Articles that mention National University of Singapore -Optical Coherence Tomography News

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1. Mentioned In 146 Articles
2. Anterior Segment Optical Coherence Tomography: Is There a Clinical Role in the Management of Primary Angle Closure Disease?
  
  Explore LWW Online Jan 1 2020 Ophthalmology
  
  Primary angle closure disease (PACD) covers a spectrum that includes primary angle closure suspect, primary angle closure, primary angle closure glaucoma, and acute primary angle closure. Accumulating evidence suggests that the pathogenesis of PACD is complex, with multiple contributory factors including variations in the anatomic or biometric characteristics of the angle segment structures. Advances in anterior segment optical coherence tomography technology have further enhanced our understanding of the risk factors ...
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  Mentions: Singapore Eye Research Institute National University of Singapore Tin Aung
3. Validating high‐definition optical coherence tomography in filament measurements: A tool for in vivo measurement of hair shaft diameters
  
  Explore Wiley Online Library Nov 29 2019 Dermatology
  
  Letter to the editor
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  Mentions: Nanyang Technological University National University of Singapore
4. Efficacy and Reproducibility of Attenuation-Compensated Optical Coherence Tomography for Assessing External Elastic Membrane Border and Plaque Composition in Native and Stented Segments ― An In Vivo and Histology-Based Study ―
  
  Explore jstage.jst.go.jp Nov 21 2019 Cardiology
  
  Background: Attenuation-compensated (AC) technique was recently introduced to improve the plaque characterization of optical coherence tomography (OCT). Histological validation demonstrated promising results but the efficacy and reproducibility of this technique for assessing in-vivo tissue composition remains unclear. Methods and Results: OCT images portraying native (n=200) and stented (n=200) segments and 31 histological cross-sections were analyzed. AC-OCT appeared superior to conventional (C)-OCT in detecting the external elastic lamina ...
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  Mentions: Imperial College London Leiden University University College London
5. Automatic fibroatheroma identification in intravascular optical coherence tomography volumes
  
  Explore Home - Springer Oct 24 2019 Cardiology
  
  Coronary heart disease is the most common type of heart disease that leads to heart attacks. The identification of vulnerable plaques, especially the thin-cap fibroatheroma (TCFA), is crucial to the diagnosis of coronary artery disease. Intravascular optical coherence tomography (IVOCT), an emerging imaging modality, has been proven to be useful for the identification of vulnerable plaques. In this work, we propose an approach to identify the volumes with fibroatheroma frames ...
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  Mentions: National University of Singapore Wakayama Medical University Chinese Academy of Sciences
6. DeshadowGAN: A Deep Learning Approach to Remove Shadows from Optical Coherence Tomography Images
  
  Explore arxiv.org Oct 14 2019 Ophthalmology
  
  Purpose: To remove retinal shadows from optical coherence tomography (OCT) images of the optic nerve head (ONH). Methods: 2328 OCT images acquired through the center of the ONH using a Spectralis OCT machine for both eyes of 13 subjects were used to train a generative adversarial network (GAN) using a custom loss function.Image quality was assessed qualitatively (for artifacts) and quantitatively using the intralayer contrast a measure of shadow ...
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  Mentions: Cardiff University Nanyang Technological University National University of Singapore
7. Optical coherence tomography angiography for the assessment of choroidal vasculature in high myopia
  
  Explore BJO Online Oct 9 2019 Ophthalmology
  
  Aims To assess specific layers of the choroid in highly myopic young adults and to examine their associations with levels of myopia. Methods We recruited 51 young myopes (n=91 eyes) from the Singapore Cohort of Risk Factors for Myopia cohort. We performed standardised optical coherence tomography (OCT) and OCT angiography imaging and developed a novel segmentation technique assessing choroidal layers thickness (overall choroidal thickness (CT), medium-vessel choroidal layer (MVCL ...
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  Mentions: Singapore Eye Research Institute Nanyang Technological University National University of Singapore
8. A Deep Learning Approach to Denoise Optical Coherence Tomography Images of the Optic Nerve Head
  
  Explore Nature Publishing Group Oct 9 2019 Ophthalmology
  
  Optical coherence tomography (OCT) has become an established clinical routine for the in vivo imaging of the optic nerve head (ONH) tissues, that is crucial in the diagnosis and management of various ocular and neuro-ocular pathologies. However, the presence of speckle noise affects the quality of OCT images and its interpretation. Although recent frame-averaging techniques have shown to enhance OCT image quality, they require longer scanning durations, resulting in patient ...
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  Mentions: Medical University of Vienna Singapore Eye Research Institute Nanyang Technological University
9. Anterior Segment Optical Coherence Tomography Is there a Clinical Role in Management of Primary Angle Closure Disease?
  
