1. Articles from Lea Querques

    1-24 of 36 1 2 »
    1. OCTA characterisation of microvascular retinal alterations in patients with central serous chorioretinopathy

      OCTA characterisation of microvascular retinal alterations in patients with central serous chorioretinopathy

      Purpose This study aimed to describe the characteristics of microvascular retinal alterations in eyes with chronic central serous chorioretinopathy (CSC) employing optical coherence tomography angiography (OCTA) analysis. Methods We collected data from 472 eyes with chronic CSC from 336 patients who had OCTA obtained. Each OCTA image was graded by two readers to assess the presence of microvascular retinal alterations, including regions of vascular rarefaction/retinal hypoperfusion, enlargement of the foveal avascular zone (FAZ) and presence of telangiectasias or microaneurysms. Volume spectral domain optical coherence tomography (SD-OCT) scans were obtained through the macula and the OCT was correlated with the ...

      Read Full Article
    2. Optical Coherence Tomography Parameters as Predictors of Treatment Response to Eplerenone in Central Serous Chorioretinopathy

      Optical Coherence Tomography Parameters as Predictors of Treatment Response to Eplerenone in Central Serous Chorioretinopathy

      Purpose : To present data on clinical response to eplerenone over a 1-year period in patients with central serous chorioretinopathy (CSC), and to evaluate optical coherence tomography (OCT) variables as predictors of treatment response at 3- and 12-month follow-up visits. Methods : Patients with acute or chronic CSC treated with eplerenone were retrospectively included. Clinical and imaging characteristics were recorded at baseline and at the 3-month and 12-month follow-up visits. Changes from baseline in quantitative measurements were calculated at each follow-up. Logistic regression analysis was computed to correlate clinical and OCT parameters at baseline with response to treatment at 3 and 12 ...

      Read Full Article
    3. Early response to the treatment of choroidal neovascularization complicating central serous chorioretinopathy: a OCT-angiography study

      Early response to the treatment of choroidal neovascularization complicating central serous chorioretinopathy: a OCT-angiography study

      Purpose To analyze the quantitative and qualitative early changes of choroidal neovascularization (CNV) associated with chronic central serous chorioretinopathy (CSC) after treatment using optical coherence tomography-angiography (OCT-A). Methods Charts of consecutive patients with diagnosis of chronic CSC complicated by CNV were retrospectively reviewed. Included patients were divided in photodynamic therapy (PDT) or aflibercept group on the basis of the treatment received (half-fluence PDT or aflibercept 2.0 mg/0.05 ml intravitreal injection). Main outcome measures included the changes between baseline and 1-month follow-up in CNV vessel density (VD) and area on OCT-A images after thresholding and binarization. Results A ...

      Read Full Article
    4. Progression of Diabetic Microaneurysms According to the Internal Reflectivity on Structural Optical Coherence Tomography and Visibility on Optical Coherence Tomography Angiography

      Progression of Diabetic Microaneurysms According to the Internal Reflectivity on Structural Optical Coherence Tomography and Visibility on Optical Coherence Tomography Angiography

      Purpose To investigate the progression of diabetic microaneurysms (MAs) according to the spectral-domain optical coherence tomography (SD-OCT) and OCT angiography (OCTA) characteristics and to evaluate their influence on the retinal extracellular fluid accumulation at 1 year follow-up in patients with nonproliferative diabetic retinopathy (NPDR). Design Prospective, observational case series. Methods Fourteen patients with NPDR underwent SD-OCT and OCTA at the baseline and at 1 year follow-up. For all the selected MAs the visibility, the changes of internal reflectivity, graded as hyporeflective, moderate, or hyperreflective, and the extracellular fluid accumulation surrounding each MA on SD-OCT at 1 year were evaluated. The ...

      Read Full Article
    5. Choroidal Caverns: A Previously Unreported Optical Coherence Tomography Finding in Best Vitelliform Dystrophy

      Choroidal Caverns: A Previously Unreported Optical Coherence Tomography Finding in Best Vitelliform Dystrophy

      Best vitelliform macular dystrophy (VMD) is an autosomal dominant inherited dystrophy, most frequently caused by mutations in the BEST1 gene. The authors describe “choroidal caverns,” a previously unreported optical coherence tomography finding in the choriocapillary and choroid of Best VMD. Histopathologic examination in eyes with Best VDM shows extensive deposition of lipofuscin in the retinal pigment epithelium (RPE) throughout the retina and accumulation of fibrillar material under the RPE and in the choroid. This supports the hypothesis that choroidal caverns could be a sign of the degenerative process involving the choroid in eyes with Best VMD.

