Results 101 to 110 of about 9,901 (229)

3-D half-spheroid models for transcranial doppler ultrasound propagation channels

open access: yes, 2014
In this paper, a method of characterization of a transcranial Doppler (TCD) ultrasound propagation channel is proposed. A simplified 3-D isotropic half-spheroid scattering channel model is described.
Weir, Alexander   +5 more
core   +1 more source

Occurrence of vasospasm and infarction in relation to a focal monitoring sensor in patients after SAH: placing a bet when placing a probe? [PDF]

open access: yes, 2013
Introduction: Vasospastic brain infarction is a devastating complication of aneurysmal subarachnoid hemorrhage (SAH). Using a probe for invasive monitoring of brain tissue oxygenation or blood flow is highly focal and may miss the site of cerebral ...
Ulrich, Christian T.   +16 more
core   +1 more source

Better 10‐Year Cerebrovascular Outcome After Transplant Than on Standard‐Care in Sickle Cell Anemia: DREPAGREFFE Trial

open access: yesAmerican Journal of Hematology, Volume 101, Issue 8, Page 1799-1817, August 2026.
ABSTRACT Management of cerebral vasculopathy in sickle cell anemia (SCA) includes standard‐care, that is, chronic transfusion (CT) or hydroxyurea, and hematopoietic cell transplantation (HCT). DREPAGREFFE‐1 (December 2010/June 2013), a French multicenter trial, was the first prospective trial comparing standard‐care to match sibling donor (MSD)‐HCT in ...
Francoise Bernaudin   +40 more
wiley   +1 more source

Detection of paradoxical cerebral echo contrast embolization by transcranial Doppler ultrasound.

open access: yes, 1991
Contrast echocardiography has been shown to be a sensitive method for detecting patent foramen ovale in embolic stroke, implying paradoxical embolization.
S M Teague, M K Sharma
core   +1 more source

Backrest Position and Outcome in Comatose Survivors of Out‐of‐Hospital Cardiac Arrest: Protocol for a Multi‐Center Randomized Comparison Within the Danish Out‐of‐Hospital Cardiac Arrest (DANOHCA) Trial

open access: yesActa Anaesthesiologica Scandinavica, Volume 70, Issue 7, August 2026.
ABSTRACT Background Intensive care following resuscitation from out‐of‐hospital cardiac arrest (OHCA) is based on a set of interventions, all of which are intended to reduce anoxic brain injury and improve outcomes, including sedation, mechanical ventilation, circulatory optimization, and temperature control protocols.
Jesper Kjaergaard   +13 more
wiley   +1 more source

Assessment of Cerebral Vasomotor Reactivity by Transcranial Doppler Ultrasound and Breath-Holding

open access: yes, 1995
Background and Purpose Evaluating cerebrovascular vasomotor reactivity seems to be of prognostic relevance for patients with occlusive internal carotid artery disease.
M. Müller   +3 more
core   +1 more source

Protocol‐Based Management of Medication Confounders in Brain Death Determination: A Multi‐Institutional Review

open access: yesJACCP: JOURNAL OF THE AMERICAN COLLEGE OF CLINICAL PHARMACY, Volume 9, Issue 7, July 2026.
ABSTRACT Background Determination of death by neurologic criteria (DNC) relies on clinical examination, provided no confounding conditions affect reliability. Current guidelines require patients to be free of confounders before neurologic testing but do not specify how these confounders should be assessed or managed.
Alexander Nixon   +7 more
wiley   +1 more source

Osteoarthritis: Epidemiology, Diagnosis, and Treatment

open access: yesMedComm, Volume 7, Issue 7, July 2026.
Osteoarthritis (OA) is a multifactorial degenerative joint disease and a leading cause of disability worldwide. This graphical abstract summarizes the epidemiology, diagnostic strategies, and therapeutic approaches of OA. OA development is driven by aging, metabolic dysregulation, and mechanical stress, leading to progressive joint degeneration ...
Qin Ru   +7 more
wiley   +1 more source

Venous Transcranial Doppler Ultrasound Monitoring in Acute Dural Sinus Thrombosis

open access: yes, 1995
Background and Purpose We sought to establish the efficacy of the Doppler technique in the evaluation of the intracranial venous system and to assess its usefulness in the monitoring of venous collateral pathways in superior ...
Matthias Schultz   +3 more
core   +1 more source

Respiration Can Trigger Cerebrovascular Reactivity: A Novel Method to Quantify Cerebrovascular Resistance Dynamics Using Real‐Time Phase‐Contrast MRI

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 1, Page 83-95, July 2026.
ABSTRACT Purpose To directly quantify respiration‐driven cerebrovascular resistance dynamics (CRD) using a gas‐free MRI framework based on the internal‐to‐external artery carotid flow ratio (ratio_Q). Theory and Methods Two independent datasets (n = 10 and n = 17) were used to evaluate repeatability and to compare breathing conditions.
Pan Liu   +5 more
wiley   +1 more source

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