  Explore LWW Online Sep 7 2019 Ophthalmology
  
  Primary angle-closure disease (PACD) covers a spectrum that includes primary angle-closure suspect (PACS), primary angle-closure (PAC), primary angle-closure glaucoma (PACG), as well as acute primary angle closure (APAC). Accumulating evidence suggests that the pathogenesis of PACD is complex, with multiple contributory factors including variations in the anatomical or biometric characteristics of the angle segment structures. Advances in anterior segment optical coherence tomography (ASOCT) technology have further enhanced our understanding of ...
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  Mentions: Singapore Eye Research Institute National University of Singapore Tin Aung
10. New Concepts in Polypoidal Choroidal Vasculopathy Imaging: A Focus on Optical Coherence Tomography and Optical Coherence Tomography Angiography
  
  Explore Asia-Pacific Academy of Ophthalmology Mar 28 2019 Ophthalmology
  
  Polypoidal choroidal vasculopathy (PCV) is a variant of neovascular age-related macular degeneration. It is characterized by polypoidal dilatations at the terminus of branching vascular network located beneath the retinal pigment epithelium. These polypoidal lesions are best visualized on indocyanine green angiography. With recent advances in ocular imaging, optical coherence tomography (OCT) and OCT angiography (OCTA) have been increasingly used to aid in the diagnosis and monitoring of treatment responses in ...
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  Mentions: National University of Singapore
11. BiOS Hot Topics: Changing of the Guard
  
  Explore Home: SPIE.org Feb 21 2019
  
  ...obal health studies. Zhiwei Huang discussed the work of his group in the Optical Bioimaging Laboratory at the National University of Singapore with spectroscopic cancer detection. He and his team have developed an integr...
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  Mentions: James G. Fujimoto Wolfgang Drexler Leiden University
12. Imaging in myopia: potential biomarkers, current challenges and future developments
  
  Explore BJO Online Jan 12 2019 Ophthalmology
  
  Myopia is rapidly increasing in Asia and around the world, while it is recognised that complications from high myopia may cause significant visual impairment. Thus, imaging the myopic eye is important for the diagnosis of sight-threatening complications, monitoring of disease progression and evaluation of treatments. For example, recent advances in high-resolution imaging using optical coherence tomography may delineate early myopic macula pathology, optical coherence tomography angiography may aid early choroidal ...
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  Mentions: Columbia University Medical University of Vienna Singapore Eye Research Institute
13. Quantitative analysis of choriocapillaris in non-human primates using swept-source optical coherence tomography angiography (SS-OCTA)
  
  Explore OSA | OSA Publishing Dec 26 2018 Ophthalmology
  
  The choriocapillaris is a unique vascular plexus located posterior to the retinal pigment epithelium. In recent years, there is an increasing interest in the examination of the interrelationship between the choriocapillaris and eye diseases. We used several techniques to study choroidal perfusion, including laser Doppler flowmetry, laser speckle flowgraphy, and optical coherence tomography angiography (OCTA), but with the latter no standardized algorithm for quantitative analysis has been provided. We analyzed ...
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  Mentions: Medical University of Vienna Carl Zeiss Meditec Nanyang Technological University
14. Artificial intelligence and deep learning in ophthalmology
  
  Explore BJO Online Oct 25 2018 Ophthalmology
  
  Artificial intelligence (AI) based on deep learning (DL) has sparked tremendous global interest in recent years. DL has been widely adopted in image recognition, speech recognition and natural language processing, but is only beginning to impact on healthcare. In ophthalmology, DL has been applied to fundus photographs, optical coherence tomography and visual fields, achieving robust classification performance in the detection of diabetic retinopathy and retinopathy of prematurity, the glaucoma-like disc ...
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  Mentions: University College London Medical University of Vienna Oregon Health & Science University
15. Comparison Of Optical Coherence Tomography Angiographic Changes After Anti–Vascular Endothelial Growth Factor Therapy Alone Or In Combination With Photodynamic Therapy In Polypoidal Choroidal Vasculopathy
  
  Explore LWW Online Aug 22 2018 Ophthalmology
  
  Purpose: To compare changes in optical coherence tomography angiography in eyes with polypoidal choroidal vasculopathy after treatment with antivascular endothelial growth factor monotherapy or combined with photodynamic therapy . Methods: This is a longitudinal case-controlled study. The authors performed optical coherence tomography angiography at baseline and Month 3 in patients with treatment-naive polypoidal choroidal vasculopathy undergoing monotherapy (n = 10) or combination therapy (n = 13). We analyzed flow signal within the outer ...
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  Mentions: Singapore Eye Research Institute National University of Singapore Tien Yin Wong
16. Spectral Domain-Optical Coherence Tomography Measurements in Alzheimer’s Disease: A Systematic Review and Meta-analysis
  
  Explore ScienceDirect Aug 16 2018 Neurology , Ophthalmology
  
  Topic Optical coherence tomography (OCT) is a non-invasive tool to measure specific retinal layers in the eye. The relationship of retinal spectral domain-OCT (SD-OCT) measurements with Alzheimers Disease (AD) and mild cognitive impairment (MCI) remains unclear. Hence, we conducted a systematic review and meta-analysis to examine the SD-OCT measurements in AD and MCI. Clinical Relevance Current methods of diagnosing early AD are expensive and invasive. Retinal measurements of SD-OCT, which ...
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  Mentions: Singapore Eye Research Institute National University of Singapore The Chinese University of Hong Kong
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