      Read Full Article
    6. Optical coherence tomography angiography in pseudophakic cystoid macular oedema compared to diabetic macular oedema: qualitative and quantitative evaluation of retinal vasculature

      Optical coherence tomography angiography in pseudophakic cystoid macular oedema compared to diabetic macular oedema: qualitative and quantitative evaluation of retinal vasculature

      Aims To describe optical coherence tomography angiography (OCT-A) abnormalities of patients with pseudophakic cystoid macular oedema (PCMO) before and after pharmacological resolution, compared with diabetic macular oedema (DMO) and normal eyes. Methods In this retrospective, observational study, 44 eyes (30 patients) were included: 15 eyes (15 patients) affected by PCMO; 14 healthy fellow eyes used as negative control group; 15 eyes (15 age-matched and sex-matched patients) with DMO used as positive control group. All patients underwent a complete ophthalmological examination at baseline, including OCT-A scans of the macula through AngioPlex CIRRUS-5000 (Carl Zeiss Meditec, Dublin, USA). Patients with PCMO and ...

      Read Full Article
    7. Retinal vascular alterations in reticular pseudodrusen with and without outer retinal atrophy assessed by optical coherence tomography angiography

      Retinal vascular alterations in reticular pseudodrusen with and without outer retinal atrophy assessed by optical coherence tomography angiography

      Purpose To investigate the intraretinal structural and vascular alterations in patients featuring reticular pseudodrusen (RPD), RPD with outer retinal atrophy (ORA), and drusen. Design Observational cross-sectional study. Methods Clinical practice study including 68 eyes of 57 patients (22 eyes of 17 patients with RPD; 24 eyes of 21 patients with RPD+ORA; 22 eyes of 19 patients with drusen). Each patient underwent spectral-domain optical coherence tomography (OCT) and OCT angiography (OCT-A). Measurement of retinal layers’ thickness was obtained by the automated segmentation protocol of the Spectralis OCT (Heidelberg Eye Explorer V.1.9.10.0). The superficial capillary plexus (SCP ...

      Read Full Article
    8. Macular Perfusion Parameters in Different Angiocube Sizes: Does The Size Matter in Quantitative Optical Coherence Tomography Angiography?

      Macular Perfusion Parameters in Different Angiocube Sizes: Does The Size Matter in Quantitative Optical Coherence Tomography Angiography?

      Purpose : To investigate the macular quantitative parameters interchangeability of three different optical coherence tomography angiography (OCT-A) angiocubes (i.e., 3 × 3, 6 × 6, and 12 × 12 mm) on healthy subjects and patients affected by diabetic retinopathy (DR) and to assess the interrater reliability of such indices across the different scan protocols. Methods : Retrospective study involving 20 eyes of healthy subjects and 20 eyes with DR. All eyes underwent swept-source OCT-A with 3 × 3-, 6 × 6-, and 12 × 12-mm angiocubes centered on the fovea. Foveal avascular zone (FAZ) area and vessel density on 3 × 3-, 6 × 6-, and 12 × 12-mm macular ...

      Read Full Article
    9. DualTrack Technology Improves Optical Coherence Tomography Angiography Image Quality

      DualTrack Technology Improves Optical Coherence Tomography Angiography Image Quality

      BACKGROUND AND OBJECTIVE: To evaluate the effects of DualTrack Motion Correction Technology on the performance of AngioVue optical coherence tomography angiography (Optovue, Freemont, CA). PATIENTS AND METHODS: Fifty subjects underwent two consecutive examinations with AngioVue. The operator inactivated the eye-tracking (ET) technology before the second examination. Two operators measured execution time, excluded low-quality images, and counted the number of motion artifacts per image. RESULTS: The mean execution time was lower without ET in all the groups ( P < .05), regardless of retinal diseases. Percentages of available images and low-quality images were 75.0% and 25.0%, respectively, with ET and 63 ...

