1. University of São Paulo

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    1. Mentioned In 109 Articles

    2. Optical Coherence Tomography in Ophthalmology

      Optical Coherence Tomography in Ophthalmology
      Optical coherence tomography (OCT) is an optical signal acquisition and processing method that captures micrometer-resolution three-dimensional images from within biological tissues. In recent years, OCT has become an important imaging technology used in diagnosing and following macular pathologies. It has complemented fluorescein angiography in many cases, especially in the diagnosis and management of various retinal disorders, including macular edema and age-related macular degeneration. In addition, further development enabled application of ...
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    3. Quantification of retinal neural loss in patients with neuromyelitis optica and multiple sclerosis with or without optic neuritis using optical coherence tomography

      Quantification of retinal neural loss in patients with neuromyelitis optica and multiple sclerosis with or without optic neuritis using optical coherence tomography
      Objective: To compare retinal nerve fiber layer (RNFL) and macular thickness measurements in patients with multiple sclerosis (MS) and neuromyelitis optica (NMO) with or without history of optic neuritis and in controls using Fourier-domain (FD) optical coherence tomography (OCT). Methods: Patients with MS (n=60), NMO (n=33), longitudinal extensive transverse myelitis (LETM) (n=28) and healthy controls (n=41) were submitted to ophthalmic examination, including automated perimetry, and to ...
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    4. Nerve fiber layer in glaucomatous hemifield loss: a case-control study with time- and spectral-domain optical coherence tomography

      Nerve fiber layer in glaucomatous hemifield loss: a case-control study with time- and spectral-domain optical coherence tomography
      ...de Projetos de Pesquisa (CAPPesq) da Diretoria Clínica do Hospital das Clínicas e da Faculdade de Medicina da Universidade de São Paulo. Protocolo nº 0115/08. Disclosure of potential conflicts of interest: A.S.C.Reis, No...
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    5. Optic Disc Margin Anatomy in Patients with Glaucoma and Normal Controls with Spectral Domain Optical Coherence Tomography

      Optic Disc Margin Anatomy in Patients with Glaucoma and Normal Controls with Spectral Domain Optical Coherence Tomography
      Objective To characterize optic nerve head (ONH) anatomy related to the clinical optic disc margin with spectral domain-optical coherence tomography (SD-OCT). Design Cross-sectional study. Participants Patients with open-angle glaucoma with focal, diffuse, and sclerotic optic disc damage, and age-matched normal controls. Methods High-resolution radial SD-OCT B-scans centered on the ONH were analyzed at each clock hour. For each scan, the border tissue of Elschnig was classified for obliqueness (internally oblique ...
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    6. Spectral-domain optical coherence tomography for early glaucoma assessment: analysis of macular ganglion cell complex versus peripapillary retinal nerve fiber layer

      Spectral-domain optical coherence tomography for early glaucoma assessment: analysis of macular ganglion cell complex versus peripapillary retinal nerve fiber layer
      ..., Brazil , * Verônica Castro Lima, MD Affiliations + Hospital Medicina dos Olhos, São Paulo, Brazil + Federal University of São Paulo, São Paulo, Brazil , * Dinorah P.E. Castro, MD Affiliations + Federal University of Sã...
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    7. Should we rely on OCT to assess the improvements of new generation drug-eluting stents?

      Should we rely on OCT to assess the improvements of new generation drug-eluting stents?
      Drug-eluting stents have changed the landscape of interventional cardiology. Since their introduction, over a decade ago, their primary and ultimate effect the ability to decrease neointimal proliferation still remains undisputable. The reduction of restenosis after drug-eluting stents pushed the borders of percutaneous coronary intervention towards the treatment of patients with complex anatomies, while improving the durability of the procedure. However, the intense modulation of vascular healing by drug-eluting stents may ...
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    8. Barrett's esophagus: surveillance and reversal

      Barrett's esophagus: surveillance and reversal
      The following on surveillance and reversal of Barrett's esophagus (BE) includes commentaries on criteria for surveillance even when squamous epithelium stains normally with a variety of biomarkers; the long-term follow-up of surgery versus endoscopic ablation of BE; the recommended surveillance intervals in patients without dysplasia; the sampling problems related to anatomic changes following fundoplication; the value of tissue spectroscopy and optical coherence tomography; the cost-effectiveness of biopsy protocols for ...
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    9. Influence of optic disc size on the diagnostic performance of macular ganglion cell complex and peripapillary retinal nerve fiber layer analyses in glaucoma

      Influence of optic disc size on the diagnostic performance of macular ganglion cell complex and peripapillary retinal nerve fiber layer analyses in glaucoma
      ...lica Pacheco2, Jae Min Lee2, Marcelo I Dimantas2, Tiago Santos Prata1,2 1Department of Ophthalmology, Federal University of São Paulo, São Paulo, 2Hospital Medicina dos Olhos, São Paulo, 3Centro Brasileiro de Especialida...
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    10. Autofluorescence Imaging and Spectral-Domain Optical Coherence Tomography in Incomplete Congenital Stationary Night Blindness and Comparison With Retinitis Pigmentosa

      Autofluorescence Imaging and Spectral-Domain Optical Coherence Tomography in Incomplete Congenital Stationary Night Blindness and Comparison With Retinitis Pigmentosa
      ...ch Center, Manhattan Eye, Ear, and Throat Hospital, New York, New York + Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil , * John C. Hwang Affiliations + Department of Ophthalmology, Colum...
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    11. Biomechanical corneal changes induced by different flap thickness created by femtosecond laser

      Biomechanical corneal changes induced by different flap thickness created by femtosecond laser
      OBJECTIVE: To evaluate the impact of the creation of corneal flaps at different thicknesses on the biomechanical properties of swine corneas. METHOD: Twelve swine eyes were obtained to form two groups: 100 m flap thickness and 300 m flap thickness. Each eye was submitted to the following examinations: raster topography to investigate corneal curvature alterations, ocular response analyzer to investigate corneal hysteresis change, optical coherence tomography to measure central corneal ...
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    12. Automatic Coronary Wall Segmentation in Intravascular Ultrasound Images Using Binary Morphological Reconstruction

      Automatic Coronary Wall Segmentation in Intravascular Ultrasound Images Using Binary Morphological Reconstruction
      Intravascular ultrasound (IVUS) image segmentation can provide more detailed vessel and plaque information, resulting in better diagnostics, evaluation and therapy planning. A novel automatic segmentation proposal is described herein; the method relies on a binary morphological object reconstruction to segment the coronary wall in IVUS images. First, a preprocessing followed by a feature extraction block are performed, allowing for the desired information to be extracted. Afterward, binary versions of the ...
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    13. 76-90 of 109 « 1 2 3 4 5 6 7 8 »
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  2. About University of São Paulo

    University of São Paulo

    University of São Paulo (USP) is the largest institution dedicated to higher education and research in Brazil. A large part of the Brazilian masters and PhDs receive their training here. This website will tell you a little more about our structure, application procedures and the services we offer to students from abroad.