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2. Comparisons of choroidal nevus measurements obtained using 10- and 20-MHz ultrasound and spectral domain optical coherence tomography
  
  Explore scielo.br Jun 10 2017 Ophthalmology
  
  Purpose: To compare measurements of lesions clinically diagnosed as choroidal nevi using spectral domain optical coherence tomography (SD-OCT) and 10- and 20-MHz ultrasound (US). Methods: This prospective study, which was conducted between May 2011 and December 2011, evaluated eyes diagnosed with choroidal nevus via photographic documentation using 10- or 20-MHz A- and B-mode US (experienced examiner using both the transpalpebral technique and direct contact) or SD-OCT in the enhanced depth ...
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  Mentions: Universidade Federal de São Paulo
3. Large colloid drusen analyzed with structural en face optical coherence tomography
  
  Explore scielo.br Jun 8 2017 Ophthalmology
  
  Drusen are extracellular deposits between the basal lamina of the retinal pigment epithelium (RPE) and the inner collagenous layer of Bruch's membrane. Large colloid drusen (LCD) are located below the RPE and are characterized by multiple, large, dome-shaped RPE detachments, with marked attenuation of the ellipsoid zone overlaying the drusen. This report presents the structural en face optical coherence tomography (OCT) findings of LCD and relates them to findings ...
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  Mentions: Universidade Federal de São Paulo
4. Optical Coherence Tomography Angiography in Nonarteritic Anterior Ischemic Optic Neuropathy
  
  Explore LWW Online Mar 24 2017 Neurology , Ophthalmology
  
  Background: Optical coherence tomography angiography (OCTA) has demonstrated good utility in qualitative analysis of retinal and choroidal vasculature and therefore may be relevant in the diagnostic and treatment efforts surrounding nonarteritic anterior ischemic optic neuropathy (NAION). Methods: Retrospective, cross-sectional study of 10 eyes of 9 patients with a previous or new diagnosis of NAION that received imaging with OCTA between November 2015 and February 2016. Two independent readers qualitatively analyzed ...
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  Mentions: Universidade Federal de São Paulo Jay S. Duker Tufts University
5. Comparison Between Spectral-Domain and Swept-Source Optical Coherence Tomography Angiographic Imaging of Choroidal Neovascularization
  
  Explore IOVS Journal Mar 10 2017 Ophthalmology
  
  Purpose : The purpose of this study was to compare imaging of choroidal neovascularization (CNV) using swept-source (SS) and spectral-domain (SD) optical coherence tomography angiography (OCTA). Methods : Optical coherence tomography angiography was performed using a 100-kHz SS-OCT instrument and a 68-kHz SD-OCTA instrument (Carl Zeiss Meditec, Inc.). Both 3 3- and 6 6-mm 2 scans were obtained on both instruments. The 3 3-mm 2 SS-OCTA scans consisted of 300 A-scans per ...
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  Mentions: Giovanni Gregori Philip J. Rosenfeld Universidade Federal de São Paulo
6. Optical coherence tomography of macular atrophy associated with microcephaly and presumed intrauterine Zika virus infection
  
  Explore scielo.br Jan 12 2017 Ophthalmology
  
  This case report describes the retinal optical coherence tomography (OCT) findings in a microcephalic infant with macular atrophy presumably caused by intrauterine Zika virus infection. OCT demonstrated atrophy of the outer retinal layers and choriocapillaris, including the outer nuclear layer and ellipsoid zone, associated with retinal pigment epithelium hyper-reflectivity and increased OCT penetration into deeper layers of the choroid and sclera. A major concern associated with this infection is the ...
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  Mentions: Universidade Federal de São Paulo Federal University of Pernambuco
7. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY AFTER PHOTOCOAGULATION OF TYPE 2 NEOVASCULARIZATION
  
  Explore LWW Online Dec 30 2016 Ophthalmology
  
  Purpose: To illustrate errors in the automated segmentation image analysis of optical coherence tomography angiography after laser photocoagulation therapy for Type 2 neovascularization. Methods: This case report describes a patient with extrafoveal Type 2 neovascularization treated with argon laser photocoagulation evaluated before and after treatment by optical coherence tomography angiography. Results: Disrupted retinal layers after laser photocoagulation therapy lead to segmentation errors. Conclusion: Images of optical coherence tomography angiography are ...
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  Mentions: Universidade Federal de São Paulo Jay S. Duker Tufts University
8. Comparison of Optical Coherence Tomography Angiography and Fluorescein Angiography for the Identification of Retinal Vascular Changes in Eyes With Diabetic Macular Edema
  
  Explore Healio.com Nov 19 2016 Ophthalmology
  
  BACKGROUND AND OBJECTIVE: To compare the visualization of microaneurysms (MA) and the foveal avascular zone (FAZ) area using optical coherence tomography angiography (OCTA) versus fluorescein angiography (FA) in patients with diabetic macular edema (DME). PATIENTS AND METHODS: Patients were prospectively recruited for same-day imaging on spectral-domain OCTA and FA. OCTA images were automatically segmented into superficial (sOCTA) and deep (dOCTA) capillary plexuses. The number of visible MAs and the FAZ ...
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  Mentions: Universidade Federal de São Paulo Jay S. Duker Tufts University
9. CLINICAL TRIAL ENDPOINTS FOR OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY IN NEOVASCULAR AGE-RELATED MACULAR DEGENERATION
  