      Read Full Article
    10. Optical Coherence Tomography Angiography in the Evaluation of Geographic Atrophy Area Extension

      Optical Coherence Tomography Angiography in the Evaluation of Geographic Atrophy Area Extension

      Purpose : To investigate the application of optical coherence tomography angiography (OCT-A) in evaluation of geographic atrophy (GA) secondary to age-related macular degeneration (AMD). Methods : Patients with GA were prospectively enrolled and studied with blue fundus autofluorescence (FAF), en face structural OCT, and OCT-A. OCT-A images were acquired using a slab of whole choroid, whereas en face structural OCT images were obtained at the ellipsoid zone (EZ), at the choroidal (CH) level, and at the scleral (SC) level. Three readers independently measured the GA extension areas and evaluated the foveal sparing in each examination. Intraobserver/interobserver agreements and agreement between each ...

      Read Full Article
    11. Swept-source optical coherence tomography angiography in serpiginous choroiditis

      Swept-source optical coherence tomography angiography in serpiginous choroiditis

      ackground/Aims To analyse choroidal vascular density of affected and non-affected areas in active and inactive serpiginouschoroiditis (SC) by means of optical coherence tomography angiography (OCT-A). Methods In this cross-sectional and observational study, 22 eyes of 11 patients diagnosed with SC were included. All patients underwent blue-light fundus autofluorescence (spectralis Heidelberg retinalangiography+OCT) and swept-source OCT-A (AngioPlex Elite 9000 SS-OCT, Carl Zeiss Meditech) to analyse qualitative features and choroidal vessel density of areas considered affected, and the inner and the outer border of the lesions. Unaffected areas of otherwise healthy retina have also been studied. Results All inactive inflammatory lesions ...

      Read Full Article
    12. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FEATURES OF ANGIOID STREAKS

      OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FEATURES OF ANGIOID STREAKS

      Purpose: To analyze the optical coherence tomography angiography features of eyes affected with angioid streaks (AS) and to evaluate their ability to predict choroidal neovascularization (CNV) activity. Methods: Angioid streaks were individuated from a pool of consecutive patients. Eyes with and without CNV were evaluated by multimodal imaging. Results: Thirty-eight eyes of 19 consecutive patients diagnosed with AS were included. Thirty of 38 eyes with CNV and 8 of 38 eyes without CNV were included. In the majority of cases, CNV showed on optical coherence tomography angiography tangled appearance always associated with signs of neovascular inactivity on multimodal imaging (100 ...

      Read Full Article
    13. Refining Coats’ disease by ultra-widefield imaging and optical coherence tomography angiography

      Refining Coats’ disease by ultra-widefield imaging and optical coherence tomography angiography

      Purpose The purpose of our study was to describe ultra-widefield (UWF) imaging and optical coherence tomography angiography (OCT-A) findings in affected and fellow eyes of patients with Coats’ disease. Methods Consecutive patients affected by Coats’ disease were prospectively recruited at the Department of Ophthalmology, San Raffaele Hospital, Milan, Italy in this cross-sectional, observational study. Patients underwent UWF color fundus photographs, UWF green autofluorescence, UWF fluorescein angiography (FA), optical coherence tomography (OCT), with 3 × 3 mm and 6 × 6 mm OCT-A scans of the macula. Images were qualitatively evaluated by two independent operators for the presence of pathology. Results Eleven patients ...

      Read Full Article
    14. Optical Coherence Tomography Angiography in Dry Age-related Macular Degeneration

      Optical Coherence Tomography Angiography in Dry Age-related Macular Degeneration

      Optical coherence tomography angiography (OCT-A) is a new imaging modality that provides non-invasive characterization and quantification of the microvasculature in different retinal conditions. The purpose of this paper is to give an updated review of the features of dry age-related macular degeneration investigated by means of new generation OCT-A. We searched PubMed and Medline using the terms “optical coherence tomography angiography” associated with “age-related macular degeneration”, “drusen”, “reticular pseudodrusen,” and “geographic atrophy” and reviewed publications up to January, 2017.

      Read Full Article
    15. Optical Coherence Tomography Angiography of Venous Loops in Diabetic Retinopathy

      Optical Coherence Tomography Angiography of Venous Loops in Diabetic Retinopathy

      Venous loops are relatively rare manifestations of diabetic retinopathy. The authors describe a case characterized by the development of a venous loop during a 3-year period. Optical coherence tomography angiography (OCTA) revealed a hyperintense signal from the lesion, attesting an ordinary flow into the venous loop. OCTA also showed an area of capillary loss in proximity of the lesion, which is in agreement with the proposed pathogenesis for venous loops, developed to bypass an area of retinal vessels occlusion.

