1. Chinese Academy of Sciences

    0 Comments Leave a Comment

    1-15 of 70 1 2 3 4 5 »
    1. Mentioned In 70 Articles

    2. Anterior Segment Inflammation in Pediatric Uveitis Is Associated with Reduced Retinal Vascular Density as Quantified by Optical Coherence Tomography Angiography

      Anterior Segment Inflammation in Pediatric Uveitis Is Associated with Reduced Retinal Vascular Density as Quantified by Optical Coherence Tomography Angiography
      Purpose To analyze the retinal capillary vascular density (VD) as quantified by optical coherence tomography angiography (OCTA) in patients with pediatric uveitis. Methods OCTA images of 32 pediatric uveitis patients and 30 normal controls (NC) were obtained retrospectively. The foveal avascular zone (FAZ) area, VDs in the superficial capillary plexus (SCP) and deep capillary plexus (DCP), the central macular thickness (CMT), and subfoveal choroidal thickness (SFCT) were analyzed and compared ...
      Read Full Article
    3. Transient reduction in macular deep capillary density on optical coherence tomography angiography after phacoemulsification surgery in diabetic patients

      Transient reduction in macular deep capillary density on optical coherence tomography angiography after phacoemulsification surgery in diabetic patients
      Background To evaluate macular microvascular changes and associated factors in diabetic patients following uncomplicated phacoemulsification surgery. Methods In this prospective observational study, we enrolled diabetic patients and non-diabetic controls who underwent phacoemulsification surgery. Participants were examined at postoperative day 1 (POD1), 10 (POD10), 30 (POD30), and 90 (POD90), using macular 3x3mm OCT angiography scan (RTVue-XR Avanti; Optovue, Inc., Fremont, CA). Integrated automated algorithms were used to quantify parafoveal vessel density ...
      Read Full Article
    4. The effect of software versions on the measurement of retinal vascular densities using optical coherence tomography angiography

      The effect of software versions on the measurement of retinal vascular densities using optical coherence tomography angiography
      Background The goal of the study was to determine the effect of different software versions on the measurement of retinal vessel densities using optical coherence tomography angiography (OCTA) in normal subjects. Methods Thirty-two eyes of eighteen healthy subjects were imaged using two OCTA devices: the Optovue RTVue and the Zeiss Cirrus. The macular 3 3 mm scan protocol was used. The images acquired using the Optovue OCTA device were exported ...
      Read Full Article
    5. Clinical efficacy of optical coherence tomography in sellar mass lesions: a meta-analysis

      Clinical efficacy of optical coherence tomography in sellar mass lesions: a meta-analysis
      Purpose Although optical coherence tomography (OCT) of the eyes has been studied to detect and monitor sellar masses, there is no recommendation for selecting the most effective measurement of OCT in clinical practice. Thus, we conducted a meta-analysis to examine the efficacy of OCT in sellar mass lesions. Methods We conducted a literature search in PubMed and EMBASE through April 26, 2020. The primary outcomes were the thickness of the ...
      Read Full Article
    6. Visualization of deep choroidal vasculatures and measurement of choroidal vascular density: a swept-source optical coherence tomography angiography approach

      Visualization of deep choroidal vasculatures and measurement of choroidal vascular density: a swept-source optical coherence tomography angiography approach
      Background To investigate swept-source optical coherence tomography angiography (SS-OCTA) for deep choroid visualization and choroidal vascular density (CVD) measurement. Methods Healthy subjects and central serous chorioretinopathy (CSC) patients were recruited for macular SS-OCTA scans. We evaluated OCTA images at various depths to determine an optimal depth for visualizing choroidal vasculatures. We measured CVD with binarized OCTA images at the optimal depth. In healthy subjects, CVD was studied for its correlation ...
      Read Full Article
    7. Speckle reduction of OCT via super resolution reconstruction and its application on retinal layer segmentation

      Speckle reduction of OCT via super resolution reconstruction and its application on retinal layer segmentation
      Optical coherence tomography (OCT) is a rapidly developing non-invasive three dimensional imaging approach, and it has been widely used in examination and diagnosis of eye diseases. However, speckle noise are often inherited from image acquisition process, and may obscure the anatomical structure, such as the retinal layers. In this paper, we propose a novel method to reduce the speckle noise in 3D OCT scans, by introducing a new super-resolution approach ...
      Read Full Article
    8. Cilioretinal arteries and macular vasculature in highly myopic eyes: an OCT–angiography-based study

      Cilioretinal arteries and macular vasculature in highly myopic eyes: an OCT–angiography-based study
      Purpose To determine the association between the presence of cilioretinal arteries and the macular vasculature in highly myopic eyes using optical coherence tomography angiography (OCTA). Design Retrospective, observational case series. Participants 481 highly myopic eyes of 481 patients. Methods Fundus photographs were reviewed to determine the presence of a cilioretinal artery and its distribution, based on whether its path or visible branches reached the region within 500 m of the ...
      Read Full Article
    9. Quantification of Microvascular Density of the Optic Nerve Head in Diabetic Retinopathy Using Optical Coherence Tomographic Angiography

