1. University of Pennsylvania

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    1. Mentioned In 109 Articles

    2. Flexible method for generating needle-shaped beams and its application in optical coherence tomography

      Explore Optica Publishing Group Developmental Biology , Probes
      Flexible method for generating needle-shaped beams and its application in optical coherence tomography
      Needle-shaped beams (NBs) featuring a long depth-of-focus (DOF) can drastically improve the resolution of microscopy systems. However, thus far, the implementation of a specific NB has been onerous due to the lack of a common, flexible generation method. Here we develop a spatially multiplexed phase pattern that creates many axially closely spaced foci as a universal platform for customizing various NBs, allowing flexible manipulations of beam length and diameter, uniform ...
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      Mentions: Stanford University University of Pennsylvania

    3. Quantitative and qualitative characterization of retinal dystrophies in canine models of inherited retinal diseases using spectral domain optical coherence tomography (SD-OCT)

      Explore ScienceDirect Ophthalmology
      Quantitative and qualitative characterization of retinal dystrophies in canine models of inherited retinal diseases using spectral domain optical coherence tomography (SD-OCT)
      The purpose of this study was to establish spectral domain optical coherence tomography (SD-OCT) assessment data in well-established canine models of inherited retinal dystrophies: PDE6B-rod-cone dysplasia 1 (RCD1: early onset retinitis pigmentosa), PRCD-progressive rod-cone degeneration (PRCD: late onset retinitis pigmentosa), CNGB3-achromatopsia, and RPE65-Leber congenital amaurosis (LCA). High resolution SD-OCT images of the retina were acquired from both eyes in 5 planes: temporal; superotemporal; superior; nasal; and inferior in adult dogs ...
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      Mentions: University of Pennsylvania Purdue University Michigan State University

    4. Novel insights into chorioretinal and juxtapapillary colobomas by optical coherence tomography

      Explore Wiley Online Library Ophthalmology
      Novel insights into chorioretinal and juxtapapillary colobomas by optical coherence tomography
      Purpose: The purpose was to describe the in vivo microanatomy of typical and atypical chorioretinal and juxtapapillary colobomas in the dog. Methods: Three cross-breed dogs were found to be affected with colobomas. Two of the cases were NEHJ1 homozygous and Collie Eye Anomaly (CEA) affected and had the typical optic nerve head colobomas seen with the disease. The third case had an unexpected atypical coloboma. In vivo retinal photography and ...
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      Mentions: University of Pennsylvania

    5. Elevated Intracranial Pressure in Patients with Craniosynostosis by Optical Coherence Tomography

      Explore LWW Online Neurology , Ophthalmology
      Elevated Intracranial Pressure in Patients with Craniosynostosis by Optical Coherence Tomography
      Background: Craniosynostosis may lead to elevated intracranial pressure, which may be implicated with impaired neurocognitive development. However, accurately measuring intracranial pressure is challenging, and patterns in craniosynostosis patients are poorly characterized. Spectral-domain optical coherence tomography may enable noninvasive assessment of intracranial pressure in pediatric patients with craniosynostosis. Methods: Pediatric patients with craniosynostosis undergoing surgical intervention between 2014 and 2019 prospectively underwent optical coherence tomographic evaluation. Intracranial pressure was directly measured ...
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      Mentions: University of Pennsylvania

    6. Characterization of the Canine Retinal Vasculature With Optical Coherence Tomography Angiography: Comparisons With Histology and Fluorescein Angiography

      Explore Frontiers Ophthalmology
      Characterization of the Canine Retinal Vasculature With Optical Coherence Tomography Angiography: Comparisons With Histology and Fluorescein Angiography
      Purpose: To present a methodology for quantification of the canine retinal vasculature imaged by optical coherence tomography angiography (OCTA) and validate this approach by comparison with fluorescein angiography (FA) and confocal imaging of retinal wholemounts labelled by immunohistochemistry (IHC). Methods: Six normal adult dogs underwent retinal OCTA imaging in both eyes. The images extracted from the different microvascular plexuses at eight retinal locations spanning the central and mid-peripheral fundus were ...
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      Mentions: University of Pennsylvania

    8. Retina tissue validation of optical coherence tomography determined outer nuclear layer loss in FTLD-tau

      Explore Acta Neuropathologica Communications Ophthalmology
      Retina tissue validation of optical coherence tomography determined outer nuclear layer loss in FTLD-tau
      Alzheimer's disease (AD) is associated with inner retina (nerve fiber and ganglion cell layers) thinning. In contrast, we have seen outer retina thinning driven by photoreceptor outer nuclear layer (ONL) thinning with antemortem optical coherence tomography (OCT) among patients considered to have a frontotemporal degeneration tauopathy (FTLD-Tau). Our objective was to determine if postmortem retinal tissue from FTLD-Tau patients demonstrates ONL loss observed antemortem on OCT. Two probable FTLD-Tau ...
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      Mentions: University of Pennsylvania

