Results 81 to 90 of about 409,668 (187)

Increased Ocular Pulse Amplitude Associated with Unilateral Dysgenesis of the Orbital Roof

Case Reports in Ophthalmology, 2015
Introduction: Two patients (one with neurofibromatosis type 1) presented with unilateral ocular pulsation. Methods: A CT scan of the orbits revealed extensive dysgenesis of the orbital roof with herniation of the frontal lobe into the orbit in both cases.
Ami Shah Vira, Ashraf M. Mahmoud, Cynthia J. Roberts, Steven E. Katz   +3 more
doaj   +1 more source

Context Tree based Image Contour Coding using A Geometric Prior [PDF]

, 2016
If object contours in images are coded efficiently as side information, then they can facilitate advanced image / video coding techniques, such as graph Fourier transform coding or motion prediction of arbitrarily shaped pixel blocks. In this paper, we study the problem of lossless and lossy compression of detected contours in images.
arxiv   +1 more source

Incidence and risk factors of nocturnal penetrations and aspirations in patients with obstructive sleep apnea during drug‐induced sedation endoscopy

Journal of Sleep Research, Volume 34, Issue 1, February 2025.
Summary Obstructive sleep apnea has been linked to an increased risk of pneumonia, possibly due to higher rates of nighttime aspirations. Few studies have directly investigated such aspirations in individuals with sleep apnea. This retrospective study included 142 adult patients with obstructive sleep apnea who underwent drug‐induced sedation endoscopy
Igor Vainer, Raviv Allon, Yael Shapira‐Galitz, Lior Strinkovsky, Song Tar Toh, Shaun Loh, Uri Alkan   +6 more
wiley   +1 more source

Predicting Candidacy for Unilateral Hypoglossal Nerve Stimulation Without Drug‐Induced Sleep Endoscopy

OTO Open, Volume 9, Issue 1, January-March 2025.
Abstract Objective Patients undergo a drug‐induced sleep endoscopy before unilateral hypoglossal nerve stimulation. This study aims to reduce the need for preoperative drug‐induced sleep endoscopy by predicting favorable collapse patterns at the velum based on clinical examination and sleep study data.
Samuel Tschopp, Urs Borner, Marco Caversaccio, Kurt Tschopp   +3 more
wiley   +1 more source

Measurement of Intraocular Pressure with Applanation, Dynamic Contour, and Air-Puff Tonometers: A Comparative Study in Primary Open-Angle Glaucoma and Healthy Cases

Beyoglu Eye Journal, 2020
INTRODUCTION[|]This study aimed to investigate and compare the reliability of Goldmann applanation tonometer (GAT), dynamic contour (DCT), and noncontact (NCT) tonometers in intraocular pressure (IOP) measurement and the affecting parameters in healthy ...
Kemal Turgay Ozbilen, M. Selim Kocabora
doaj   +1 more source

Interacting Contour Stochastic Gradient Langevin Dynamics [PDF]

arXiv, 2022
We propose an interacting contour stochastic gradient Langevin dynamics (ICSGLD) sampler, an embarrassingly parallel multiple-chain contour stochastic gradient Langevin dynamics (CSGLD) sampler with efficient interactions. We show that ICSGLD can be theoretically more efficient than a single-chain CSGLD with an equivalent computational budget.
arxiv  

Chronic hyperglycemia alters retinal astrocyte microstructure and uptake of cholera toxin B in a murine model of diabetes

Journal of Neurochemistry, Volume 169, Issue 1, January 2025.
Compared to control animals, retinal astrocytes from diabetic animals increase the frequency of pad motifs while decreasing extension of bristle motifs. They additionally uptake more exogenous cholera toxin B (CTB) than control. When diabetic conditions are coupled with intravitreal injury, increases in both pads and bristles occur. A large increase in
Joseph M. Holden, Olivia L. Bossardet, Ghazi Bou Ghanem, David J. Calkins, Lauren K. Wareham   +4 more
wiley   +1 more source

Wearable micro‐electro‐mechanical systems pressure sensors in health care: Advancements and trends—A review

IET Wireless Sensor Systems, Volume 14, Issue 6, Page 233-247, December 2024.
The primary focus of this review paper is to present the extensive role of MEMS pressure sensors in wearable healthcare applications both in research as well as in the industry. The potential applications of these sensors are dealt in detail with specific descriptions on the device performance that will cater for wearable health monitoring purposes ...
S. S. Kiran Kolluri, S. Ananiah Durai
wiley   +1 more source

Modalities of Tonometry and their Accuracy with Respect to Corneal Thickness and Irregularities

Journal of Optometry, 2008
Recent advances in tonometry have led to the development of a number of devices with differing clinical applications. Their role in cases of abnormal corneal thickness and surface irregularities is particularly important, as inaccurate estimation of the ...
Carlos Gustavo V. De Moraes, Tiago S. Prata, Jeffrey Liebmann, Robert Ritch   +3 more
doaj   +1 more source

Dynamic Maintenance of Half-Space Depth for Points and Contours [PDF]

arXiv, 2011
Half-space depth (also called Tukey depth or location depth) is one of the most commonly studied data depth measures because it possesses many desirable properties for data depth functions. The data depth contours bound regions of increasing depth. For the sample case, there are two competing definitions of contours: the rank-based contours and the ...
arxiv