1. Articles mentioning both Cynthia A. Toth and Duke University

    1-24 of 136 1 2 3 4 5 6 »
    1. OCULAR MANIFESTATIONS OF PORETTI-BOLTSHAUSER SYNDROME: FINDINGS FROM MULTIMODAL IMAGING AND ELECTROPHYSIOLOG

      OCULAR MANIFESTATIONS OF PORETTI-BOLTSHAUSER SYNDROME: FINDINGS FROM MULTIMODAL IMAGING AND ELECTROPHYSIOLOG
      Background/Purpose: Poretti-Boltshauser syndrome is a rare, nonprogressive neurologic syndrome with characteristic cerebellar cysts on neuroimaging due to mutations in LAMA1 . The ophthalmic findings in Poretti-Boltshauser syndrome are not well described. Here, we report the ophthalmic findings from multimodal imaging and electrophysiology of a patient with genetically confirmed Poretti-Boltshauser syndrome . Methods: A 3-year-old boy with confirmed mutations in LAMA1 underwent examination under anesthesia with electroretinography and multimodal imaging including fundus ...
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    2. Microvascular Features of Treated Retinoblastoma Tumors in Children Assessed Using OCTA

      Microvascular Features of Treated Retinoblastoma Tumors in Children Assessed Using OCTA
      BACKGROUND AND OBJECTIVE: To describe the microvascular features of treated, clinically regressed, or reactivated retinoblastoma lesions using an investigational portable optical coherence tomography angiography (OCTA) system. PATIENTS AND METHODS: Single-center, prospective, cross-sectional, consecutive case-series of children with previously treated retinoblastoma who underwent portable OCTA of posterior retinoblastoma lesions. RESULTS: Eight tumors from seven eyes of five children with retinoblastoma were included. Tumors with types 1 (calcified remnant, n = 3), 2 ...
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    3. HANDHELD SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY FINDINGS OF X-LINKED RETINOSCHISIS IN EARLY CHILDHOOD

      HANDHELD SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY FINDINGS OF X-LINKED RETINOSCHISIS IN EARLY CHILDHOOD
      Background/Purpose: Using handheld spectral domain optical coherence tomography (SDOCT) imaging to investigate in vivo microanatomic retinal changes and their progression over time in young children with juvenile X-linked retinoschisis (XLRS). Methods: This retrospective analysis was of handheld SD OCT images obtained under a prospective research protocol in children who had established XLRS diagnosis based on genetic testing or clinical history. Three OCT graders performed standardized qualitative and quantitative assessment ...
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    4. Appearance of pediatric choroidal neovascular membranes on optical coherence tomography angiography

      Appearance of pediatric choroidal neovascular membranes on optical coherence tomography angiography
      Purpose Compared with fluorescein angiography (FA), the gold standard for diagnosing choroidal neovascularization (CNV) activity, optical coherence tomography angiography (OCTA) is non-invasive without risks associated with fluorescein dye use, and may be especially advantageous in the diagnosis and monitoring of children with CNV. Methods Eight eyes from eight patients aged 12 months to 18 years were imaged with the investigational Spectralis OCTA (version 6.9, Heidelberg Engineering, Heidelberg, Germany) and ...
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    5. Handheld Optical Coherence Tomography Normative Inner Retinal Layer Measurements for Children <5 Years

      Handheld Optical Coherence Tomography Normative Inner Retinal Layer Measurements for Children <5 Years
      Purpose Measurements of the ganglion cell complex (GCC), comprising the retinal nerve fiber (RNFL), ganglion cell, and inner plexiform layers, can be correlated with vision loss caused by optic nerve disease. Handheld optical coherence tomography (HH-OCT) can be used with sedation in children not amenable to traditional imaging. Purpose: to report GCC and RNFL measurements in normal children using HH-OCT. Design Prospective observational study of normal children 5-years of age ...
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    6. Duke University Receives NIH Grant for Bedside Optical Retinal Assessment of Hypoxic Ischemic Encephalopathy in Infants.

      Duke University Receives NIH Grant for Bedside Optical Retinal Assessment of Hypoxic Ischemic Encephalopathy in Infants.
      ...dside Optical Retinal Assessment of Hypoxic Ischemic Encephalopathy in Infants. The principal investigator is Cynthia Toth. The program began in 2018 and ends in 2020. Below is a summary of the proposed work.

