Articles that mention Sun Yat-Sen University -Optical Coherence Tomography News

Sun Yat-Sen University

0 Comments Leave a Comment

1-15 of 179 1 2 3 4 ... 10 11 12 »
1. Mentioned In 179 Articles
2. Balanced detection spectral-domain optical coherence tomography with a single line-scan camera
  
  Explore OSA | OSA Publishing 22 hours, 17 min ago
  
  This paper describes a balanced detection spectral-domain optical coherence tomography (BD-SD-OCT) system for suppressing autocorrelation (AC) artifacts and increasing the signal-to-noise ratio (SNR). The system employed three optical fiber couplers to generate two phase-opposed interference spectra that were acquired by a single line-scan camera simultaneously. When compared with conventional unbalanced detection SD-OCT systems, the developed BD-SD-OCT system improved the SNR by 5.4-6 dB and suppressed the AC term by ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
3. Wide Corneal Epithelial Thickness Mapping in Eyes With Topical Antiglaucoma Therapy Using Optical Coherence Tomography
  
  Explore TVST Journal Jan 6 2022 Ophthalmology
  
  Purpose: The purpose of this study was to assess the corneal epithelial thickness (CET) of the 9-mm diameter zone in patients treated using topical antiglaucoma medications and to evaluate the factors associated with CET changes. Methods: Seventy-five patients treated using topical antiglaucoma medications and 65 healthy subjects were included in this cross-sectional study. Each patient completed the Ocular Surface Disease Index (OSDI) questionnaire and underwent examinations including the Schirmer I ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
4. Retinal Microvasculature Changes in Patients With Coronary Total Occlusion on Optical Coherence Tomography Angiography
  
  Explore Frontiers Jan 5 2022 Ophthalmology
  
  Background: Retinal microvasculature has been associated with coronary artery disease (CAD), but the exact contributory role in coronary total occlusion (CTO) is unclear. We aimed to investigate whether retinal vasculature is associated with CTO and could provide incremental value in the assessment of CTO. Methods: A total of 218 CAD patients including 102 CTO and 116 non-CTO were enrolled. Retinal vasculature was measured by optical coherence tomography angiography (OCTA) for ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
5. Segmentation Errors in the Measurement of Volumetric Parameters by Swept-Source Anterior Segment Optical Coherence Tomography
  
  Explore Frontiers Jan 5 2022 Ophthalmology
  
  Purpose: To investigate the error rate of segmentation in the automatic measurement of anterior chamber volume (ACV) and iris volume (IV) by swept-source anterior segment optical coherence tomography (SS-ASOCT) in narrow-angle and wide-angle eyes. Methods: In this study, fifty eyes from 25 narrow-angle subjects and fifty eyes from 25 wide-angle subjects were enrolled. SS-ASOCT examinations were performed and each SS-ASOCT scan was reviewed, and segmentation errors in the automatic measurement ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University The Chinese University of Hong Kong
6. CHARACTERISTICS OF THE FOVEAL MICROVASCULATURE IN CHILDREN WITH MARFAN SYNDROME: An Optical Coherence Tomography Angiography Study
  
  Explore LWW Online Dec 23 2021 Cardiology
  
  Purpose: To investigate the characteristics of foveal microvasculature in children with Marfan syndrome (MFS). Methods: Ninety eyes from 45 MFS patients and 76 eyes from 38 healthy individuals of age-matched, sex-matched, and axial length-matched were enrolled. Characteristics of the superficial capillary plexus including the vessel density, perfusion density, and foveal avascular zone were analyzed by optical coherence tomography angiography. Results: The vessel density and the circularity index of the foveal ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
7. Advances and Current Clinical Applications of Anterior Segment Optical Coherence Tomography Angiography
  
  Explore Frontiers Dec 12 2021 Ophthalmology
  
  Optical coherence tomography angiography (OCTA) is the most relevant evolution based on optical coherence tomography (OCT). OCTA can present ocular vasculature, show detailed morphology for assessment, and quantify vessel parameters without intravenous dye agent. Research on the anterior segment OCTA (AS-OCTA) is only in its initial phase, and its advances in clinical diagnosis and treatment efficacy evaluations require a detailed comparison to traditional imaging methods. In this review of AS-OCTA ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
8. Predicting Post-Therapeutic Visual Acuity and OCT Images in Patients With Central Serous Chorioretinopathy by Artificial Intelligence
  
  Explore Frontiers Dec 12 2021 Ophthalmology
  
  To predict visual acuity (VA) and post-therapeutic optical coherence tomography (OCT) images 1, 3, and 6 months after laser treatment in patients with central serous chorioretinopathy (CSC) by artificial intelligence (AI). Real-world clinical and imaging data were collected at Zhongshan Ophthalmic Center (ZOC) and Xiamen Eye Center (XEC). The data obtained from ZOC (416 eyes of 401 patients) were used as the training set; the data obtained from XEC (64 ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University University of Miami Nanjing University of Science and Technology
9. Low-Reflectivity Drusen With Overlying RPE Damage Revealed by Spectral-Domain OCT: Hint for the Development of Age-Related Macular Degeneration
  
