Articles that mention Case Western Reserve University -Optical Coherence Tomography News

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2. Standardisation of optical coherence tomography angiography nomenclature in uveitis: first survey results
  
  Explore BJO Online Jul 31 2020 Ophthalmology
  
  Aim To standardise the nomenclature for reporting optical coherence angiography (OCT-A) findings in the field of uveitis. Methods Members of the International Uveitis Study Group, of the American Uveitis Society and of the Sociedad Panamericana de Infermedades Oculares that choose to participate responded to an online questionnaire about their preferred terminology when reporting on OCT-A findings in uveitis. The response of individuals with several publications on OCT-A (experts) was compared ...
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  Mentions: Case Western Reserve University Leiden University Northwestern University
3. Case Western Reserve University Receives NIH Grant for Computer Assisted Coronary Artery Stent Interventions
  
  Explore Optical Coherence Tomography News Jun 30 2020 Cardiology , Funding
  
  ... will build on expertise in interventions, quantitative image analysis of IVOCT, and finite element modeling. Case Western Reserve University Receives a 2020 NIH Grant for $727,994 for Computer Assisted Coronary Artery S...
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  Mentions: National Institutes of Health Case Western Reserve University
4. Case Western Reserve University Receives NIH Grant for Noninvasive Assessment of the Cornea by Diffusion OCT
  
  Explore Optical Coherence Tomography News Jun 9 2020 Ophthalmology , Funding
  
  ...ift from empirical planning and risk analysis to patient-specific strategies.
  Case Western Reserve University Receives a 2020 NIH Grant for $560,406 for Noninvasive Assessment of the Corne...
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  Mentions: Andrew M. Rollins National Institutes of Health Case Western Reserve University
5. Imaging of Atrioventricular Nodal Conduction Tissue in Porcine Hearts Using Optical Coherence Tomography
  
  Explore Innovations in Cardiac Rhythm Management Jun 2 2020 Developmental Biology
  
  Optical coherence tomography (OCT) employs near-infrared light to image the microstructure of different tissues. Clinically, it has been used to image the walls of coronary arteries. In research settings, one of the applications for OCT is visualizing endocardial and subendocardial structures. The present experiment sought to determine whether OCT can identify native conduction tissues in adult porcine hearts. During the study, the right atrial endocardial surfaces of excised adult porcine ...
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  Mentions: Andrew M. Rollins Case Western Reserve University Michael W. Jenkins
6. Wide-field optical coherence tomography angiography for the detection of proliferative diabetic retinopathy
  
  Explore Home - Springer Jun 1 2020 Ophthalmology
  
  Purpose To compare the ability of wide-field optical coherence tomography angiography (WF-OCTA) to that of ultra-wide field fluorescein angiography (UWF-FA) and ultra-wide-field color fundus photography (UWF-CP) to detect retinal neovascularization (NV) in eyes with proliferative diabetic retinopathy (PDR). Methods In this cross-sectional study, nave patients with active PDR underwent UWF-FA and UWF-CP using the Optos 200Tx and WF-OCTA with 1212 mm fields of five visual fixations using the PLEX Elite ...
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  Mentions: Case Western Reserve University Tufts University Optos
7. Intracardiac radiofrequency ablation in living swine guided by polarization-sensitive optical coherence tomography
  
  Explore SPIE Digital Library May 12 2020 Cardiology
  
  Significance: Pulmonary vein isolation with catheter-based radiofrequency ablation (RFA) is carried out frequently to treat atrial fibrillation. However, RFA lesion creation is only guided by indirect information (e.g., temperature, impedance, and contact force), which may result in poor lesion quality (e.g., nontransmural) and can lead to reoccurrence or complications. Aim: The feasibility of guiding intracardiac RFA with an integrated polarization-sensitive optical coherence tomography (PSOCT)-RFA catheter in the ...
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  Mentions: Andrew M. Rollins Case Western Reserve University Michael W. Jenkins
8. Fully automated plaque characterization in intravascular OCT images using hybrid convolutional and lumen morphology features
  
  Explore Nature Publishing Group Feb 16 2020 Cardiology
  
  For intravascular OCT (IVOCT) images, we developed an automated atherosclerotic plaque characterization method that used a hybrid learning approach, which combined deep-learning convolutional and hand-crafted, lumen morphological features. Processing was done on innate A-line units with labels fibrolipidic (fibrous tissue followed by lipidous tissue), fibrocalcific (fibrous tissue followed by calcification), or other. We trained/tested on an expansive data set (6,556 images), and performed an active learning, relabeling step ...
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  Mentions: Case Western Reserve University Cleveland Clinic David L. Wilson
9. Application and Evaluation of Highly Automated Software for Comprehensive Stent Analysis in Intravascular Optical Coherence Tomography
  
