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2. SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY, FLUORESCEIN ANGIOGRAPHY, AND INDOCYANINE GREEN ANGIOGRAPHY COMPARISONS REVISITED
  
  Explore LWW Online Dec 10 2019 Ophthalmology
  
  Purpose: To compare area measurements between swept source optical coherence tomography angiography ( SSOCTA ), fluorescein angiography ( FA ), and indocyanine green angiography ( ICGA ) after applying a novel deep-learning-assisted algorithm for accurate image registration. Methods: We applied an algorithm for the segmentation of blood vessels in FA , ICGA , and SSOCTA images of 24 eyes with treatment-naive neovascular age-related macular degeneration. We trained a model based on U-Net and Mask R-CNN for each imaging ...
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  Mentions: Medical University of Vienna Ursula Schmidt-Erfurth Semmelweis University
3. The effect of image quality on the reliability of OCT angiography measurements in patients with diabetes
  
  Explore journalretinavitreous.biomedcentral.com Nov 8 2019 Ophthalmology
  
  Background This study aimed to determine the relationship between image quality and measurement repeatability of optical coherence tomography angiography (OCTA) parameters in patients with non-proliferative diabetic retinopathy. Methods A total of 100 eyes of 50 patients were included in the study. Three OCTA images were obtained consecutively during one session of imaging in all patients using the RTVue AngioVue OCTA device. We applied the signal strength index (SSI) provided by ...
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  Mentions: Semmelweis University
4. What’s New in Optical Coherence Tomography Angiography for Glaucoma (Book Chapter)
  
  Explore Home - Springer Aug 18 2019 Ophthalmology , Textbooks
  
  Glaucoma is one of the main clinical areas where OCT angiography is used. In contrast to medical retinal application, where qualitative image analysis and semiquantitative measurements are frequently satisfactory for clinical decision-making, in glaucoma the exact quantitative measurements provide the useful information. Therefore both general ophthalmologists who treat glaucoma patients and glaucoma subspecialists need to be familiar with the measurement details of OCT angiography, the types of complementary structural information ...
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  Mentions: Semmelweis University
5. Enhanced depth imaging and swept-source optical coherence tomography findings in choroidal osteoma: a case report
  
  Explore Home - Springer Apr 18 2019 Ophthalmology
  
  Purpose The aim of this study was to report the findings from enhanced depth imaging (EDI) and swept-source optical coherence tomography (OCT) in a choroidal osteoma. Methods A case study of a patient with choroidal osteoma is presented and discussed. Results A 25-year-old woman presented with an asymptomatic peripapillary mass. Fundus examination revealed a yelloworange, well-defined geographical lesion. B‑scan ultrasonography, corroborated by fundus autofluorescence (FAF) and OCT findings, pointed ...
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  Mentions: Semmelweis University
6. Influence of Posterior Subcapsular Cataract on Structural OCT and OCT Angiography Vessel Density Measurements in the Peripapillary Retina
  
  Explore LWW Online Dec 8 2018 Ophthalmology
  
  Purpose: To investigate the influence of posterior subcapsular cataract (PSC) on structural optical coherence tomography (OCT) and OCT angiography vessel density (VD) measurements. Methods: One eye each of 10 consecutive participants with PSC were imaged using the Angiovue/RTvue-XR OCT via undilated pupil, and 30 minutes later via dilated pupil. Peripapillary retinal nerve fiber layer thickness (RNFLT), peripapillary capillaries and all-vessels VD, ganglion cell complex thickness (GCC), parafoveal VD and ...
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  Mentions: Semmelweis University
7. Circumpapillary structure-function relationships with microperimetry and spectral domain optical ...
  
  Explore Medical Journals Publisher Dec 6 2018 Ophthalmology
  
  ...epartment of Ophthalmology, Kyorin University School of Medicine, Tokyo, Japan; 2Department of Ophthalmology, Semmelweis University, Budapest, Hungary Purpose: To compare the relationships between circumpapillary micrope...
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  Mentions: Nidek Semmelweis University Kyorin University
8. Semi-manual Vessel Density Analysis on Optical Coherence Tomography Angiography Images of Healthy Adults
  
  Explore Home - ClinicalTrials.gov Jul 18 2018 Ophthalmology , Clinical Trials
  
  Optical coherence tomography angiography (OCTA) is a software upgrade on conventional spectral-domain or swept-source optical coherence tomography devices that enables non-invasive, dye-free, three dimensional analysis of the retinal vessels. Vessel density is a very important parameter almost in all retinal disorders. In the recent past, automated quantification software was built into some OCTA devices which can automatically calculate the retinal vessel density as well. In this study two semi-manual techniques ...
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  Mentions: Carl Zeiss Meditec Semmelweis University
9. Valsalva Maneuver and Peripapillary OCT Angiography Vessel Density
  
