1. University of Coimbra

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    1. Mentioned In 19 Articles

    2. Choroidal thickness and vascular density in macular telangiectasia type 2 using enface swept-source optical coherence tomography

      Choroidal thickness and vascular density in macular telangiectasia type 2 using enface swept-source optical coherence tomography
      Purpose To investigate the choroidal thickness (CT) and choroidal vascular densities (CVD) of patients with macular telangiectasia type 2 (MacTel2) and their association with other multimodal imaging features, using swept-source optical coherence tomography (SS-OCT). Methods Prospective, cross-sectional study. Consecutive patients with MacTel2 along with controls without any macular disease were included. Fundus photography, confocal blue reflectance, near-infrared reflectance, autofluorescence, fluorescein angiography, spectral domain OCT and SS-OCT were performed. Images were ...
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    3. Method And Equipment For Central Nervous System Characterization From Retina OCT Imaging Data

      Method And Equipment For Central Nervous System Characterization From Retina OCT Imaging Data
      Data processing method and computer equipment for the characterization of a parametric indicator for central nervous system health status based on data collected from non-invasive retina imaging by optical coherence tomography, OCT, said method comprising: processing data from the collected OCT data to compute a texture parameter or parameters from collected fundus imaging data; classifying the computed texture parameter or parameters into a central nervous system health status for characterizing ...
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    4. Optical coherence tomography angiography characterization of acute and late stage Purtscher retinopathy

      Optical coherence tomography angiography characterization of acute and late stage Purtscher retinopathy
      Purpose: To report a case of Purtscher retinopathy imaged with optical coherence tomography angiography. Methods: Case-report. Left eye fundoscopic examination in a 21-year old male after a road traffic accident with chest compression revealed multiple peri-papillary cotton-wool spots and intra- and pre-retinal hemorrhages. A diagnosis of Purtscher retinopathy was assumed. Results: In both the superficial and deep retinal plexuses, acute stage optical coherence tomography angiography identified multiple irregular areas of ...
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    5. Evaluation of choroidal lesions with swept-source optical coherence tomography

      Evaluation of choroidal lesions with swept-source optical coherence tomography
      Aims The aim of our study was to image choroidal lesions with swept-source optical coherence tomography (SS-OCT) and to identify the morphological characteristics associated with optimal visualisation. Methods This was a prospective, cross-sectional study. Patients with choroidal melanocytic lesions 3mm in thickness on B-scan ultrasonography were recruited. All participants underwent SS-OCT. On SS-OCT we evaluated qualitative (eg, lesion outline, detection of scleral-choroidal interface and quality of the image) and quantitative ...
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    6. Multimodal Evaluation of the Fellow Eye of Patients with Retinal Angiomatous Proliferation

      Multimodal Evaluation of the Fellow Eye of Patients with Retinal Angiomatous Proliferation
      Introduction: We conducted a multimodal, cross-sectional evaluation. Methods: Eyes were divided into 4 study groups: controls, early/intermediate age-related macular degeneration (AMD), fellow eyes of retinal angiomatous proliferation (RAP), and RAP eyes. Patients were evaluated with spectral-domain optical coherence tomography (OCT), enhanced depth imaging-OCT, and OCT angiography (OCTA). OCTA images were processed to generate maps of the vessel density and perfusion density of the superficial and deep retinal layers (SRL ...
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    7. Agreement between OCT Leakage and Fluorescein Angiography to Identify Sites of Alteration of the Blood–Retinal Barrier in Diabetes

      Agreement between OCT Leakage and Fluorescein Angiography to Identify Sites of Alteration of the Blood–Retinal Barrier in Diabetes
      Purpose To compare the location of the sites of lower reflectivity, as determined by OCT leakage using spectral domain (SD)-OCT, with sites of fluorescein leakage identified by fluorescein angiography (FA) in eyes with diabetic retinopathy. Design Prospective consecutive case series. Participants Fifty-two eyes from 28 patients with type 2 diabetes and presence of nonproliferative diabetic retinopathy. Methods All patients were imaged with FA and SD-OCT (Angioplex, Carl Zeiss Meditec ...
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    8. CHOROIDAL THICKNESS IN DIABETIC RETINOPATHY ASSESSED WITH SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY

      CHOROIDAL THICKNESS IN DIABETIC RETINOPATHY ASSESSED WITH SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY
      Purpose: To compare the choroidal thickness (CT) of diabetic eyes (different stages of disease) with controls, using swept-source optical coherence tomography. Methods: A multicenter, prospective, cross-sectional study of diabetic and nondiabetic subjects using swept-source optical coherence tomography imaging. Choroidal thickness maps, according to the nine Early Treatment Diabetic Retinopathy Study (ETDRS) subfields, were obtained using automated software. Mean CT was calculated as the mean value within the ETDRS grid, and ...
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    9. Comparison of diabetic retinopathy classification using fluorescein angiography and optical coherence tomography angiography

      Comparison of diabetic retinopathy classification using fluorescein angiography and optical coherence tomography angiography
      Purpose To analyse and compare the classification of eyes with diabetic retinopathy using fluorescein angiography (FA) and optical coherence tomography angiography (OCTA) performed either with AngioPlex or AngioVue. Methods This was an observational cross-sectional study of 50 eyes from 26 diabetic subjects. Two independent graders classified the FA angiograms, to assess the presence and severity of several characteristics according to the ETDRS Report 11, and a similar evaluation was performed ...
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    10. Heart transplant coronary artery disease: Multimodality approach in percutaneous intervention

      Heart transplant coronary artery disease: Multimodality approach in percutaneous intervention
      Coronary artery disease is the most important cause of late morbidity and mortality after heart transplantation. It is usually an immunologic phenomenon termed cardiac allograft vasculopathy, but can also be the result of donor-transmitted atherosclerosis. Routine surveillance by coronary angiography should be complemented by intracoronary imaging, in order to determine the nature of the coronary lesions, and also by assessment of their functional significance to guide the decision whether to ...
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    11. Optical coherence tomography Layout Simulation Using MATLAB®

      Optical coherence tomography Layout Simulation Using MATLAB®
      Optical Coherence Tomography (OCT) is a non-invasive optical imaging technique capable of producing 2D images or 3D reconstructions of nonhomogeneous samples. OCT is mainly used in ophthalmology as a powerful tool for the early diagnosis of ocular diseases. With OCT it is possible to obtain high resolution cross-sectional images of ocular structures, such as the retina or the anterior segment. An OCT platform for ocular image acquisition is being developed ...
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    12. Bioresorbable scaffolds for primary angioplasty: Optical coherence tomography follow-up

      Bioresorbable scaffolds for primary angioplasty: Optical coherence tomography follow-up
      A 44-year-old female was admitted for an anterior ST-segment elevation myocardial infarction (STEMI) and emergency coronary angiography revealed total occlusion of the mid segment of the left anterior descending artery (LAD). After thrombus aspiration, intracoronary nitrate administration and balloon predilatation, two overlapping Absorb bioresorbable vascular scaffolds (BVS) (3 mm18 mm and 2.5 mm28 mm; Abbott Vascular, Santa Clara, CA, USA) were implanted in the proximal, mid and distal LAD ...
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  2. About University of Coimbra

    University of Coimbra

    University of Coimbra is a Portuguese public university in Coimbra, Portugal. It is one of the oldest universities in continuous operation in Europe and the world, the oldest university of Portugal, and one of its largest higher education and research institutions.