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    7. Handheld Optical Coherence Tomography Normative Inner Retinal Layer Measurements for Children

      Handheld Optical Coherence Tomography Normative Inner Retinal Layer Measurements for Children
      Purpose Measurements of the ganglion cell complex (GCC), comprising the retinal nerve fiber (RNFL), ganglion cell, and inner plexiform layers, can be correlated with vision loss caused by optic nerve disease. Handheld optical coherence tomography (HH-OCT) can be used with sedation in children not amenable to traditional imaging. Purpose: to report GCC and RNFL measurements in normal children using HH-OCT. Design Prospective observational study of normal children 5-years of age ...
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    8. Macular Microvascular Findings in Familial Exudative Vitreoretinopathy on Optical Coherence Tomography Angiography

      Macular Microvascular Findings in Familial Exudative Vitreoretinopathy on Optical Coherence Tomography Angiography
      BACKGROUND AND OBJECTIVE: To describe depth-resolved macular microvasculature abnormalities in patients with familial exudative vitreoretinopathy (FEVR) using optical coherence tomography angiography (OCTA). PATIENTS AND METHODS: Twenty-two eyes (11 eyes of six patients with FEVR and 11 control eyes) were imaged with OCTA. Graders qualitatively analyzed the OCTA images of the superficial and deep vascular complexes for abnormal vascular features and compared to fluorescein angiography (FA). RESULTS: Seven of 11 eyes ...
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    9. Handbook of Pediatric Retinal OCT and the Eye-Brain Connection 1st Edition (Textbook)

      Handbook of Pediatric Retinal OCT and the Eye-Brain Connection 1st Edition (Textbook)
      Optical Coherence Tomography (OCT) plays a vital role in pediatric retina diagnosis , often revealing unrecognized retinal disorders and connections to brain injury, disease, and delayed neurodevelopment. Handbook of Pediatric Retinal OCT and the Eye-Brain Connection provides authoritative, up-to-date guidance in this promising area , showing how to optimize imaging in young children and infants, how to accurately interpret these images, and how to identify links between these images and brain and ...
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    10. Best Clinical Practice for Age-Related Macular Degeneration Imaging

      Best Clinical Practice for Age-Related Macular Degeneration Imaging
      Purpose: To identify best clinical practices for macular degeneration imaging. Methods: We reviewed best clinical practices for imaging patients with age-related macular degeneration. These recommendations are based on different levels of evidence (I-III). Results: The type of imaging needed depends to some degree on the clinical scenario: first visit vs follow-up visit vs poorly responsive patient. Conclusions: Imaging technologies that may be useful include optical coherence tomography, fundus photography, fundus ...
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    11. Stereoscopic display systems and methods for displaying surgical data and information in a surgical microscope

      Stereoscopic display systems and methods for displaying surgical data and information in a surgical microscope
      Stereoscopic display systems and methods for displaying surgical data and information in a surgical microscope are disclosed herein. According to an aspect, a system includes first and second eyepieces. The system includes a display having first and second display portions, configured to display first images in the first display portion, and configured to display second images in the second display portion. The first image and the second image are projected ...
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    12. Duke University Receives NIH Grant for Analyzing Retinal Microanatomy in Retinopathy of Prematurity to Improve Care

      Duke University Receives NIH Grant for Analyzing Retinal Microanatomy in Retinopathy of Prematurity to Improve Care
      ...r Analyzing Retinal Microanatomy in Retinopathy of Prematurity to Improve Care. The principal investigator is Cynthia Toth. The program began in 2016 and ends in 2020. Below is a summary of the proposed work. Retinopath...
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    13. Comparison of Optical Coherence Tomography With Fundus Photographs, Fluorescein Angiography, and Histopathologic Analysis in Assessing Coats Disease

      Comparison of Optical Coherence Tomography With Fundus Photographs, Fluorescein Angiography, and Histopathologic Analysis in Assessing Coats Disease
      Importance Coats disease is a rare pediatric vitreoretinopathy that can cause devastating visual and anatomic outcomes. Objective To compare optical coherence tomography (OCT) with fundus photographs, fluorescein angiography (FA), and histopathologic findings in Coats disease. Design, Setting, and Participants This retrospective cohort study was conducted in a single tertiary institution (Duke Eye Center) and identified 28 children with Coats disease through a review of medical records from December 2002 to ...
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    14. Depth-Based, Motion-Stabilized Colorization of Microscope-Integrated Optical Coherence Tomography Volumes for Microscope-Independent Microsurgery

      Depth-Based, Motion-Stabilized Colorization of Microscope-Integrated Optical Coherence Tomography Volumes for Microscope-Independent Microsurgery
      Purpose : We develop and assess the impact of depth-based, motion-stabilized colorization (color) of microscope-integrated optical coherence tomography (MIOCT) volumes on microsurgical performance and ability to interpret surgical volumes. Methods : Color was applied in real-time as gradients indicating axial position and stabilized based on calculated center of mass. In a test comparing colorization versus grayscale visualizations of prerecorded intraoperative volumes from human surgery, ophthalmologists ( N = 7) were asked to identify retinal ...
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    15. Intraoperative OCT Guidance of Intraocular Surgery II