      Read Full Article
    16. Relationship between internal reflectivity of diabetic microaneurysms on SD-OCT and detection on OCT Angiography

      Relationship between internal reflectivity of diabetic microaneurysms on SD-OCT and detection on OCT Angiography

      Purpose To correlate the appearance of Microaneurysms (MAs) on structural spectral-domain optical coherence tomography (SD-OCT) with their detection on OCT angiography (OCTA) in patients with non-proliferative diabetic retinopathy (NPDR). Design Inter-instrument reliability study. Methods Sixteen patients with NPDR without macular edema underwent SD-OCT and OCTA. To compare MAs seen on OCTA to those on SD-OCT, we superimposed the OCTA superficial capillary plexus (SCP) vascular landmarks onto those of the near infrared. Two observers blinded to patient groupings evaluated reflectivity of MAs on SD-OCT scans, graded as hypo-, moderate, or hyper-reflective, and their visualization at the level of SCP and deep ...

      Read Full Article
    17. Optical Coherence Tomography Angiography Features in Melanocytoma of the Optic Nerve

      Optical Coherence Tomography Angiography Features in Melanocytoma of the Optic Nerve

      Optic disc melanocytoma (ODM) is a pigmented tumor with malignant potential characterized clinically as a dark brown to black lesion with feathery margins. The authors report a case of ODM and describe the utility of optical coherence tomography angiography (OCTA) in detecting superficial tumor vascularization. This case report demonstrated the ability of OCTA to reveal the fine abnormal retinal vasculature on the surface of the lesion, a characteristic of ODM, which has been previously correlated with tumor growth.

      Read Full Article
    18. Optical coherence tomography angiography features of intrachoroidal peripapillary cavitation

      Optical coherence tomography angiography features of intrachoroidal peripapillary cavitation

      To evaluate the optical coherence tomography angiography (OCT-A) features of a peripapillary intrachoroidal cavitation (ICC) in a patient with high myopia. A 67-year-old woman with ICC underwent visual acuity testing, refraction, slit-lamp biomicroscopy, dilated fundus examination, and OCT-A. The main findings are described in this case report. Best-corrected visual acuity was 20/20 in both eyes. Fundus examination revealed in the right eye a macular scar, a tilted disc along with a peripapillary staphyloma, and an orange-yellowish lesion on the inferior border of the disc. Structural OCT B-scan showed ICC as an intrachoroidal hyporeflective space located below the normal plane ...

      Read Full Article
    19. Choroid morphometric analysis in non-neovascular age-related macular degeneration by means of optical coherence tomography angiography

      Choroid morphometric analysis in non-neovascular age-related macular degeneration by means of optical coherence tomography angiography

      Aims To describe the vascular changes in patients affected by non-neovascular age-related macular degeneration (AMD), featuring reticular pseudodrusen (RPD), drusen, or both RPD and drusen by means of optical coherence tomography angiography (OCT-A). Methods Cross-sectional observational case series. Patients with non-neovascular AMD presenting at the Medical Retina Service of the Department of Ophthalmology, University Vita-Salute San Raffaele in Milan were recruited. Patients underwent best-corrected visual acuity, biomicroscopy, infrared reflectance, short-wavelength fundus autofluorescence and OCT-A (AngioPlex, CIRRUS HD-OCT 5000, Carl Zeiss Meditech, Dublin, USA). Main outcome was quantification of vessel density, stromal tissue, and vascular/stromal (V/S) ratio at the ...

      Read Full Article
    20. Optical coherence tomography angiography of myopic choroidal neovascularisation

      Optical coherence tomography angiography of myopic choroidal neovascularisation

      Background/aims To describe the morphological features of choroidal neovascularisation (CNV) and to report the ability of optical coherence tomography angiography (OCT-A) to detect the presence of myopic CNV by means of this new technique. Methods Myopic CNV cases were individuated from a pool of patients with pathological myopia consecutively presenting between October 2015 and March 2016. OCT-A images were assessed for classification of morphological features, and to estimate sensitivity and specificity. Results Thirty-six eyes of 28 consecutive patients with myopic CNV were included. In 4 out of 36 eyes it was not possible to classify the CNV ‘shape’, ‘core ...

