1. Johns Hopkins University

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    1. Mentioned In 454 Articles

    2. Johns Hopkins University Receives NIH Grant for Enabling technology for image-guided robot-assisted sub-retinal injections

      Explore Optical Coherence Tomography News Ophthalmology , Funding
      Johns Hopkins University Receives NIH Grant for Enabling technology for image-guided robot-assisted sub-retinal injections
      ...in the integration of man, machine and computer for the performance of unprecedented microsurgical maneuvers. Johns Hopkins University Receives a 2021 NIH Grant for $468,446 for Enabling technology for image-guided robot...
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      Mentions: Johns Hopkins University National Institutes of Health

    3. Optical Coherence Tomography Angiography-Derived Flux As a Measure of Physiological Changes in Retinal Capillary Blood Flow

      Explore TVST Journal Ophthalmology
      Optical Coherence Tomography Angiography-Derived Flux As a Measure of Physiological Changes in Retinal Capillary Blood Flow
      Purpose: To compare optical coherence tomography angiography (OCTA)-derived flux with conventional OCTA measures of retinal vascular density in assessment of physiological changes in retinal blood flow. Methods: Healthy subjects were recruited, and 3 3-mm2 fovea-centered scans were acquired using commercially available swept-source OCTA (SS-OCTA) while participants were breathing room air, 100% O2, or 5% CO2. Retinal perfusion was quantified using vessel area density (VAD) and vessel skeleton density (VSD ...
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      Mentions: Johns Hopkins University University of Southern California University of Washington

    4. CNN-based CP-OCT sensor integrated with a subretinal injector for retinal boundary tracking and injection guidance

      Explore SPIE Digital Library Ophthalmology
      CNN-based CP-OCT sensor integrated with a subretinal injector for retinal boundary tracking and injection guidance
      Significance: Subretinal injection is an effective way of delivering transplant genes and cells to treat many degenerative retinal diseases. However, the technique requires high-dexterity and microscale precision of experienced surgeons, who have to overcome the physiological hand tremor and limited visualization of the subretinal space. Aim: To automatically guide the axial motion of microsurgical tools (i.e., a subretinal injector) with microscale precision in real time using a fiber-optic common-path ...
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      Mentions: Johns Hopkins University

    5. Stabilizing the phase of swept-source optical coherence tomography by a wrapped Gaussian mixture model

      Explore OSA | OSA Publishing
      Stabilizing the phase of swept-source optical coherence tomography by a wrapped Gaussian mixture model
      The phase of an optical coherence tomography (OCT) signal carries critical information about particle micro-displacements. However, swept-source OCT (SSOCT) suffers from phase instability problems due to trigger jitters from the swept source. In this Letter, a wrapped Gaussian mixture model (WGMM) is proposed to stabilize the phase of SSOCT systems. A closed-form iteration solution of the WGMM is derived using the expectation-maximization algorithm. Necessary approximations are made for real-time graphic ...
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      Mentions: Johns Hopkins University

    6. Processing-Aware Real-Time Rendering for Optimized Tissue Visualization in Intraoperative 4D OCT

      Explore Home - Springer Ophthalmology
      Processing-Aware Real-Time Rendering for Optimized Tissue Visualization in Intraoperative 4D OCT
      Intraoperative Optical Coherence Tomography (iOCT) has advanced in recent years to provide real-time high resolution volumetric imaging for ophthalmic surgery. It enables real-time 3D feedback during precise surgical maneuvers. Intraoperative 4D OCT generally exhibits lower signal-to-noise ratio compared to diagnostic OCT and visualization is complicated by instrument shadows occluding retinal tissue. Additional constraints of processing data rates upwards of 6GB/s create unique challenges for advanced visualization of 4D OCT ...
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      Mentions: Johns Hopkins University Carl Zeiss Meditec Technical University of Munich

    7. Retinal racemose hemangioma (retinal arteriovenous communication) diagnosed and managed with multimodal imaging

      Explore LWW Online Ophthalmology
      Retinal racemose hemangioma (retinal arteriovenous communication) diagnosed and managed with multimodal imaging
      Purpose: Retinal racemose hemangioma (RRH) is a rare congenital abnormality of the retinal vasculature with a variety of secondary manifestations that can cause vision loss, including macular edema. This report aims to demonstrate the utility of swept-source optical coherence tomography angiography (SS-OCTA) in further characterizing this abnormality. Methods: Case report with multimodal imaging including SS-OCTA. Results: A 56-year-old woman with blurred vision was diagnosed macular edema secondary to RRH. Localization ...
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      Mentions: Johns Hopkins University Columbia University

    8. Deep Learning in Biomedical Optics

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      Deep Learning in Biomedical Optics
      This article reviews deep learning applications in biomedical optics with a particular emphasis on image formation. The review is organized by imaging domains within biomedical optics and includes microscopy, fluorescence lifetime imaging, in vivo microscopy, widefield endoscopy, optical coherence tomography, photoacoustic imaging, diffuse tomography, and functional optical brain imaging. For each of these domains, we summarize how deep learning has been applied and highlight methods by which deep learning can ...
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      Mentions: Johns Hopkins University Boston University

    9. Cognitive decline in older adults: What can we learn from optical coherence tomography (OCT)-based retinal vascular imaging?

