

scholarly journals Optimized Computer-Aided Segmentation and Three-Dimensional Reconstruction Using Intracoronary Optical Coherence Tomography

2018 ◽  
Vol 22 (4) ◽  
pp. 1168-1176 ◽  
Author(s):  
Lambros Athanasiou ◽  
Farhad Rikhtegar Nezami ◽  
Micheli Zanotti Galon ◽  
Augusto Celso Lopes ◽  
Pedro Alves Lemos ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Three Dimensional ◽  
Optical Coherence ◽  
Three Dimensional Reconstruction ◽  
Computer Aided ◽  
Dimensional Reconstruction

scholarly journals Intravitreal ranibizumab for the management of serous maculopathy secondary to optic disc coloboma-associated choroidal neovascularisation

2021 ◽  
Vol 14 (1) ◽  
pp. e235452
Author(s):  
Sarah Schimansky ◽  
Xia Ni Wu ◽  
Catherine Egan ◽  
Quresh Mohamed
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Optical Coherence Tomography Angiography ◽  
Structural Response ◽  
Choroidal Neovascularisation ◽  
Fundus Examination ◽  
Optical Coherence ◽  
Intravitreal Ranibizumab ◽  
Optic Disc Coloboma ◽  
Optic Nerve Coloboma

We report the case of a 19-year-old patient with symptomatic unilateral serous maculopathy associated with an optic nerve coloboma. Fluorescein angiography detected a focal late leak at the temporal edge of the coloboma which was later found to correspond with an area of choroidal neovascularisation on optical coherence tomography angiography. A course of intravitreal ranibizumab achieved good clinical and structural response. This report contributes to the evidence that maculopathies associated with cavitary optic nerve anomalies may in some instances result from choroidal neovascularisation. It also highlights the importance of angiography to identify potential choroidal neovascular membranes, particularly in the absence of haemorrhages and neovascular membranes on fundus examination and conventional optical coherence tomography.

scholarly journals Optical Coherence Tomography Angiography Imaging in Inherited Retinal Diseases

2019 ◽  
Vol 8 (12) ◽  
pp. 2078 ◽  
Author(s):  
Ong ◽  
Patel ◽  
Singh
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence Tomography Angiography ◽  
Imaging Modality ◽  
Retinal Disease ◽  
Macular Dystrophy ◽  
Retinal Diseases ◽  
Optical Coherence ◽  
Inherited Retinal Dystrophies ◽  
Retinal Dystrophies ◽  
Powerful Research Tool

Optical coherence tomography angiography (OCTA) is a novel, noninvasive imaging modality that allows depth-resolved imaging of the microvasculature in the retina and the choroid. It is a powerful research tool to study the pathobiology of retinal diseases, including inherited retinal dystrophies. In this review, we provide an overview of the evolution of OCTA technology, compare the specifications of various OCTA devices, and summarize key findings from published OCTA studies in inherited retinal dystrophies including retinitis pigmentosa, Stargardt disease, Best vitelliform macular dystrophy, and choroideremia. OCTA imaging has provided new data on characteristics of these conditions and has contributed to a deeper understanding of inherited retinal disease.

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