      Read Full Article
    21. Optical coherence tomography angiography: a useful tool for diagnosis of treatment-naïve quiescent choroidal neovascularization

      Optical coherence tomography angiography: a useful tool for diagnosis of treatment-naïve quiescent choroidal neovascularization

      Purpose To describe the optical coherence tomography angiography (OCT-A) features of treatment-naïve quiescent choroidal neovascularization (CNV) secondary to age-related macular degeneration, and to estimate the detection rate for neovascularization by means of OCT-A. Design Diagnostic tool validity assessment. Methods Treatment-naïve quiescent CNV were identified from a pool of patients at 2 retina referral centers. Patients underwent a complete ophthalmologic examination including fluorescein angiography, indocyanine green angiography, spectral-domain OCT and OCT-A. Detection rates of CNV by means of OCT-A were estimated with a second cohort of patients without CNV (negative controls) Results Twenty-two eyes of 20 consecutive patients with ...

      Read Full Article
    22. Subretinal hyperreflective material imaged with optical coherence tomography angiography

      Subretinal hyperreflective material imaged with optical coherence tomography angiography

      Purpose The range of subretinal hyperreflective material (SHRM) seen in macular disease includes type 2 macular neovascularization, fibrosis, exudation, vitelliform material and hemorrhage. The prognostic significance of SHRM has been evaluated retrospectively in clinical trials but discriminating SHRM subtypes traditionally requires multiple imaging modalities. The purpose of this study is to describe optical coherence tomography angiography (OCTA) flow characteristics and artifacts which might help to distinguish SHRM subtypes. Design Validity analysis. Methods Patients with age-related macular degeneration (AMD), myopia, pachychoroid disease and macular dystrophy, manifesting SHRM on optical coherence tomography (OCT), were recruited. Clinical chart review and multimodal imaging established ...

      Read Full Article
    23. Optical Coherence Tomography Angiography Demonstration of Choroidal Neovascularization in Malattia Leventinese

      Optical Coherence Tomography Angiography Demonstration of Choroidal Neovascularization in Malattia Leventinese

      In a case of Malattia Leventinese, optical coherence tomography angiography led to the diagnosis of type 1 neovascularization, despite absence of evidence on conventional dye-based angiography. The authors hypothesize that, at least in some cases, accumulation of subretinal fluid in Malattia Leventinese could be due to a subretinal pigment epithelium (RPE) neovascular component rather than creation of hydrophobic barrier at the RPE and Bruch's membrane.

      Read Full Article
    1-24 of 36 1 2 »
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Topics in the News

    1. (36 articles) Giuseppe Querques
    2. (28 articles) Francesco Bandello
    3. (18 articles) Università Vita-Salute San Raffaele
    4. (17 articles) Centre Hospitalier Intercommunal de Créteil
    5. (11 articles) Eric H. Souied
    6. (7 articles) San Raffaele Scientfic Institute
    7. (5 articles) Nathalie Massamba
    8. (5 articles) Heidelberg Spectralis
    9. (2 articles) Gabriel J. Coscas
    10. (2 articles) Carl Zeiss Meditec
    11. (1 articles) FDA
    12. (1 articles) Brian K. Courtney
    13. (1 articles) Conavi Medical Inc.
  3. Popular Articles

  4. Picture Gallery

    Insights into pathology of cuticular drusen from integrated confocal scanning laser ophthalmoscopy imaging and corresponding spectral domain optical coherence tomography Natural Course of Adult-Onset Foveomacular Vitelliform Dystrophy: A Spectral-Domain Optical Coherence Tomography Analysis Three dimensional spectral domain optical coherence tomography features of retinal–choroidal anastomosis Analysis of progression of reticular pseudodrusen by spectral domain optical coherence tomography Microperimetric Correlations of Autofluorescence and Optical Coherence Tomography Imaging in Dry Age-Related Macular Degeneration Analysis of Progression of Reticular Pseudodrusen by Spectral Domain–Optical Coherence Tomography En face enhanced depth imaging optical coherence tomography of fibrovascular pigment epithelium detachment Enhanced depth imaging optical coherence tomography in type 2 diabetes Multimodal Evaluation of Foveal Sparing in Patients With Geographicatrophy Due to Age-Related Macular Degeneration Conavi Medical and Japan Lifeline Announce MHLW Approval of Novasight Hybrid Intravascular Imaging System for Japanese Market Capsule Endomicroscopy for Visualization of the Small Intestine in EED Population in Pakistan Three-dimensional detection and quantification of defects in SiC by optical coherence tomography