      Intraoperative OCT Guidance of Intraocular Surgery II
      The overall five-year goals of the project are to develop novel technology to provide actionable new information through provision of live volumetric imaging during surgery, improving surgical practice and outcomes. The investigators believe this technology will enable novel ophthalmic and other microsurgeries not possible due to current limitations in surgical visualization.
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    16. Vascular Findings In A Small Retinoblastoma Tumor Using OCT-A

      Vascular Findings In A Small Retinoblastoma Tumor Using OCT-A
      Retinoblastoma (RB) is the most common primary intraocular malignancy of children. 1 Improvements in screening tactics and treatment methods have dramatically increased both patient and globe survival. 1,2 Imaging modalities such as fluorescein angiography (FA) have demonstrated retinal vascular abnormalities in both large and small caliber retinal vessels in eyes with retinoblastoma, 1 and optical coherence tomography (OCT) can reveal or confirm otherwise subclinical lesions. 2 OCT angiography (OCT-A ...
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    17. Imaging infant retinal vasculature with optical coherence tomography angiography

      Imaging infant retinal vasculature with optical coherence tomography angiography
      Study of infant retinal vascular development has been limited to histopathological reports. We report herein depth-resolved visualization of full-term infant parafoveal microvasculature and their similarity to that of young children using a portable optical coherence tomography angiography system.
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    18. Macular Features on Spectral-Domain Optical Coherence Tomography Imaging Associated With Visual Acuity in Coats' Disease

      Macular Features on Spectral-Domain Optical Coherence Tomography Imaging Associated With Visual Acuity in Coats' Disease
      Purpose : To investigate the association between macular features on spectral-domain optical coherence tomography (SD-OCT) and visual acuity (VA) in Coats' disease. Methods : Thirty-nine eyes (39 patients) with SD-OCT from January 1, 2008 to December 31, 2016 were reviewed for SD-OCT features. Central subfield (CSF) SD-OCT findings were analyzed relative to VA (logarithm of the minimum angle of resolution) at baseline and final visit (when follow-up 6 months) and across visits ...
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    19. Method and system for improving aiming during optical coherence tomography on young children by synchronization with retinal bifringence scanning

      Method and system for improving aiming during optical coherence tomography on young children by synchronization with retinal bifringence scanning
      The present invention is directed to a method and system for improved aiming during Optical Coherence Tomography (OCT) on young children and those unable to cooperate with OCT imaging by synchronization with retinal birefringence scanning (RBS). OCT is performed without knowing whether or not the subject is looking at the intended target. The present invention combines OCT retinal imaging, such as, but not limited to, time domain OCT, SDOCT, or ...
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    20. Volumetric Measurement of Subretinal Blebs Using Microscope-Integrated Optical Coherence Tomography

      Volumetric Measurement of Subretinal Blebs Using Microscope-Integrated Optical Coherence Tomography
      Purpose : We advance studies of subretinal treatments by developing a microscope-integrated optical coherence tomography (MIOCT) image-based method for measuring the volume of therapeutics delivered into the subretinal space. Methods : A MIOCT image-based volume measurement method was developed and assessed for accuracy and reproducibility by imaging an object of known size in model eyes. This method then was applied to subretinal blebs created by injection of diluted triamcinolone. Bleb volumes obtained ...
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    21. VISUALIZATION FROM INTRAOPERATIVE SWEPT-SOURCE MICROSCOPE-INTEGRATED OPTICAL COHERENCE TOMOGRAPHY IN VITRECTOMY FOR COMPLICATIONS OF PROLIFERATIVE DIABETIC RETINOPATHY

      VISUALIZATION FROM INTRAOPERATIVE SWEPT-SOURCE MICROSCOPE-INTEGRATED OPTICAL COHERENCE TOMOGRAPHY IN VITRECTOMY FOR COMPLICATIONS OF PROLIFERATIVE DIABETIC RETINOPATHY
      Purpose: To evaluate the use of live volumetric (4D) intraoperative swept-source microscope-integrated optical coherence tomography in vitrectomy for proliferative diabetic retinopathy complications. Methods: In this prospective study, we analyzed a subgroup of patients with proliferative diabetic retinopathy complications who required vitrectomy and who were imaged by the research swept-source microscope-integrated optical coherence tomography system. In near real time, images were displayed in stereo heads-up display facilitating intraoperative surgeon feedback. Postoperative ...
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    22. 1-24 of 136 1 2 3 4 5 6 »
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