1. University of Iowa

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    1. Mentioned In 132 Articles

    2. Iowa City Medical Center Receives NIH Grant for Automated Assessment of Optic Nerve Edema with Low-Cost Imaging.

      Iowa City Medical Center Receives NIH Grant for Automated Assessment of Optic Nerve Edema with Low-Cost Imaging.
      Iowa City Medical Center Receives a 2019 NIH Grant for Automated Assessment of Optic Nerve Edema with Low-Cost Imaging. The principal investigator is Mona Garvin. The program began in 2016 and ends in 2020. Below is a summary of the proposed work. Papilledema - a specific type of optic nerve edema associated with elevated intracranial pressure - occurs in veterans due to intracranial masses or hemorrhage, obstructive hydrocephalus, following traumatic brain injury ...
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    3. Subretinal pseudocyst: A novel optical coherence tomography finding in age-related macular degeneration

      Subretinal pseudocyst: A novel optical coherence tomography finding in age-related macular degeneration
      Purpose: To report the presence of a new structural optical coherence tomography finding, namely, subretinal pseudocysts, in a patient affected by age-related macular degeneration. Methods: Case report including multimodal imaging discussion. Case Report: We report a case of a 77-year-old woman affected by age-related macular degeneration from 7years. Best corrected visual acuity was counting fingers and 20/40 in the right and left eye, respectively. The left eye was affected ...
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    4. Effect of Heart Rate on Early Progression of Cardiac Allograft Vasculopathy: A Prospective Study Using Highly Automated 3-D Optical Coherence Tomography Analysis

      Effect of Heart Rate on Early Progression of Cardiac Allograft Vasculopathy: A Prospective Study Using Highly Automated 3-D Optical Coherence Tomography Analysis
      Purpose Despite the controversial effect of elevated heart rate on progression of cardiac allograft vasculopathy (CAV), heart-rate-slowing agents are frequently prescribed with the assumption that higher heart rate predicts worse outcomes in cardiovascular disease. Methods This prospective 2-center trial investigated progression of CAV in 116 heart transplant (HTx) patients. Both baseline (1 month after HTx) and follow-up (12 months after HTx) examinations by coronary optical coherence tomography (OCT) were analyzed ...
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    5. Nondestructive Measurement of Conformal Coating Thickness on Printed Circuit Board with Ultra-high Resolution Optical Coherence Tomography

      Nondestructive Measurement of Conformal Coating Thickness on Printed Circuit Board with Ultra-high Resolution Optical Coherence Tomography
      Conformal coating (CC) is widely used to protect printed circuit board (PCB) from corrosion, mould growth and electrical failures. To ensure an effective protection, the thickness of the conformal coating layer needs to be well controlled. However, to date, the coating thickness is usually measured in a destructive way under microscopes. In this study, we proposed to use optical coherence tomography (OCT) to measure the CC thickness nondestructively. Specifically, to ...
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    6. Correlation of Optical Coherence Tomography and Retinal Histology in Normal and Pro23His Retinal Degeneration Pig

      Correlation of Optical Coherence Tomography and Retinal Histology in Normal and Pro23His Retinal Degeneration Pig
      Purpose : We correlate optical coherence tomography (OCT) retinal layer thickness measurements with histology in wild-type and retinal degenerative pigs. Methods : OCT scans were obtained using the Bioptigen Envisu R2200. In normal pigs, three eyes were imaged in vivo, and three eyes were imaged after enucleation. In the Pro23His retinal degeneration pigs (P23H), one eye was imaged in vivo and four eyes were imaged after enucleation. All eyes were fixed in ...
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    7. Wide-field swept-source optical coherence tomography and angiography in X-linked retinoschisis

      Wide-field swept-source optical coherence tomography and angiography in X-linked retinoschisis
      Objective Retinal vascular and structural changes, particularly outside of the central macula, are not well characterized in X-linked retinoschisis (XLRS). We aim to describe wide-field swept-source optical coherence tomography (SS-OCT) and angiography (SS-OCTA) findings in XLRS. Design Retrospective, cross-sectional study at a tertiary referral center Participants Nine consecutive male patients with molecularly-confirmed XLRS Methods All patients underwent complete ophthalmic examination with multimodal imaging, including SS-OCT with SS-OCTA (PLEX Elite 9000 ...
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    8. Validation of the UNC OCT Index for the Diagnosis of Early Glaucoma

      Validation of the UNC OCT Index for the Diagnosis of Early Glaucoma
      Purpose : To independently validate the performance of the University of North Carolina Optical Coherence Tomography (UNC OCT) Index in diagnosing and predicting early glaucoma. Methods : Data of 118 normal subjects (118 eyes) and 96 subjects (96 eyes) with early glaucoma defined as visual field mean deviation (MD) greater than 4 decibels (dB), aged 40 to 80 years, and who were enrolled in the Full-Threshold Testing Size III, V, VI comparison ...
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    9. Multimodal Retinal Imaging in Incontinentia Pigmenti Including Optical Coherence Tomography Angiography