  Explore Nature Publishing Group Feb 12 2020 Cardiology
  
  Intravascular optical coherence tomography (IVOCT) is used to assess stent tissue coverage and malapposition in stent evaluation trials. We developed the OCT Image Visualization and Analysis Toolkit for Stent (OCTivat-Stent), for highly automated analysis of IVOCT pullbacks. Algorithms automatically detected the guidewire, lumen boundary, and stent struts; determined the presence of tissue coverage for each strut; and estimated the stent contour for comparison of stent and lumen area. Strut-level tissue ...
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  Mentions: Massachusetts Institute of Technology Case Western Reserve University Zhao Wang
10. Biophotonic Investigation of Cardiac Structure and Hemodynamics During Embryogenesis Using Optical Coherence Tomography (Thesis)
  
  Explore OhioLINK ETD Center Feb 2 2020 Cardiology , Developmental Biology
  
  Congenital heart disease/defects (CHDs) account for approximately one-third of all birth defects globally. Many of these will require invasive treatment within the first year of life, subsequent interventions, and a lifetime of monitoring. Alcohol has been known as a teratogen for several decades, and prenatal exposure alone is a significant cause of worldwide CHDs. Optical Coherence Tomography (OCT) has been used as an imaging modality for nearly three decades ...
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  Mentions: Case Western Reserve University
11. Optical Coherence Tomography-Based Modeling of Stent Deployment in Heavily Calcified Coronary Lesion
  
  Explore ASME Digital Collection Jan 28 2020 Cardiology
  
  In this work, a heavily calcified coronary artery model was reconstructed from optical coherence tomography (OCT) images to investigate the impact of calcification characteristics on stenting outcomes. The calcification was quantified at various cross sections in terms of angle, maximum thickness, and area. The stent deployment procedure, including the crimping, expansion, and recoil, was implemented. The influence of calcification characteristics on stent expansion, malapposition, and lesion mechanics was characterized. Results ...
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  Mentions: Case Western Reserve University David L. Wilson Hiram G. Bezerra
12. Automated plaque characterization using deep learning on coronary intravascular optical coherence tomographic images
  
  Explore OSA | OSA Publishing Dec 1 2019 Cardiology
  
  Accurate identification of coronary plaque is very important for cardiologists when treating patients with advanced atherosclerosis. We developed fully-automated semantic segmentation of plaque in intravascular OCT images. We trained/tested a deep learning model on a folded, large, manually annotated clinical dataset. The sensitivities/specificities were 87.4%/89.5% and 85.1%/94.2% for pixel-wise classification of lipidous and calcified plaque, respectively. Automated clinical lesion metrics, potentially useful ...
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  Mentions: Case Western Reserve University David L. Wilson Hiram G. Bezerra
13. Polarization sensitive optical coherence tomography using multiple polarization sensitive semiconductor optical amplifiers
  
  Explore uspto.gov Nov 19 2019 Patents
  
  This disclosure relates to an OCT apparatus configured to generate to electromagnetic (e.g., optical) signals having two different polarization states. Two or more silicon optical amplifiers (SOAs) can be configured to maintain a respective polarization state in an optical input signal provided from a light source (e.g., a broadband light source). The different polarization states can be combined by an optical combiner (e.g., a polarization maintaining fiber ...
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  Mentions: Andrew M. Rollins Case Western Reserve University Hui Wang
14. Automated intravascular plaque classification
  
  Explore uspto.gov Oct 22 2019 Cardiology , Patents
  
  Methods and apparatus automatically classify intravascular plaque using features extracted from intravascular optical coherence tomography (IVOCT) imagery. One example apparatus includes an image acquisition circuit that accesses a set of IVOCT images, a pre-processing circuit that generates a blood vessel mask based on the IVOCT images, a feature extraction circuit that defines a three dimensional (3D) volume of interest centered on a location in a member of the set of ...
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  Mentions: Case Western Reserve University David L. Wilson
15. Automated A-line coronary plaque classification of intravascular optical coherence tomography images using handcrafted features and large datasets
  
  Explore SPIE Digital Library Oct 9 2019 Cardiology
  
  We developed machine learning methods to identify fibrolipidic and fibrocalcific A-lines in intravascular optical coherence tomography (IVOCT) images using a comprehensive set of handcrafted features. We incorporated features developed in previous studies (e.g., optical attenuation and A-line peaks). In addition, we included vascular lumen morphology and three-dimensional (3-D) digital edge and texture features. Classification methods were developed using expansive datasets (7000images), consisting of both clinical in-vivo images and an ...
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  Mentions: Case Western Reserve University David L. Wilson Hiram G. Bezerra
16. Optical coherence tomography diagnostic signs in posterior uveitis
  
  Explore ScienceDirect Sep 14 2019 Ophthalmology
  
  A diagnostic sign refers to a quantifiable biological parameter that is measured and evaluated as an indicator of normal biological, pathogenic, or pharmacologic responses to a therapeutic intervention. When used in translational research discussions, the term itself often alludes to a signs used to accelerate or aid in diagnosis or monitoring and provide insight into personalized medicine. Many new diagnostic signs are being developed that involve imaging technology. Optical coherence ...
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  Mentions: Case Western Reserve University Northwestern University University of Sydney
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