  Explore LWW Online Oct 28 2016 Ophthalmology
  
  Purpose: To describe qualitative and quantitative optical coherence tomography (OCT) angiography (OCTA) parameters for choroidal neovascularization (CNV) secondary to age-related macular degeneration (AMD) and their applicability as potential clinical trial endpoints. Methods: A review of current literature related to the topic of OCTA and AMD. Results: There are a number of promising OCTA parameters that can be used to diagnose the presence of CNV and to monitor the activity and ...
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  Mentions: Universidade Federal de São Paulo Massachusetts Institute of Technology Tufts University
10. Choroidal Neovascularization Analyzed on Ultrahigh-Speed Swept-Source Optical Coherence Tomography Angiography Compared to Spectral-Domain Optical Coherence Tomography Angiography
  
  Explore Elsevier Health Sep 1 2016 Ophthalmology
  
  Purpose To compare visualization of choroidal neovascularization (CNV) secondary to age-related macular degeneration (AMD) using an ultrahigh-speed swept-source (SS) optical coherence tomography angiography (OCTA) prototype vs a spectral-domain (SD) OCTA device. Design Comparative analysis of diagnostic instruments. Methods Patients were prospectively recruited to be imaged on SD OCT and SS OCT devices on the same day. The SD OCT device employed is the RTVue Avanti (Optovue, Inc, Fremont, California, USA ...
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  Mentions: Universidade Federal de São Paulo Massachusetts Institute of Technology James G. Fujimoto
11. Daily Optical Coherence Tomography Examinations after First Antivascular Endothelial Growth Factor Injections: An Interventional Case Series
  
  Explore Hindawi Publishing Corporation Jun 9 2016 Ophthalmology
  
  Purpose. To evaluate daily spectral-domain optical coherence tomography (SD-OCT) changes in naive-treatment patients with diagnosis of exudative age-related macular degeneration (AMD) treated with intravitreous bevacizumab (1.25mg), during a 30-day follow-up period. Methods. In prospective, interventional study, SD-OCT was performed daily for 30 days after the first intravitreal injection. The baseline, initial-decrease, minimal, and final central retinal thicknesses (CRTs) were assessed. Results. Nine eyes of nine patients with neovascular AMD ...
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  Mentions: Universidade Federal de São Paulo
12. Identification of the Most Accurate Spectral-domain Optical Coherence Tomography Parameters in Eyes With Early High-Tension and Low-Tension Glaucoma
  
  Explore LWW Online Mar 9 2016 Ophthalmology
  
  Purpose: The aim of the study was to compare the diagnostic ability of macular ganglion cell complex (GCC) and peripapillary retinal nerve fiber layer (pRNFL) thickness in high-tension glaucoma (HTG) and low-tension glaucoma (LTG). Patients and Methods: Glaucoma was defined as glaucomatous optic neuropathy and reproducible visual field defects. Patients were classified as having LTG if untreated intraocular pressure was =21 mm Hg on 2 different occasions. Only eyes with ...
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  Mentions: Universidade Federal de São Paulo UCSD
13. Optical Coherence Tomography (Book Chapter)
  
  Explore Home - Springer Jan 20 2016 Ophthalmology , Textbooks
  
  The evaluation of the optical coherence tomography (OCT) is based on the identification of differences in the relative reflectivity of different tissue layers and morphological changes in tissue structures. So the examination is able to localize and grossly demarcate inflammation in the vitreous cavity (by its dynamic analysis) or beneath retinal layers as well as detail retinal changes on the chronic phases of retinal disease like fibrosis, atrophy, or retinal ...
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  Mentions: Universidade Federal de São Paulo
14. Evaluation of eye tissue elasticity by means of sound propagation speed measuring in vivo
  
  Explore Conference Proceedings Jun 23 2015
  
  Introduction: To date, it has never been demonstrated the propagation sound speed in human corneas and lens in vivo. With the advent of Optical Coherence Tomography (OCT), it became possible to determine the dimensions of the ocular tissues without the interference of sound propagation speed and to use this information to define the real propagation sound speed for each patient and individualized structure. Aim: To determine the sound propagation speed ...
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  Mentions: Universidade Federal de São Paulo Optovue
15. The Use of Spectral-Domain Optical Coherence Tomography to Detect Glaucoma Progression
  
  Explore benthamopen.com Jun 10 2015 Ophthalmology
  
  Detection of progression and measurement of rates of change is at the core of glaucoma management, and the use of Spectral Domain Optical Coherence Tomography (SD-OCT) has significantly improved our ability to evaluate change in the disease. In this review, we critically assess the existing literature on the use of SD-OCT for detecting glaucoma progression and estimating rates of change. We discuss aspects related to the reproducibility of measurements, their ...
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  Mentions: Universidade Federal de São Paulo UC Davis Felipe A. Medeiros
16. Spectral-Domain Optical Coherence Tomography for Glaucoma Diagnosis
  
  Explore benthamopen.com Jun 8 2015 Ophthalmology
  
  Identification of structural damage to the optic nerve and retinal nerve fiber layer (RNFL) is an essential component of diagnosis and management of glaucoma. The introduction of spectral-domain OCT (SD-OCT) has allowed objective quantification of damage to these structures with unprecedented resolution. In addition, recent attention has been directed towards imaging the macular area for quantifying loss of neural tissue caused by the disease. Many studies have evaluated and compared ...
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  Mentions: Universidade Federal de São Paulo Felipe A. Medeiros
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