1. K. Bailey Freund

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    1. Mentioned In 90 Articles

    2. Volume Rendering of Dense B-Scan Optical Coherence Tomography Angiography to Evaluate the Connectivity of Macular Blood Flow

      Volume Rendering of Dense B-Scan Optical Coherence Tomography Angiography to Evaluate the Connectivity of Macular Blood Flow
      Purpose : To characterize macular blood flow connectivity using volume rendering of dense B-scan (DB) optical coherence tomography angiography (OCTA) data. Methods : This was a prospective, cross-sectional, observational study. DB OCTA perifoveal scans were performed on healthy subjects using the Spectralis HRA+OCT2. A volumetric projection artifact removal algorithm and customized filters were applied to raw OCTA voxel data. Volume rendering was performed using a workflow on Imaris 9.5 software ...
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    3. Optical coherence tomography characteristics of taxane-induced macular edema and other multimodal imaging findings

      Optical coherence tomography characteristics of taxane-induced macular edema and other multimodal imaging findings
      Purpose To identify common optical coherence tomography (OCT) characteristics of taxane-related CME (T-CME) to differentiate it from CME associated with other causes (O-CME) and to present multimodal imaging findings of T-CME. Methods To differentiate T-CME from O-CME, pooled SD-OCT images from 14 previous publications and images obtained from our multicenter case series of 3 patients with multimodal imaging of T-CME were compared with 16 consecutive cases of O-CME. Images were ...
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    4. Linear and planar reflection artifacts on swept-source and spectral-domain optical coherence tomography due to hyperreflective crystalline deposits

      Linear and planar reflection artifacts on swept-source and spectral-domain optical coherence tomography due to hyperreflective crystalline deposits
      Purpose To describe novel spectral-domain (SD) and swept-source (SS) optical coherence tomography (OCT) linear and planar reflection artifacts produced by hyperreflective crystalline deposits (HCD). Methods Imaging from 10 eyes with HCD producing linear and planar artifacts on OCT was retrospectively analyzed. All eyes had SD-OCT (Spectralis HRA+OCT, Heidelberg Engineering, Germany) and SS-OCT angiography (PLEX Elite 9000, Carl Zeiss Meditec, Inc., Dublin, CA) acquired on the same day. The horizontal ...
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    5. Macroaneurysms Associated With Congenital Retinal Macrovessels

      Macroaneurysms Associated With Congenital Retinal Macrovessels
      Purpose: Congenital retinal macrovessels are large aberrant retinal blood vessels that cross the horizontal raphe and can traverse the central macula. Using multimodal imaging and optical coherence tomography angiography, we describe 2 cases of congenital retinal macrovessel associated with macroaneurysms. Methods: Two patients presented for evaluation and were found to have congenital retinal macrovessels associated with macroaneurysms. Color photography, optical coherence tomography, fundus autofluorescence fluorescein angiography, and optical coherence tomography ...
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    6. Optical Coherence Tomography Angiography in a Patient With Diabetes and Preretinal Neovascularization

      Optical Coherence Tomography Angiography in a Patient With Diabetes and Preretinal Neovascularization
      A 39-year-old patient with type 2 diabetes (diagnosed in 1996) presented for an evaluation of bilateral proliferative diabetic retinopathy that had been treated previously with panretinal photocoagulation. His visual acuity was 20/25 OD. Examination by ophthalmoscopy showed scattered dot-blot intraretinal hemorrhages and an inferotemporal preretinal neovascular frond ( Figure , A). Optical coherence tomography angiography was also performed ( Figure , B).
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    7. Analysis of Hyperreflective Dots Within the Central Fovea in Healthy Eyes Using En Face Optical Coherence Tomography

      Analysis of Hyperreflective Dots Within the Central Fovea in Healthy Eyes Using En Face Optical Coherence Tomography
      Purpose : The purpose of this retrospective study was to describe and quantify superficial hyperreflective dots within the central fovea and correlate them with age, using en face and cross-sectional B-scan optical coherence tomography (OCT). Methods : Healthy eyes, evaluated with a spectral domain instrument (primary cohort) at the Stein Eye Institute (UCLA) and with a swept source instrument (secondary cohort) at the Vitreous Retina Macula Consultants of New York, were included ...
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    8. Optical coherence tomography en face analysis of the posterior vitreous reveal topographic relationships between premacular bursa, prevascular fissures and cisterns

      Optical coherence tomography en face analysis of the posterior vitreous reveal topographic relationships between premacular bursa, prevascular fissures and cisterns
      Purpose To characterize the topographic relationships among vitreous structures including the premacular bursa, prevascular vitreous fissures, cisterns and lacunae in healthy subjects using en face and cross-sectional swept-source optical coherence tomography (SS-OCT). Design Prospective comparative study. Subjects Sixty eyes of 60 healthy subjects (age range = 4 35 years). Eyes of individuals younger than 20 years (n= 29) were compared with eyes of individuals aged 20 years or older (n=31 ...
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    9. Volumetric Analysis of Vascularized Serous Pigment Epithelial Detachment Progression in Neovascular Age-Related Macular Degeneration Using Optical Coherence Tomography Angiography

