1. Articles from f. coscas

    1-4 of 4
    1. Optical Coherence Tomography Angiography in Healthy Subjects and Diabetic Patients

      Optical Coherence Tomography Angiography in Healthy Subjects and Diabetic Patients

      Fluorescein angiography and indocyanine green angiography provide information about the normal retinal and choroidal vascular perfusion. They allow the evaluation of different diseases and increase the capability to define and diagnose several pathological conditions. Fluorescein angio graphy is the “gold standard” in imaging the retinal vascular bed and its changes, although not all the different layers of the capillary network can be visualized in a bidimensional examination. Optical coherence tomography angiography allows a depth-resolved visualization of the retinal and choroidal microvasculature, by calculating the difference (decorrelation) between static and nonstatic tissue. Given that the main moving elements in the eye ...

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    2. Retinal Microvasculature in Nonproliferative Diabetic Retinopathy: Automated Quantitative Optical Coherence Tomography Angiography Assessment

      Retinal Microvasculature in Nonproliferative Diabetic Retinopathy: Automated Quantitative Optical Coherence Tomography Angiography Assessment

      Purpose: To perform a qualitative and quantitative assessment of the foveal microvasculature in eyes with diabetic maculopathy using optical coherence tomography angiography (OCT-A). Methods: Retrospective case series of 48 eyes with diabetic maculopathy and 47 healthy eyes evaluated by Spectralis OCT-A. Perifoveal arcade disruptions, linear vascular dilations, microaneurysms, intraretinal microvascular abnormalities and flow-void areas were qualitatively analyzed on OCT angiograms both for the superficial (SCP) and deep (DCP) capillary plexuses. A fully automated microstructural analysis of the foveal avascular zone (FAZ) metrics, vascular and avascular surfaces was performed. Quantitative values from diabetic patients were compared with those of healthy subjects ...

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    3. Optical Coherence Tomography Angiography in Macular Edema (Book Chapter)

      Optical Coherence Tomography Angiography in Macular Edema (Book Chapter)

      OCT angiography is a promising new method to visualize the retinal vasculature and choroidal vascular layers in the macular area and provides depth resolved functional information of the blood flow in the vessels. Given that the main moving elements in the eye fundus are contained in vessels, determining a vascular decorrelation signal enables visualization of 3-dimensional retinal and choroidal vascular network without the administration of intravenous dye and thus reducing the risk of potential adverse events.

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    4. Spectral Domain OCT in age-related macular degeneration: preliminary results with Spectralis HRA-OCT

      PURPOSE: Optical coherence tomography (OCT) imaging has become extremely valuable in demonstrating the presence of neurosensory or retinal pigment epithelial elevation or detachment associated with occult choroidal newvessels. This imaging method has recently been improved using the Fourier Transform and is called Spectral Domain-OCT or SD-OCT. The preliminary results using this imaging technique can now be used to analyze the advantages of the technique's sensitivity and acquisition speed. MATERIAL: and methods: A consecutive series of 100 AMD patients was examined prospectively and followed with the Spectralis HRA-OCT device (Heidelberg Engineering, Heidelberg, Germany). Each patient underwent a complete ophthalmologic examination ...
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    1-4 of 4
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  2. Topics in the News

    1. (3 articles) Centre Hospitalier Intercommunal de Créteil
    2. (2 articles) Gabriel J. Coscas
    3. (1 articles) University of Perugia
    4. (1 articles) Gisèle Soubrane
    5. (1 articles) Eric H. Souied
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