  Explore LWW Online Jul 1 2018 Ophthalmology
  
  Purpose: To investigate the potential influence of breath holding on the results of peripapillary vessel density (VD) measurement with optical coherence tomography angiography. Materials and Methods: Three peripapillary VD measurements were made at 2-minute intervals on the right eye of 12 healthy young volunteers using the Angiovue/RTvue-XR OCT (software version 2017.1, Phase 7 update) without changing the head and body positions. During the first 2 measurements the volunteers ...
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  Mentions: Semmelweis University
10. Choroidal thickness changes in non-treated eyes of patients with diabetes: swept-source optical coherence tomography study
  
  Explore Home - Springer Jun 9 2018
  
  Aims To measure choroidal thickness (CT) in diabetic eyes and its correlation with metabolic status and the severity of diabetic retinopathy (DR). Materials and methods Prospective cross-sectional study using swept-source optical coherence tomography. CT maps of 96 treatment nave eyes of 48 patients with diabetes were compared to 46 eyes of 23 healthy controls. CT changes and their relation to diabetes, age, gender, disease duration, hypertension (HT), hemoglobin A1c level ...
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  Mentions: Semmelweis University
11. The Use of Optical Coherence Tomography for the Detection of Early Diabetic Retinopathy
  
  Explore Thieme Apr 26 2018 Ophthalmology
  
  Diabetic retinopathy (DR) is one of the leading causes of vision loss globally with a severe burden on all societies due to its high treatment and rehabilitation costs. The early diagnosis of DR may provide preventive steps (including retinal laser therapy and tight carbohydrate, blood pressure, and cholesterol control) that could in turn help to avoid progression of the pathology with the resultant vision loss. Optical coherence tomography (OCT) enables ...
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  Mentions: University of Miami Semmelweis University Delia Cabrera DeBuc
12. Comparison of Peripapillary OCT Angiography Vessel Density and Retinal Nerve Fiber Layer Thickness Measurements for Their Ability to Detect Progression in Glaucoma
  
  Explore LWW Online Mar 1 2018 Ophthalmology
  
  Purpose: The aim of this study was to investigate the applicability of peripapillary optical coherence tomography angiography angioflow vessel density measurements in the retinal nerve fiber layer for the detection of glaucomatous progression and to compare its performance with that of retinal nerve fiber layer thickness (RNFLT) measurements. Methods: Prospective RNFLT and vessel density measurements with the same Angiovue/RTVue-XR instrument were made immediately one after another on 1 eye ...
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  Mentions: Semmelweis University
13. Optical Coherence Tomography Angiography Examinations in Chronic Retinal Artery Occlusion (RAO-OCTA)
  
  Explore Home - ClinicalTrials.gov Nov 30 2017 Ophthalmology , Clinical Trials
  
  Occlusion of the retinal arteries is an emergency which causes sudden, painless unilateral vision loss. Loss of blood flow causes ischemic damage to the retina. The extent of damage depends on the area affected. Following the acute phase of the disease re-canalization occurs and lesser blood flow can be detected usually without functional recovery. Purpose of the study is to examine the retinal blood flow in chronic cases of retinal ...
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  Mentions: Semmelweis University
14. Optical Coherence Tomography Angiography to Better understand Glaucoma
  
  Explore Jaypee Journals Sep 20 2017 Ophthalmology
  
  The term optical coherence tomography angiography (OCTA) comprises different OCT-based technologies which all allow noninvasive assessment of retinal perfusion, based on moving red blood cells. The main areas where OCTA is currently used are investigation of perfusion and vascular structure of the macular retina (e.g., in macular degenerations and diabetic macular diseases) and the disk and peripapillary retina (in glaucoma and other optic disk diseases). The current editorial provides ...
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  Mentions: Semmelweis University
15. Relationship Between OCT Angiography Temporal Peripapillary Vessel-Density and Octopus Perimeter Paracentral Cluster Mean Defect
  
  Explore LWW Online May 1 2017 Ophthalmology
  
  Purpose of the Study: The purpose of the study was to investigate the relationship between optical coherence tomography angiography angioflow vessel-density (PAFD) measured in the retinal nerve fiber layer in the temporal peripapillary sector and the average of the spatially corresponding superior and inferior paracentral cluster mean defect values (mean paracentral MD) measured with Octopus perimetry. Materials and Methods: Spaermans correlation between temporal peripapillary PAFD acquired with the Angiovue OCT ...
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  Mentions: Semmelweis University
16. Two-dimensional fractal analysis of retinal tissue of healthy and diabetic eyes with optical coherence tomography
  
  Explore jbpe.ssau.ru Feb 5 2017 Ophthalmology
  
  $Two-dimensional fractal analysis of retinal tissue of healthy and diabetic eyes with optical coherence tomography$
  In the ophthalmic research, the measurement of the retinal thickness is usually employed for characterizing the structural changes of the retinal tissue. However, changes in the fractal dimension (FD) may provide additional information regarding the structure of the retinal layers and their early damage in ocular diseases. In the present paper, we investigated the possibility of detecting changes in the structure of the cellular layers of the retina by applying ...
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  Mentions: University of Miami Semmelweis University Delia Cabrera DeBuc
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