Results 231 to 240 of about 1,331,735 (269)

Pediatric optic nerve and optic nerve sheath diameter on magnetic resonance imaging

Pediatric Radiology, 2019
The normal values of optic nerve diameter and optic nerve sheath diameter might be beneficial in defining an abnormality such as optic nerve hypoplasia, or enlarged subarachnoid space, reflecting the state of increased intracranial pressure.To study the normal optic nerve diameter and optic nerve sheath diameter on magnetic resonance imaging (MRI) in ...
Pun, Janthanimi, Netsiri, Dumrongpisutikul   +1 more
openaire   +2 more sources

Optic Nerve Sheath Diameter in Preterm Infants: Suggested Values

Neonatology, 2021
<b><i>Objective:</i></b> Timely detection of elevated intracranial pressure (ICP) in highrisk preterm infants may be critical to avoid permanent neurologic sequelae. Size of optic nerve sheath diameter (ONSD) is highly correlated with changes in ICP.
Molly, Rayner, Tanya, Holt, Sibasis, Daspal, Prosanta, Mondal, Leanne, Langford, Gregory, Hansen   +5 more
openaire   +2 more sources

Evaluation of postictal optic nerve sheath diameter at epileptic patients

Epilepsy & Behavior, 2023
During a seizure, metabolic rate and, consequently, cerebral blood flow increase to provide the required maintenance energy. It is thought that this causes an increase in intracranial pressure, but there is no comprehensive research on this subject. In this study, we aimed to measure and follow optic nerve sheath diameter (ONSD) in patients who applied
Rabia, Handan Günsay, Gülşah, Çıkrıkçı Işık, Meral, Yıldırım, Özcan, Gökçek, Osman, Korucu, Yunsur, Çevik   +5 more
openaire   +2 more sources

Ultrasound assessment of optic nerve sheath diameter in healthy volunteers

Journal of Critical Care, 2016
Ultrasound assessment of optic nerve sheath diameter (ONSD) has been suggested as a non-invasive measure of intracranial pressure. Numerous small studies suggest its validity; however, discrepancy exists around normal values for ONSD. In this study we sought to define a normal value range for ONSD in a population of healthy adult volunteers.ONSD was ...
Patrick Goeres, Frederick A. Zeiler, Bertram Unger, Dimitrios Karakitsos, Lawrence M. Gillman   +4 more
openaire   +2 more sources

Optic Nerve Sheath Diameter for Preterm Infants: A Pilot Study

Neonatology, 2019
<b><i>Objective:</i></b> In preterm infants, early diagnosis and management of a raised intracranial pressure (ICP) may be important to improve neurodevelopmental outcomes. While invasive ICP monitoring is not recommended, ultrasonography of the optic nerve sheath diameter (ONSD) could provide a ...
Sarah, Ardell, Sibasis, Daspal, Tanya, Holt, Gregory, Hansen   +3 more
openaire   +2 more sources

Optic nerve sheath diameter does not change with patient position

The American Journal of Emergency Medicine, 2005
Optic nerve sheath diameter (ONSD) has been proposed as a marker for increased intracranial pressure. Trendelenburg's position is often used in hypotensive patients and reverse Trendelenburg's position (30 degrees head up) is often used in head injury patients.
Lisa, Romagnuolo, Vivek, Tayal, Christian, Tomaszewski, Timothy, Saunders, H James, Norton   +4 more
openaire   +2 more sources

Sonography of the Optic Nerve Sheath Diameter

Journal of Ultrasound in Medicine, 2017
De Bernardo, Maddalena, Marotta, Giuseppe, Rosa, Nicola   +2 more
openaire   +2 more sources

Bias in the measurement of optic nerve sheath diameter

The American Journal of Emergency Medicine, 2018
Hooman, Hossein-Nejad, Maryam, Bahreini, Fatemeh, Rasooli   +2 more
openaire   +2 more sources

Optic nerve sheath diameter: the next steps

Intensive Care Medicine, 2019
Robba C., Santori G., Czosnyka M., Corradi F., Citerio G.   +4 more
openaire   +2 more sources

Ultrasound optic nerve sheath diameter measurement in optic neuritis

The American Journal of Emergency Medicine, 2019
De Bernardo, Maddalena, Vitiello, Livio, Rosa, Nicola   +2 more
openaire   +2 more sources