      Volumetric Analysis of Vascularized Serous Pigment Epithelial Detachment Progression in Neovascular Age-Related Macular Degeneration Using Optical Coherence Tomography Angiography
      Purpose : To analyze the evolution of type 1 neovascularization associated with vascularized serous pigment epithelial detachment (vsPED) using three-dimensional, volumetric, en face optical coherence tomography angiography (OCTA). Methods : This was a retrospective case series from four tertiary medical centers. OCTA images were analyzed at baseline and at the 3-, 6-, 12-, 18-, and 24-month follow-up visit when available. Visual acuity, number of injections, PED maximal height and PED area and ...
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    10. EVALUATION OF SEGMENTAL RETINAL ARTERITIS WITH OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      EVALUATION OF SEGMENTAL RETINAL ARTERITIS WITH OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY
      Purpose: To describe the vascular anatomy and intraluminal flow characteristics of segmental retinal arteritis (SRA) using structural and angiographic optical coherence tomography (OCT). Methods: Retrospective case series of consecutive patients presenting with SRA. All patients were evaluated at presentation with fundus photography, spectral domain OCT, and OCT angiography. One patient was imaged with dense B-scan OCT angiography. Results: Three eyes of three male patients were evaluated. All examinations were consistent ...
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    11. Differentiating veins from arteries on optical coherence tomography angiography by identifying deep capillary plexus vortices

      Differentiating veins from arteries on optical coherence tomography angiography by identifying deep capillary plexus vortices
      Purpose To introduce a simple method for differentiating retinal veins from arteries on optical coherence tomography angiography (OCTA). Design Cross-sectional pilot study. Methods Four default en face slabs including color depth encoded, greyscale full-thickness retina, superficial plexus, and deep capillary plexus (DCP) from 9 3x3 mm and 9 6x6 mm OCTA scans were exported and aligned. Nine ophthalmologists with minimum OCTA experience from 2 eye institutions were instructed to classify ...
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    12. Filigree vascular pattern in Combined Hamartoma of Retina and Retinal Pigment Epithelium on Optical Coherence Tomography Angiography

      Filigree vascular pattern in Combined Hamartoma of Retina and Retinal Pigment Epithelium on Optical Coherence Tomography Angiography
      Objective To evaluate the vascular structure within combined hamartoma of retina and retinal pigment epithelium (CHRRPE) lesions using optical coherence tomography angiography (OCT-A). Design: Multicentre retrospective observational analysis Subjects: 20 eyes of patients diagnosed with CHRRPE Methods Retrospective analysis of color fundus photographs, optical coherence tomography (OCT) and OCT-A of 20 eyes with CHRRPE. Morphological characteristics of CHRRPE and the OCT features were correlated with the density of the filigree ...
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    13. 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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    14. Swept-Source Optical Coherence Tomography Angiography of Retinal Arterial Macroaneurysm With Overlying Hemorrhage

      Swept-Source Optical Coherence Tomography Angiography of Retinal Arterial Macroaneurysm With Overlying Hemorrhage
      A patient in their 90s with hypertension and diabetes type 2 noted the sudden onset of decreased visual acuity of 20/70 OS due to a subinternal limiting membrane macular hemorrhage. Blood obscured the view posteriorly, evidenced by blocked fluorescence exceeding 5 minutes on fluorescein angiography ( Figure , A). Swept-source optical coherence tomography angiography (SS-OCTA) demonstrated a retinal arterial macroaneurysm ( Figure , B). The SS-OCTA uses scatter from high-speed acquisition (100 000 ...
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    15. Optical Coherence Tomography Angiography of Retinal-Choroidal Anastomosis in Toxoplasmosis Chorioretinitis

      Optical Coherence Tomography Angiography of Retinal-Choroidal Anastomosis in Toxoplasmosis Chorioretinitis
      A young adult was examined for follow-up of toxoplasmosis chorioretinitis that was diagnosed and treated during early childhood. Two subsequent flare-ups were treated with atovaquone, combined trimethoprim and sulfamethoxazole, and oral prednisone. Visual acuity was 20/20 OD. Ophthalmoscopic examination results demonstrated an inactive temporal chorioretinal scar with an apparent retinal-choroidal anastomosis ( Figure ). Optical coherence tomography angiography was performed through the anastomosis. Enface images ( Figure ) of the retinal and choroidal ...
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  2. About K. Bailey Freund

    K. Bailey Freund

    K. Bailey Freund is a Physician at Vitreous Retina Macula Consultants of New York.