      Multimodal Retinal Imaging in Incontinentia Pigmenti Including Optical Coherence Tomography Angiography
      Importance Incontinentia pigmenti (IP) is a rare, X-linked dominant disease with potentially severe ocular complications that predominantly affect the peripheral retina. However, little is known about its effects on the macula. Objective To describe the structural and vascular abnormalities observed in the maculas of patients with IP and to correlate these findings with peripheral pathologies. Design, Setting, and Participants Prospective, cross-sectional study at Wilmer Eye Institute, Johns Hopkins University. Five ...
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    10. Correlation of Ultra-Widefield Fluorescein Angiography and OCT Angiography in Sickle Cell Retinopathy

      Correlation of Ultra-Widefield Fluorescein Angiography and OCT Angiography in Sickle Cell Retinopathy
      Purpose To determine whether the degree of peripheral nonperfusion seen on ultra-widefield (UWF) fluorescein angiography (FA) correlates with measures of macular vascular flow as seen on OCT angiography (OCTA) in sickle cell retinopathy. Design Prospective, observational study. Participants Patients with sickle cell disease undergoing an eye examination at an urban, tertiary medical center. Methods All patients underwent dilated fundus examination as well as UWF FA and macular OCTA imaging on ...
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    11. Multi-layer 3D Simultaneous Retinal OCT Layer Segmentation: Just-Enough Interaction for Routine Clinical Use

      Multi-layer 3D Simultaneous Retinal OCT Layer Segmentation: Just-Enough Interaction for Routine Clinical Use
      All current fully automated retinal layer segmentation methods fail in some subset of clinical 3D Optical Coherence Tomography (OCT) datasets, especially in the presence of appearance-modifying retinal diseases like Age-related Macular Degeneration (AMD), Diabetic Macular Edema (DME), and others. In the presence of local or regional failures, the only current remedy is to edit the obtained segmentation in a slice-by-slice manner. This is a very tedious and time-demanding process, which ...
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    12. Iowa City VA Receives NIH Grant for Automated Assessment of Optical Nerve Edema with Low-Cost Imaging

      Iowa City VA  Receives NIH Grant for Automated Assessment of Optical Nerve Edema with Low-Cost Imaging
      Iowa City VA Medical Center Receives a 2017 NIH Grant for Automated Assessment of Optical Nerve Edema with Low-Cost Imaging. The principal investigator is Mona Garvin. The program began in 2016 and ends in 2020. Below is a summary of the proposed work. Papilledema - a specific type of optic nerve edema associated with elevated intracranial pressure - occurs in veterans due to intracranial masses or hemorrhage, obstructive hydrocephalus, following traumatic brain ...
      Read Full Article
    13. Optical Coherence Tomography Analysis Based Prediction of Humphrey 24-2 Visual Field Thresholds in Patients With Glaucoma

      Optical Coherence Tomography Analysis Based Prediction of Humphrey 24-2 Visual Field Thresholds in Patients With Glaucoma
      Purpose : A pilot study showed that prediction of individual Humphrey 24-2 visual field (HVF 24-2) sensitivity thresholds from optical coherence tomography (OCT) image analysis is possible. We evaluate performance of an improved approach as well as 3 other predictive algorithms on a new, fully independent set of glaucoma subjects. Methods : Subjects underwent HVF 24-2 and 9-field OCT (Heidelberg Spectralis) testing. Nerve fiber (NFL), and ganglion cell and inner plexiform (GCL ...
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    14. A Machine-Learning Graph-Based Approach for 3D Segmentation of Bruch’s Membrane Opening from Glaucomatous SD-OCT Volumes

      A Machine-Learning Graph-Based Approach for 3D Segmentation of Bruch’s Membrane Opening from Glaucomatous SD-OCT Volumes
      Bruchs membrane opening-minimum rim width (BMO-MRW) is a recently proposed structural parameter which estimates the remaining nerve fiber bundles in the retina and is superior to other conventional structural parameters for diagnosing glaucoma. Measuring this structural parameter requires identification of BMO locations within spectral domain-optical coherence tomography (SD-OCT) volumes. While most automated approaches for segmentation of the BMO either segment the 2D projection of BMO points or identify BMO points ...
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  2. About University of Iowa

    University of Iowa

    University of Iowa, also commonly called Iowa or UI, is a major research university located on a 1700 acres campus in Iowa City, Iowa, US, on the banks of the Iowa River. The university is organized into eleven colleges granting undergraduate, graduate, and professional degrees. The University is a member of the Big Ten Conference, the Committee on Institutional Cooperation, and is considered a "Public Ivy."