      Quantification of Microvascular Density of the Optic Nerve Head in Diabetic Retinopathy Using Optical Coherence Tomographic Angiography
      Aims . To quantify the capillary density of the optic nerve head in healthy control eyes and different stages of diabetic retinopathy (DR) eyes and identify the parameters to detect eyes with or without DR using optical coherence tomographic angiography (OCTA). Methods . In this cross-sectional study, 211 eyes of 121 participants with type 2 diabetes with different stages of DR or without DR and 73 eyes of 38 healthy age-matched controls ...
      Read Full Article
    10. Automatic Segmentation and Visualization of Choroid in OCT with Knowledge Infused Deep Learning

      Automatic Segmentation and Visualization of Choroid in OCT with Knowledge Infused Deep Learning
      The choroid provides oxygen and nourishment to the outer retina thus is related to the pathology of various ocular diseases. Optical coherence tomography (OCT) is advantageous in visualizing and quantifying the choroid in vivo, because it does not suffer from the information contamination of the outer retina in fundus photography and scanning laser ophthalmoscopy and the resolution deficiency in ocular ultrasound. We propose a biomarker infused global-to-local network, for the ...
      Read Full Article
    11. Application of machine learning method in optical molecular imaging: a review

      Application of machine learning method in optical molecular imaging: a review
      Optical molecular imaging (OMI) is an imaging technology that uses an optical signal, such as near-infrared light, to detect biological tissue in organisms. Because of its specific and sensitive imaging performance, it is applied in both preclinical research and clinical surgery. However, it requires heavy data analysis and a complex mathematical model of tomographic imaging. In recent years, machine learning (ML)-based artificial intelligence has been used in different fields ...
      Read Full Article
    12. BIONET: INFUSING BIOMARKER PRIOR INTO GLOBAL-TO-LOCAL NETWORK FOR CHOROID SEGMENTATION IN OPTICAL COHERENCE TOMOGRAPHY IMAGES

      BIONET: INFUSING BIOMARKER PRIOR INTO GLOBAL-TO-LOCAL NETWORK FOR CHOROID SEGMENTATION IN OPTICAL COHERENCE TOMOGRAPHY IMAGES
      Choroid is the vascular layer of the eye, which is directly related to the incidence and severity of many ocular diseases. Optical Coherence Tomography (OCT) is capable of imaging both the cross-sectional view of retina and choroid, but the segmentation of the choroid region is challenging because of the fuzzy choroid-sclera interface (CSI). In this paper, we propose a biomarker infused global-to-local network (BioNet) for choroid segmentation, which segments the ...
      Read Full Article
    13. Three-dimensional choroidal vascularity index in acute central serous chorioretinopathy using swept-source optical coherence tomography

      Three-dimensional choroidal vascularity index in acute central serous chorioretinopathy using swept-source optical coherence tomography
      Purpose To evaluate the three-dimensional choroidal vascularity index (CVI) in the eyes with treatment-nave acute central serous chorioretinopathy (CSC) using swept-source optical coherence tomography (SS OCT). Methods In this prospective cross-sectional study, OCT and OCT angiography covered an area of 12 12 mm centered on the fovea. Three-dimensional CVI was defined as the ratio of the choroidal vascular luminal volume to the total choroidal volume. The location of pigment epithelial ...
      Read Full Article
    14. Longitudinal neovascular changes on optical coherence tomography angiography in proliferative diabetic retinopathy treated with panretinal photocoagulation alone versus with intravitreal conbercept plus panretinal photocoagulation: a pilot study

      Longitudinal neovascular changes on optical coherence tomography angiography in proliferative diabetic retinopathy treated with panretinal photocoagulation alone versus with intravitreal conbercept plus panretinal photocoagulation: a pilot study
      Purpose To investigate the longitudinal changes in neovascularization of the retinal elsewhere (NVE) size on optical coherence tomography angiography (OCTA) in proliferative diabetic retinopathy (PDR) treated by panretinal photocoagulation (PRP) alone or by single intravitreal conbercept injection plus PRP. Methods A prospective pilot study. Forty-four PDR eyes with NVE confirmed by fundus fluorescein angiography (FFA) and OCTA were included. They were assigned to receive PRP alone (PRP group) or intravitreal ...
      Read Full Article
    15. PERCEPTUAL-ASSISTED ADVERSARIAL ADAPTATION FOR CHOROID SEGMENTATION IN OPTICAL COHERENCE TOMOGRAPHY

      PERCEPTUAL-ASSISTED ADVERSARIAL ADAPTATION FOR CHOROID SEGMENTATION IN OPTICAL COHERENCE TOMOGRAPHY
      Accurate choroid segmentation in optical coherence tomography (OCT) image is vital because the choroid thickness is a major quantitative biomarker of many ocular diseases. Deep learning has shown its superiority in the segmentation of the choroid region but subjects to the performance degeneration caused by the domain discrepancies (e.g., noise level and distribution) among datasets obtained from the OCT devices of different manufacturers. In this paper, we present an ...
      Read Full Article
    16. Automatic fibroatheroma identification in intravascular optical coherence tomography volumes

      Automatic fibroatheroma identification in intravascular optical coherence tomography volumes
      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 ...
      Read Full Article
    17. 1-15 of 70 1 2 3 4 5 »
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. About Chinese Academy of Sciences

    Chinese Academy of Sciences

    Chinese Academy of Sciences (CAS) is a leading academic institution and comprehensive research and development center in natural science, technological science and high-tech innovation in China. It was founded in Beijing on 1st November 1949 on the basis of the former Academia Sinica (Central Academy of Sciences) and Peiping Academy of Sciences.