  Explore Frontiers Nov 15 2021 Ophthalmology
  
  Purpose: To observe the relationship between the characteristic changes in the drusen morphology revealed by the spectral-domain optical coherence tomography (SD-OCT) and the progression of age-related macular degeneration (AMD). Methods: A total of 380 drusen in 45 eyes in 35 patients with the intermediate drusen were longitudinally followed up every 6 months by SD-OCT for a period of 24 months. The drusen were divided into the dynamic group and stable ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University South China Normal University
10. Microvasculature Features of Vogt-Koyanagi-Harada Disease Revealed by Widefield Swept-Source Optical Coherence Tomography Angiography
  
  Explore Frontiers Nov 2 2021 Ophthalmology
  
  Background: Vogt-Koyanagi-Harada (VKH) disease is a multisystem autoimmune disorder which could induce bilateral panuveitis involving the posterior pole and peripheral fundus. Optical coherence tomography angiography (OCTA) provides several advantages over traditional fluorescence angiography for revealing pathological abnormalities of the retinal vasculature. Until recently, however, the OCTA field of view (FOV) was limited to 6 6 mm 2 scans. Purpose: This study examined retinal vasculature and choriocapillaris abnormalities across multiple regions ...
  Read Full Article
  
  Comment
  
  Mentions: Carl Zeiss Meditec Sun Yat-Sen University
11. Association of Myopia With Microvascular Alterations in Patients With Type 2 Diabetes: An Optical Coherence Tomography Angiography Study
  
  Explore Frontiers Oct 20 2021 Ophthalmology
  
  Purpose: To determine the association of myopia with peripapillary and macular microvasculature in eyes with type 2 diabetes using optical coherence tomography angiography (OCTA). Methods: Diabetic patients with and without diabetic retinopathy (DR) were recruited and grouped according to myopic status in this cross-sectional study. Axial length, refractive error, and OCTA parameters were measured. OCTA parameters were analyzed with adjustment of confounding factors and further Bonferroni analysis was performed to ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
12. Comparison of the Effect of Pan-Retinal Photocoagulation and Intravitreal Conbercept Treatment on the Change of Retinal Vessel Density Monitored by Optical Coherence Tomography Angiography in Patients with Proliferative Diabetic Retinopathy
  
  Explore MDPI Open Access Journals Platform Oct 13 2021 Ophthalmology
  
  Background: This study compares the change of retinal vessel density (VD) after pan-retinal photocoagulation (PRP) and intravitreal conbercept (IVC) treatment in proliferative diabetic retinopathy (PDR) eyes with optical coherence tomography angiography (OCTA). Methods: A total of 55 treatment-nave PDR eyes were included in this retrospective study. Of these, 29 eyes were divided into a PRP group, and 26 eyes were divided into an IVC group based on the treatment they ...
  Read Full Article
  
  Comment
  
  Mentions: Case Western Reserve University Sun Yat-Sen University
13. Digital Gonioscopy based on Three-dimensional Anterior Segment Optical Coherence Tomography: an international multicenter study
  
  Explore Ophthalmology Oct 8 2021 Ophthalmology
  
  Objective: To develop and evaluate the performance of a three-dimensional deep-learning based automated digital gonioscopy system (3D DGS) in detecting two major characteristics in eyes suspected to have primary angle closure glaucoma (PACG): 1) narrow iridocorneal angles (static gonioscopy, Task I) and; 2) peripheral anterior synechiae (PAS) (dynamic gonioscopy, Task II) on optical coherence tomography scans. Design: International cross-sectional multicentre study. Subjects: A total of 1.112 million images of ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
14. Vascular Abnormalities in Peripapillary and Macular Regions of Behcet's Uveitis Patients Evaluated by Optical Coherence Tomography Angiography
  
  Explore Frontiers Oct 5 2021 Ophthalmology
  
  Purpose: To investigate the involvement of peripapillary zone vascular abnormalities in Behcet's uveitis (BU) and associated visual dysfunction. We evaluated the retinal and choroidal microvascular features in both macular and peripapillary areas of BU patients to identify vascular abnormalities contributing to reduced best-corrected visual acuity (BCVA) using optical coherence tomography angiography (OCTA). Methods: A prospective, observational study was conducted in 24 eyes of 13 patients with BU and 24 ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
15. Choriocapillaris Flow Deficits in Normal Chinese Imaged by Swept-Source Optical Coherence Tomographic Angiography
  
  Explore American Journal of Ophthalmology Sep 25 2021 Ophthalmology
  
  ...rt: This research was supported by the High-level Hospital Construction Project, Zhongshan Ophthalmic Center, Sun Yat-sen University (303020104), the National Natural Science Foundation of China (82070955& 82000901). b. ...
  Read Full Article
  
  Comment
  
  Mentions: Topcon Medical Systems Sun Yat-Sen University Haag-Streit
16. Quantitative Evaluation of Damages to Retinal Capillaries Caused by Half-dose and Half-time Photodynamic Therapy with Optical Coherent Tomographic Angiography
  
  Explore ScienceDirect Aug 14 2021 Dermatology
  
  Purpose : To determine and compare retinal capillaries damages in patients with chronic central serous chorioretinopathy (CSC) after half-dose and half-time photodynamic therapy (PDT) based on optical coherence tomographic angiography (OCTA). Methods : Thirty-three eyes of 33 patients and 32 eyes of 32 patients with active CSC were treated with half-dose PDT and half-time PDT respectively and followed up for 3 months. Fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) were ...
  Read Full Article
  
  Comment
  
  Mentions: Sun Yat-Sen University
17. 1-15 of 179 1 2 3 4 ... 10 11 12 »