1. Articles from Prithvi Ramtohul

    1-8 of 8
    1. Volume Rendering of Deep Retinal Age-Related Microvascular Anomalies

      Volume Rendering of Deep Retinal Age-Related Microvascular Anomalies

      Purpose To characterize and distinguish non-neovascular deep retinal age-related microvascular anomalies (DRAMA) from type 3 macular neovascularization (MNV) using volume rendering of optical coherence tomography (OCT) and OCT angiography (OCTA). Design Retrospective, consecutive case series. Subjects Consecutive patients with age-related macular degeneration (AMD) exhibiting de novo non-neovascular abnormalities within the deep vascular plexus (DCP) on high-resolution (High-Res) spectral domain and swept-source OCT/OCTA. Patients with retinal vascular alterations attributable to other disease entities were excluded. Methods Complete ophthalmologic examination and multimodal imaging including confocal fundus photography (CFP), spectral domain OCT (SD-OCT), High-Res SD-OCT and OCTA, and volume-averaged swept-source OCTA (SS-OCTA ...

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    2. Retinal astrocytic hamartoma vascular network on swept-source optical coherence tomography angiography

      Retinal astrocytic hamartoma vascular network on swept-source optical coherence tomography angiography

      A 28-year-old male was referred for evaluation of a retinal lesion in his right eye. Visual acuity was 20/20 in both eyes, and his past medical history was unremarkable. Ophthalmoscopy showed an epipapillary retinal lesion with a translucent appearance and mild traction on the tumour surface, consistent with type II retinal astrocytic hamartoma. A vessel emerging from the lesion and draining into a major retinal vein was visible ( A , arrowhead). Whole-signal-mode en face swept-source optical coherence tomography angiography revealed a dense intralesional honeycomb-like vascular network directly connected to the inferotemporal vein ( B , arrowhead). Cross-sectional swept-source optical coherence tomography angiography ...

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    3. MULTIMODAL IMAGING AND HISTOLOGIC EVIDENCE OF A NOVEL OPTICAL COHERENCE TOMOGRAPHY TERMINOLOGY

      MULTIMODAL IMAGING AND HISTOLOGIC EVIDENCE OF A NOVEL OPTICAL COHERENCE TOMOGRAPHY TERMINOLOGY

      Purpose: To clarify the histologic basis of bacillary layer detachment (BALAD) through a review of current literature and an analysis of retinal imaging. Methods: We reviewed the literature for previous reports of BALAD. An analysis of retinal images was performed to support anatomic conclusions. Results: A total of 164 unique patients with BALAD on optical coherence tomography (OCT) were identified from the published literature. Twenty-two underlying etiologies, all associated with subretinal exudation, were identified. Forty-one different OCT terminologies were found. The defining OCT feature of BALAD was a split at the level of the photoreceptor inner segment myoid creating a ...

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    4. MULTIMODAL IMAGING CORRELATION OF THE CONCENTRIC MACULAR RINGS SIGN IN FOVEAL HYPOPLASIA

      MULTIMODAL IMAGING CORRELATION OF THE CONCENTRIC MACULAR RINGS SIGN IN FOVEAL HYPOPLASIA

      Purpose To expand the multimodal imaging correlation of the concentric macular rings sign seen on ultra-widefield fundus photography in patients with foveal hypoplasia. Design Retrospective case series. Participants Thirty-two patients with foveal hypoplasia presented with the concentric macular rings sign on ultra-widefield fundus photography. Methods Inclusion criterion was the presence of a concentric macular rings sign detected on ultra-widefield fundus photography. Main Outcome Measures Non-invasive multimodal retinal imaging including ultra-widefield fundus photography, structural optical coherence tomography, near-infrared reflectance, and blue fundus autofluorescence were investigated. Horizontal dense B-scans and en face optical coherence tomography images were acquired. Results Evaluation of all ...

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    5. Optical Coherence Tomography Angiography Recovery Pattern of Acute Macular Neuroretinopathy

      Optical Coherence Tomography Angiography Recovery Pattern of Acute Macular Neuroretinopathy

      A 73-year-old man had acute vision loss in his right eye, following pacemaker dysfunction during the early postimplantation period. He had second-degree atrioventricular block. Best-corrected visual acuity was 20/63 OD. Anterior segment examination was unremarkable. Humphrey visual field 10-2 testing revealed a paracentral scotoma of the right eye. Fundus photography revealed a brown-reddish foveal reflex ( Figure 1 A). Near-infrared imaging showed a parafoveal multilobular hyporeflective area ( Figure 1 B). Spectral-domain optical coherence tomography (SD-OCT) (Spectralis HRA and SD-OCT; Heidelberg Engineering GmbH) demonstrated hyperreflectivity of the outer plexiform layer and Henle fiber layer associated with subretinal fluid, consistent with acute ...

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    1-8 of 8
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  2. Topics in the News

    1. (2 articles) NYU Grossman School of Medicine
    2. (2 articles) University of Alabama
    3. (1 articles) Heidelberg Engineering
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    5. (1 articles) Optos
    6. (1 articles) Northwestern University
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    Optical Coherence Tomography Angiography Recovery Pattern of Acute Macular Neuroretinopathy MULTIMODAL IMAGING CORRELATION OF THE CONCENTRIC MACULAR RINGS SIGN IN FOVEAL HYPOPLASIA Retinal Pigment Epithelium Activation in Angioid Streaks Imaged With En Face Optical Coherence Tomography MULTIMODAL IMAGING AND HISTOLOGIC EVIDENCE OF A NOVEL OPTICAL COHERENCE TOMOGRAPHY TERMINOLOGY Retinal astrocytic hamartoma vascular network on swept-source optical coherence tomography angiography Volume Rendering of Deep Retinal Age-Related Microvascular Anomalies High-Resolution Spectral Domain Optical Coherence Tomography of Congenital Grouped Albinotic Spots Influence of scan direction on subfoveal choroidal vascularity index using optical coherence tomography Subthreshold Nanosecond Laser for Non-resolving Central Serous Chorioretinopathy: A Double-masked Sham-controlled Randomised Trial Optical Coherence Tomography Angiography (OCTA) to Assess Cardiac Output and Cerebral Perfusion at the Time of Children's Cardiac Surgery Recent advances in optical coherence tomography for anterior segment imaging in small animals and their clinical implications Intraoperative optical coherence tomography-guided donor corneal tissue assessment and preparation