Results 101 to 110 of about 184,356 (247)

Stability of a hot two-temperature accretion disc with advection [PDF]

, 1997
The effects of radial advection and thermal diffusion were considered in investigating the linear stability of an optically thin, two-temperature accretion disc. If the disc has only very little advection, we proved that the thermal instability exists when the disc is geometrically thin.
arxiv   +1 more source

Imaging of optic disc drusen: A comparative study [PDF]

Eye, 1995
The choice of imaging technique to identify the presence of optic disc drusen has not been well established. We performed computed tomography (CT), magnetic resonance imaging (MRI), fundus fluorescein angiography and B-mode ultrasonography (B-USG) on four patients with optic disc drusen as the sole identifiable pathological process.
David J Beale, Erna E Kritzinger, Sundeep Kheterpal, Peter A Good   +3 more
openaire   +3 more sources

Young Adults With Anterior Ischemic Optic Neuropathy: A Multicenter Optic Disc Drusen Study. [PDF]

, 2020
PURPOSE: Optic disc drusen (ODD), present in 2% of the general population, have occasionally been reported in patients with nonarteritic anterior ischemic optic neuropathy (NA-AION). The purpose of this study was to examine the prevalence of ODD in young
Biousse, V, Bursztyn, L, Citirak, G, Costello, F, Crum, AV, Digre, K, Fard, MA, Fraser, CL, Fraser, JA, Hamann, S, Huna-Baron, R, Katz, B, Lawlor, M, Malmqvist, L, Newman, NJ, Optic Disc Drusen Studies Consortium, Peragallo, JH, Petzold, A, Sibony, PA, Subramanian, PS, Warner, JEA, Wegener, M, Wong, SH   +22 more
core  

Correlation of retinal fluid and photoreceptor and RPE loss in neovascular AMD by automated quantification, a real‐world FRB! analysis

Acta Ophthalmologica, Volume 103, Issue 3, Page 295-303, May 2025.
Abstract Purpose To quantify ellipsoid zone (EZ) loss during anti‐VEGF therapy for neovascular age‐related macular degeneration (nAMD) and correlate these findings with nAMD disease activity using artificial intelligence‐based algorithms. Methods Spectral domain optical coherence tomography (Spectralis, Heidelberg Engineering) images from nAMD ...
Virginia Mares, Gregor S. Reiter, Markus Gumpinger, Oliver Leigang, Hrvoje Bogunovic, Daniel Barthelmes, Marcio B. Nehemy, Ursula Schmidt‐Erfurth   +7 more
wiley   +1 more source

Multiclass segmentation as multitask learning for drusen segmentation in retinal optical coherence tomography [PDF]

arXiv, 2019
Automated drusen segmentation in retinal optical coherence tomography (OCT) scans is relevant for understanding age-related macular degeneration (AMD) risk and progression. This task is usually performed by segmenting the top/bottom anatomical interfaces that define drusen, the outer boundary of the retinal pigment epithelium (OBRPE) and the Bruch's ...
arxiv  

Quantitative and Qualitative Evaluation of Explainable Deep Learning Methods for Ophthalmic Diagnosis [PDF]

arXiv, 2020
Background: The lack of explanations for the decisions made by algorithms such as deep learning has hampered their acceptance by the clinical community despite highly accurate results on multiple problems. Recently, attribution methods have emerged for explaining deep learning models, and they have been tested on medical imaging problems.
arxiv  

On the reliability of protostellar disc mass measurements and the existence of fragmenting discs [PDF]

, 2014
We couple non-magnetic, hydrodynamical simulations of collapsing protostellar cores with radiative transfer evolutionary models to generate synthetic observations. We then use these synthetic observations to investigate the extent to which a simple method for measuring protostellar disc masses used in the literature recovers the intrinsic masses of the
arxiv   +1 more source

The value of age of onset and family history as predictors of molecular diagnosis in a Swedish cohort of inherited retinal disease

Acta Ophthalmologica, Volume 103, Issue 3, Page 327-338, May 2025.
Abstract Purpose This study aimed to characterize clinical and genetic findings in a Swedish cohort with inherited retinal disease (IRD), identify predictors for achieving a molecular diagnosis and evaluate the effects of increased genetic testing over time.
Karl De Geer, Stefan Löfgren, Anna Lindstrand, Malin Kvarnung, Erik Björck   +4 more
wiley   +1 more source

Acute visual loss in a patient with optic disc drusen

Clinical Ophthalmology, 2013
Deborah KL Tan,1,2 Sharon LC Tow1–3 1Singapore National Eye Centre, 2Singapore Eye Research Institute, 3National University Health System, Singapore Abstract: Here we report a case of sudden, unilateral, painless visual loss in a middle-aged ...
Tan DK, Tow SL
doaj  

Optic Disc Drusen Presenting with Binasal Hemianopia

Türk Oftalmoloji Dergisi, 2013
Optic disc drusen (ODD) are defined as a form of calcific degeneration of the optic nerve. Visual field defects are seen in nearly 90% of the cases. We report a 32-year-old woman who was referred to our clinic with the complaint of longstanding blurred ...
Hasan Ali Tufan, Baran Gencer, Barış Kömür, Selçuk Kara, Betül Kızıldağ, Fatma Uysal   +5 more
doaj   +1 more source