Results 21 to 30 of about 42,335 (283)

Transcranial Doppler ultrasound validation of BOLD-fMRI cerebral blood flow relationship. [PDF]

open access: yesMagn Reson Med
Abstract Purpose A precise understanding of the interplay between cerebral blood flow (CBF) and blood oxygen level‐dependent (BOLD) fMRI signals is essential for advancing cerebrovascular research. Although calibrated BOLD approaches often rely on arterial spin labelling (ASL) to estimate CBF, alternative validation using transcranial Doppler ...
Hayes G, Pinto J, Sparks S, Bulte DP.
europepmc   +2 more sources

Transcranial Doppler ultrasonography (uses, limitations, and potentials): a review article

open access: yesEgyptian Journal of Neurosurgery, 2021
Background The additional information that transcranial Doppler can provide as part of a multimodal imaging protocol in many clinical settings has not been evaluated.
Mohammed F.A Ali
doaj   +1 more source

Identified barriers and facilitators to stroke risk screening in children with sickle cell anemia: results from the DISPLACE consortium

open access: yesImplementation Science Communications, 2021
Background Children with sickle cell anemia are at risk for stroke. Ischemic stroke risk can be identified among children ages 2–16 years with sickle cell anemia using transcranial Doppler ultrasound.
Shannon M. Phillips   +5 more
doaj   +1 more source

Accuracy of transcranial ultrasound and color duplex in diagnosis of neonatal brain pathologies [PDF]

open access: yesEgyptian Journal of Medical Research, 2020
The aim of the study: was to document the value of transcranial ultrasound and color duplex in detection of abnormalities in neonatal brain. This is cross sectional study was performed on 40 patients in neonates group with neurological sign or suspected ...
Sara Mohamed   +2 more
doaj   +1 more source

An Analysis of Resting-State Functional Transcranial Doppler Recordings from Middle Cerebral Arteries [PDF]

open access: yes, 2013
Functional transcrannial Doppler (fTCD) is used for monitoring the hemodynamics characteristics of major cerebral arteries. Its resting-state characteristics are known only when considering the maximal velocity corresponding to the highest Doppler shift (
A Lempel   +36 more
core   +3 more sources

Heparin and air filters reduce embolic events caused by intra-arterial cerebral angiography - A prospective, randomized trial [PDF]

open access: yes, 2004
Background-Intra-arterial cerebral angiography is associated with a low risk for neurological complications, but clinically silent ischemic events after angiography have been seen in a substantial number of patients.Methods and Results-In a prospective ...
Bartsch, AJ   +8 more
core   +1 more source

Comparison of Cerebral Micro-Embolization Detected by Transcranial Doppler Examination Between Radiofrequency Ablation and Pulsed Field Ablation for Atrial Fibrillation. [PDF]

open access: yesJ Cardiovasc Electrophysiol
Transcranial doppler monitoring of microembolic signals during atrial fibrillation ablation. ABSTRACT Background and Aims Pulsed Field Ablation (PFA) can establish pulmonary vein isolation via irreversible electroporation and is believed to reduce overall complications; however, periprocedural stroke has also been reported after PFA procedures ...
Schreiber T   +10 more
europepmc   +3 more sources

S-Nitrosoglutathione reduces asymptomatic embolization after carotid angioplasty [PDF]

open access: yes, 2002
Background: The major complication of carotid angioplasty is embolic stroke, which may occur after balloon inflation and deflation or in the early postintervention period.
Clifton, A.   +4 more
core   +1 more source

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