Results 21 to 30 of about 1,411,173 (257)

Optic nerve sheath diameter in patients with hepatic encephalopathy

open access: yesPLOS ONE, 2022
Background This study aims to reveal whether the optic nerve sheath diameter (ONSD) increases in hepatic encephalopathy (HE) patients, and to determine ONSD is associated with the poor prognosis of patients with HE. Methods and material In this retrospective case-control study, HE patients who underwent cranial computerized tomography (CT) were ...
Nese Colak   +5 more
openaire   +4 more sources

Transscleral ultrasonographic measurements of the optic nerve sheath diameter and a regression analysis with morphometric measures of the globe in dogs

open access: yesVeterinární Medicína, 2019
To describe transscleral ultrasonography as a novel alternative approach for visualising the optic nerve sheath and measuring its diameter and to analyse the linear regressions of the optic nerve sheath diameter value with the weights and morphometric ...
Marta Vinas   +3 more
doaj   +1 more source

Effect of Positive End-Expiratory Pressure on the Sonographic Optic Nerve Sheath Diameter as a Surrogate for Intracranial Pressure during Robot-Assisted Laparoscopic Prostatectomy: A Randomized Controlled Trial. [PDF]

open access: yesPLoS ONE, 2017
Positive end-expiratory pressure (PEEP) can increase intracranial pressure. Pneumoperitoneum and the Trendelenburg position are associated with an increased intracranial pressure.
Ji-Hyun Chin   +7 more
doaj   +1 more source

OPTIC NERVE SHEATH DIAMETER, MEAN FLOW RATE, PULSATILITY INDEX AND PREECLAMPSIA

open access: yesProceedings of the Shevchenko Scientific Society: Medical Sciences, 2021
Background: Ultrasound has led to non-invasive neuromonitoring for surveillance and decision-making of aspects affecting the central nervous system. The aim was to determine the correlation between mean blood pressure and bilateral optic nerve sheath ...
Jorge Tonatiuh Pérez Cruz   +2 more
doaj   +1 more source

Measurement of Optic Nerve and Optic Nerve Sheath Diameter in MRI Brain

open access: yesJournal of Institute of Medicine Nepal, 2023
Introduction: Many diseases affect the size of the optic nerve and optic nerve sheath, measurement of which is important for the diagnosis and treatment of different pathologies of the brain and orbit. This study aimed to measure the diameter of the optic nerve and optic nerve sheath in MRI brain examinations.
Sharma Paudel   +3 more
openaire   +1 more source

Optic nerve sheath diameter estimation and ophthalmic POCUS

open access: yes, 2023
This is a presentation on point of care ultrasound examination of the eyes including optic nerve sheath diameter ...
Arunangshu Chakraborty (17350342)   +1 more
core   +1 more source

Evaluation of the effects of general anesthesia on the ultrasonographic optic nerve sheath diameter of dogs [PDF]

open access: yes, 2021
The objectives of this study were to investigate the effects of anesthesia on the ultrasonographic optic nerve sheath diameter of dogs. Dogs without signs of elevated intracranial pressure, glaucoma or optic nerve disease were anesthetized and optic ...
Drolet, Christopher
core   +1 more source

Optic nerve sheath diameter ultrasonography for elevated intracranial pressure detection

open access: yesAnnals of Clinical and Translational Neurology, 2020
Ultrasonographically measured optic nerve sheath diameter measurement has become a common noninvasive approach for detecting elevated intracranial pressure.
Li‐Juan Wang   +4 more
doaj   +1 more source

A HISTOMORPHOLOGICAL STUDY OF THE ORBITAL (RETROBULBAR) PORTION OF THE OPTIC NERVE IN ONE HOMPED CAMEL [PDF]

open access: yesAssiut Veterinary Medical Journal, 1982
The nerve fiber layer increases gradually in thickness as it reaches the optic disc where it ranges 563-750 um. The optic nerve gains its mayelin sheath while the axons had passed through the scleral layer of the intraoculer portion of the optic nerve ...
M.R. FATH EL-BAB   +4 more
doaj   +1 more source

The role of optic nerve sheath diameter ultrasound in brain infection

open access: yeseNeurologicalSci, 2021
Brain infections cause significant morbidity and mortality worldwide, especially in resource-limited settings with high HIV co-infection rates. Raised intracranial pressure [ICP] may complicate brain infection and worsen neurological injury, yet invasive ICP monitoring is often unavailable.
Stead, GA   +5 more
openaire   +4 more sources

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