    10. Retinal Microanatomy in Retinopathy of Prematurity

      Explore Home - ClinicalTrials.gov Ophthalmology , Clinical Trials
      Retinal Microanatomy in Retinopathy of Prematurity
      Retinopathy of prematurity (ROP) is a disorder of development of the neural retina and its vasculature that can impact vision in vulnerable preterm neonates for a lifetime. This study tests high-speed optical coherence tomography (OCT) technology compared to conventional color photographs at the bedside of very preterm infants in the intensive care nursery, to characterize previously unseen abnormalities that can predict a need for referral for ROP treatment, or poor ...
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      Mentions: Duke University University of Pennsylvania

    11. Evaluation of the Cirrus HD-OCT Normative Database Probability Codes in an African American Population

      Explore ScienceDirect Ophthalmology
      Evaluation of the Cirrus HD-OCT Normative Database Probability Codes in an African American Population
      Objective: Race-adjusted interpretation of data from Cirrus high-definition optical coherence tomography (HD-OCT) devices is not standard practice. The aim of this study is to evaluate differences in peripapillary retinal nerve fiber layer (RNFL) thickness between healthy African Americans and the Cirrus HD-OCT normative database. Design: This is a cross-sectional observational study using control patients recruited from the greater Philadelphia, Pennsylvania area. Subjects: A total of 466 eyes were included in ...
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      Mentions: University of Pennsylvania

    12. Post-doctoral Associate Positions in Biophotonics at Washington University in St. Louis

      Explore Optical Coherence Tomography News Jobs & Studentships
      Post-doctoral Associate Positions in Biophotonics at Washington University in St. Louis
      ...">Dr. Chao Zhou obtained his B.S. degree in 2001 from Peking University and his Ph.D. degree in 2007 from the University of Pennsylvania under the guidance of Prof. Arjun G. Yodh.  After graduation, he joined Profes...
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      Mentions: Massachusetts Institute of Technology National Institutes of Health Lehigh University

    14. Utility of Ultrasound and Optical Coherence Tomography in Differentiating Between Papilledema and Pseudopapilledema in Children

      Explore LWW Online Ophthalmology
      Utility of Ultrasound and Optical Coherence Tomography in Differentiating Between Papilledema and Pseudopapilledema in Children
      Background: Differentiating between papilledema and pseudopapilledema in children presenting with mild-to-moderate optic nerve head elevation is challenging. This study sought to determine which B-scan ultrasonography (BSUS) and optical coherence tomography (OCT) features, individually or in combination, are best able to differentiate between papilledema and pseudopapilledema in children. Methods: Children presenting with optic nerve head elevation of unknown etiology were eligible if they underwent BSUS and OCT performed by the same ...
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      Mentions: University of Pennsylvania

    15. Preterm Infant Stress During Handheld Optical Coherence Tomography vs Binocular Indirect Ophthalmoscopy Examination for Retinopathy of Prematurity

      Explore The JAMA Network Ophthalmology
      Preterm Infant Stress During Handheld Optical Coherence Tomography vs Binocular Indirect Ophthalmoscopy Examination for Retinopathy of Prematurity
      Importance: Binocular indirect ophthalmoscopy (BIO) examination for retinopathy of prematurity (ROP) is a well-known cause of repeated preterm infant stress. Objective: To compare stress during investigational optical coherence tomography (OCT) imaging to that during BIO for ROP. Design, setting, and participants: This cross-sectional study examined infants at the bedside in the intensive care nursery. Consecutive preterm infants enrolled in Study of Eye Imaging in Preterm Infants (BabySTEPS) who had any ...
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      Mentions: Duke University University of Pennsylvania

    16. Evaluating the association of clinical factors and optical coherence tomography retinal imaging with axial length and axial length growth among preterm infants

      Explore Home - Springer Ophthalmology
      Evaluating the association of clinical factors and optical coherence tomography retinal imaging with axial length and axial length growth among preterm infants
      Purpose To study the association of clinical factors and optical coherence tomography (OCT) retinal imaging with axial length (AL) and AL growth in preterm infants Methods Among a subgroup of infants from the prospective BabySTEPS study who were screened for retinopathy of prematurity (ROP) and had both AL measured and OCT imaging performed, we analyzed data collected prior to 42 weeks postmenstrual age (PMA) and prior to ROP treatment. Using ...
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      Mentions: Duke University University of Pennsylvania
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  4. About University of Pennsylvania

    University of Pennsylvania

    University of Pennsylvania (commonly referred to as Penn or UPenn), one of the eight members of the Ivy League, is a private research university located in Philadelphia, Pennsylvania, United States. Penn is the fourth-oldest institution of higher education in the United States, and is considered the first university in the United States, with both undergraduate and graduate studies. Penn is also one of the Colonial Colleges.

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