      Explore American Geriatrics Society Neurology , Ophthalmology
      Cognitive decline in older adults: What can we learn from optical coherence tomography (OCT)-based retinal vascular imaging?
      Introduction: Accumulated vascular damage contributes to the onset and progression of vascular dementia and possibly to Alzheimer's disease. Here we evaluate the feasibility and utility of using retinal imaging of microvascular markers to identify older adults at risk of cognitive disease. Methods: The "Eye Determinants of Cognition" (EyeDOC) study recruited a biracial, population-based sample of participants from two sites: Jackson, MS, and Washington Co, MD. Optical coherence tomographic angiography ...
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      Mentions: Johns Hopkins University Oregon Health & Science University

    10. The APOSTEL 2.0 Recommendations for Reporting Quantitative Optical Coherence Tomography Studies

      Explore Neurology Neurology
      The APOSTEL 2.0 Recommendations for Reporting Quantitative Optical Coherence Tomography Studies
      Objective: To update the consensus recommendations for reporting of quantitative optical coherence tomography (OCT) study results, thus revising the previously published Advised Protocol for OCT Study Terminology and Elements (APOSTEL) recommendations. Methods: To identify studies reporting quantitative OCT results, we performed a PubMed search for the terms "quantitative" and "optical coherence tomography" from 2015 to 2017. Corresponding authors of the identified publications were invited to provide feedback on the initial ...
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      Mentions: University of Toronto Johns Hopkins University University College London

    12. Choroidal Vascular Changes in Acute Idiopathic Maculopathy as Demonstrated by Multimodal Imaging including Optical Coherence Tomography Angiography

      Explore Hindawi Publishing Corporation Ophthalmology
      Choroidal Vascular Changes in Acute Idiopathic Maculopathy as Demonstrated by Multimodal Imaging including Optical Coherence Tomography Angiography
      Purpose . To present a case of acute idiopathic maculopathy (AIM) and illustrate primary choroidal perfusion defect using multimodal imaging. Case Description . We report a case of a 24-year-old man with a paracentral scotoma of the right eye and recent flu-like illness. The patient was found to have a unilateral ovoid-shaped, placoid lesion just inferior to the fovea. Multimodal imaging confirmed findings most consistent with a diagnosis of acute idiopathic maculopathy ...
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      Mentions: Johns Hopkins University University of Minnesota

    13. Real-time tool to layer distance estimation for robotic subretinal injection using intraoperative 4D OCT

      Explore OSA | OSA Publishing Ophthalmology
      Real-time tool to layer distance estimation for robotic subretinal injection using intraoperative 4D OCT
      The emergence of robotics could enable ophthalmic microsurgical procedures that were previously not feasible due to the precision limits of manual delivery, for example, targeted subretinal injection. Determining the distance between the needle tip, the internal limiting membrane (ILM), and the retinal pigment epithelium (RPE) both precisely and reproducibly is required for safe and successful robotic retinal interventions. Recent advances in intraoperative optical coherence tomography (iOCT) have opened the path ...
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      Mentions: Johns Hopkins University Technical University of Munich

    15. Johns Hopkins University Receives NIH Grant for Artificial Intelligence Optical Coherence Tomography Guided Deep Anterior Lamellar Kerotoplasty (Auto-Dalk)

      Explore Optical Coherence Tomography News Ophthalmology , Funding
      Johns Hopkins University Receives NIH Grant for Artificial Intelligence Optical Coherence Tomography Guided Deep Anterior Lamellar Kerotoplasty (Auto-Dalk)
      ...he manually performed trephine cutting and Big Bubble pneumodissection.

      Johns Hopkins University Receives a 2021 NIH Grant for $409,997 for Artificial Intelligence Optical Coher...

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      Mentions: Johns Hopkins University National Institutes of Health

    16. Standardization of optical coherence tomography angiography nomenclature in retinal vascular diseases: first survey results

      Explore ScienceDirect Ophthalmology
      Standardization of optical coherence tomography angiography nomenclature in retinal vascular diseases: first survey results
      Purpose: To develop a consensus nomenclature for optical coherence tomography angiography (OCTA) findings in retinal vascular diseases. Design: Online survey using Delphi Method SUBJECTS, PARTICIPANTS AND/OR CONTROLS: Members of The Retina Society, European Society of Retina Specialists (EURETINA) and the Japanese Retina and Vitreous Society (JRVS). Methods, intervention, or testing: An online questionnaire on OCTA terminology in retinal vascular diseases was sent to members of The Retina Society, EURETINA ...
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      Mentions: Johns Hopkins University Case Western Reserve University University of Bern
    17. 1-15 of 454 1 2 3 4 ... 29 30 31 »
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  4. About Johns Hopkins University

    Johns Hopkins University

    John Hopkins University mission is to educate its students and cultivate their capacity for life-long learning, to foster independent and original research, and to bring the benefits of discovery to the world.  Hopkins now uses one overarching name - Johns Hopkins Medicine -to identify its whole medical enterprise. This $4 billion virtual organization unites the physicians and scientists of The Johns Hopkins University School of Medicine with the health professionals and facilities that make up the broad Johns Hopkins Health System.  The Wilmer Eye Institute at Johns Hopkins has long been recognized for bringing together ophthalmologists consistently ranked by their peers as among the finest internationally, with a specially trained and highly experienced team of nurses cited by patients for their knowledge, responsiveness, and sensitivity. Johns Hopkins Multiple Sclerosis Center is one of the largest clinical and research MS centers in the world.

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