1. Articles from Marcin Stopa

    1-6 of 6
    1. Immediate effects of smoking on optic nerve and macular perfusion measured by optical coherence tomography angiography

      Immediate effects of smoking on optic nerve and macular perfusion measured by optical coherence tomography angiography

      The aim of this study was the assessment of the relationship between cigarette smoking and optic nerve and macular vessel density measured by optical coherence tomography angiography. We examined 30 eyes from 30 healthy habitual smokers. The examination was performed using a high-speed and high-resolution spectral-domain optical coherence tomography RTVue XR Avanti with AngioVue (Optovue, Fremont, CA, USA) with a split-spectrum amplitude-decorrelation angiography algorithm. Blood pressure, heart rate, vascular density in the area of the optic nerve head (4.5*4.5 mm) and vascular density with the foveal avascular zone in the central macula (3.0*3.0 mm ...

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      Mentions: Optovue
    2. Enlargement of the foveal avascular zone detected by optical coherence tomography angiography in diabetic children without diabetic retinopathy

      Enlargement of the foveal avascular zone detected by optical coherence tomography angiography in diabetic children without diabetic retinopathy

      Purpose Evaluation of foveal avascular zone (FAZ) in children with diabetes (DM) using OCTA. Methods We examined 112 diabetic children without DR aged 6–18 years and 30 age-matched controls using Topcon OCT Angiography and measured FAZ in superficial (SCP) and deep capillary plexus (DCP). The study group was divided into three subgroups depending on DM duration group 1: < 5 years ( n  = 40), group 2: 5–10 years ( n  = 42), group 3: > 10 years ( n  = 30). Results The mean DCP FAZ increased with DM duration from 502.2 μm 2 (SD 137.8) in group 1 to 523.9 μm ...

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    3. IMAGING AND MEASUREMENT OF THE PRERETINAL SPACE IN VITREOMACULAR ADHESION AND VITREOMACULAR TRACTION BY A NEW SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY ANALYSIS

      IMAGING AND MEASUREMENT OF THE PRERETINAL SPACE IN VITREOMACULAR ADHESION AND VITREOMACULAR TRACTION BY A NEW SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY ANALYSIS

      Methods: Nine patients with VMA and 13 with VMT were prospectively evaluated. Automatic inner limiting membrane line segmentation, which exploits graph search theory implementation, and posterior cortical vitreous line segmentation were performed on 141 horizontal spectral domain optical coherence tomography B-scans per patient. Vertical distances (depths) between the posterior cortical vitreous and inner limiting membrane lines were calculated for each optical coherence tomography B-scan acquired. The derived distances were merged and visualized as a color depth map that represented the preretinal space between the posterior surface of the hyaloid and the anterior surface of the retina. The early treatment d ...

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    4. A New OCT-based Method to Generate Virtual Maps of Vitreomacular Interface Pathologies

      A New OCT-based Method to Generate Virtual Maps  of Vitreomacular Interface Pathologies

      Optical coherence tomography (OCT) is the most accurate modality for noninvasive assessment of vitreoretinal interface (VRI). The scientific objective of research presented in this paper was to develop a new OCT-based method for investigation of vitreomacular interface pathologies in human eyes. We propose a new approach for the automatic generation of virtual maps representing the distance between the posterior surface of the hyaloid (PSH) and the inner limiting membrane (ILM) in the vitreomacular traction (VMT) pathology. Volumetric data was acquired from 3 adult patients with VMT. OCT B-scans were processed frame-by-frame and refined by advanced digital imaging algorithms, including application ...

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    5. Method and system of coregistrating optical coherence tomography (oct) with other clinical tests

      A method/system preserves annotations of different pathological conditions or changes that are recognized on cross-sections within a three dimensional volume of a patient's eye so that the annotations are maintained in a visible state in an en face projection produced with a SVP technique. it is thus possible to coregister the annotated conditions or changes with other types of two dimensional en face images such as images from other ophthalmic devices (e.g., angiography device, microperimetry device, autofluorescence device, fundal photography device.). The annotations are also maintained in a visible state in the coregistered image.
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    6. Correlation Of Pathologic Features In Spectral Domain Optical Coherence Tomography With Conventional Retinal Studies.

      We delineated pathologic features within three-dimensional spectral domain optical coherence tomography volumes and projected marked sites of pathologic features onto clinically useful two-dimensional localization maps to be overlaid on conventional clinical images.Page: 298DOI: 10.1097/IAE.0b013e3181567798Authors: STOPA, MARCIN MD *+; BOWER, BRADLEY A. BSE +++; DAVIES, Emily BS *; IZATT, JOSEPH A. PhD *++; TOTH, CYNTHIA A. MD *++
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    1-6 of 6
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  2. Topics in the News

    1. (2 articles) Duke University
    2. (2 articles) Cynthia A. Toth
    3. (2 articles) Bradley A. Bower
    4. (1 articles) Joseph A. Izatt
    5. (1 articles) Optovue
    6. (1 articles) Optopol Technology
    7. (1 articles) Topcon Medical Systems
    8. (1 articles) Optopol SOCT Copernicus
    9. (1 articles) Medical University of Vienna
    10. (1 articles) Harvard University
    11. (1 articles) NYU Langone Medical Center
    12. (1 articles) Massachusetts General Hospital
    13. (1 articles) Tianjin University
    14. (1 articles) University of Hong Kong
    15. (1 articles) Semmelweis University
    16. (1 articles) Guillermo J. Tearney
    17. (1 articles) Arnaud Dubois
    18. (1 articles) Ursula Schmidt-Erfurth
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    A New OCT-based Method to Generate Virtual Maps  of Vitreomacular Interface Pathologies IMAGING AND MEASUREMENT OF THE PRERETINAL SPACE IN VITREOMACULAR ADHESION AND VITREOMACULAR TRACTION BY A NEW SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY ANALYSIS Enlargement of the foveal avascular zone detected by optical coherence tomography angiography in diabetic children without diabetic retinopathy Immediate effects of smoking on optic nerve and macular perfusion measured by optical coherence tomography angiography Selective retinex enhancement based on the clustering algorithm and block-matching 3D for optical coherence tomography images Artificial intelligence, the internet of things, and virtual clinics: ophthalmology at the digital translation forefront Detecting glaucoma based on spectral domain optical coherence tomography imaging of peripapillary retinal nerve fiber layer: a comparison study between hand-crafted features and deep learning model Comparison of line‐field confocal optical coherence tomography images with histological sections: Validation of a new method for in vivo and non‐invasive quantification of superficial dermis thickness Estimating Visual Field Mean Deviation using Optical Coherence Tomographic Nerve Fiber Layer Measurements in Glaucoma Patients Optical coherence tomography of retinal and choroidal layers in patients with familial hypercholesterolaemia treated with lipoprotein apheresis SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY, FLUORESCEIN ANGIOGRAPHY, AND INDOCYANINE GREEN ANGIOGRAPHY COMPARISONS REVISITED Retinal microvasculature in pituitary adenoma patients: is optical coherence tomography angiography useful?