Results 41 to 50 of about 11,817 (216)

Patent foramen ovale and thromboembolic complications [PDF]

open access: yes, 2010
The foramen ovale, an atrial septal defect which is essential in the fetal circulation, remains patent through adulthood in approximately 25% of the general population and so it represents the most common persistent abnormality of fetal origin.
Barbaro, G   +6 more
core   +1 more source

Data‐Driven Feedback Identifies Focused Ultrasound Exposure Regimens for Improved Nanotheranostic Targeting of the Brain

open access: yesAdvanced Science, EarlyView.
Machine learning models predict in real time the onset of harmful microbubble collapse during microbubble‐enhanced focused ultrasound (MB‐FUS) and enable dynamic adjustment of sonication to prevent cavitation‐induced damage. This predictive control expands the safe operating window for bloodbrain barrier opening, enhancing nanoparticle delivery and ...
Hohyun Lee   +17 more
wiley   +1 more source

Application of transcranial Doppler ultrasonography in cardiovascular surgery

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery
The neurological complications following cardiovascular surgery can significantly affect the prognosis of patients. As a convenient and non⁃invasive intraoperative neurological monitoring method, transcranial Doppler ultrasonography (TCD) can provide ...
ZHOU Ying⁃hua   +4 more
doaj   +1 more source

Functional Transcranial Doppler and Migraine Headache [PDF]

open access: yesTürk Nöroloji Dergisi, 2004
In recent years, a lot of studies have been performed in order to understand of migraine pathogenesis. All of these studies suggested that neuronal and vascular factors played important roles with a tight integration.
Nevzat Uzuner
doaj  

Pre‐operative transcranial Doppler ultrasound assessment of cerebral collateral circulation in children undergoing veno‐arterial extracorporeal membrane oxygenation or cardiac surgery

open access: yesJournal of Medical Radiation Sciences, EarlyView.
A pre‐cannulation survey of the circle of Willis (CoW) using transcranial Doppler (TCD) ultrasound was implemented to assess cerebral collateral circulation in children undergoing VA ECMO or cardiac surgery with cervical cannulation. The technique, in use since 2019, employs high‐end ultrasound platforms to assess brain morphology, haemorrhage and ...
Tristan Reddan   +3 more
wiley   +1 more source

A Micro-Embolic Energy Detector based on Sub-band Decomposition [PDF]

open access: yes, 2016
International audienceCerebrovascular Accidents can be caused by cerebral emboli blocking brain blood vessels. Analysis of transcranial Doppler signals practically aids the detection of emboli.
Almar, Marilys   +8 more
core   +3 more sources

Bilateral Transcranial Doppler Monitoring During Neonatal Cardiac Surgery; Guidance for Clinical and Scientific Use

open access: yesPediatric Anesthesia, EarlyView.
ABSTRACT Introduction Neonates undergoing cardiac surgery face a high risk of neurological injury and neurodevelopmental complications. Transcranial Doppler monitoring is used and validated in adults to measure cerebral blood flow and can provide valuable insights into cerebral perfusion in neonates.
B. V. Martherus   +11 more
wiley   +1 more source

Academic and cerebrovascular outcomes after neurodevelopmental screening in sickle cell disease: A longitudinal cohort study

open access: yesDevelopmental Medicine &Child Neurology, EarlyView.
Neurodevelopmental screening in toddlers or preschoolers with sickle cell disease (SCD) predicts future academic deficits. Screening sensitivity for future academic deficits is highest in preschoolers with SCD. Brief neurodevelopmental screening tools can identify high risk children for early intervention. Abstract Aim To assess the predictive validity
Sarah E. Bills   +5 more
wiley   +1 more source

Triptans and CGRP blockade - impact on the cranial vasculature [PDF]

open access: yes, 2017
The trigeminovascular system plays a key role in the pathophysiology of migraine. The activation of the trigeminovascular system causes release of various neurotransmitters and neuropeptides, including serotonin and calcitonin gene-related peptide ...
Alejandro Labastida-Ramírez   +9 more
core   +3 more sources

Role of transcranial Doppler ultrasonography in stroke [PDF]

open access: yesPostgraduate Medical Journal, 2007
AbstractTranscranial Doppler sonongraphy is a non-invasive, non-ionising, inexpensive, portable and safe technique that uses a pulsed Doppler transducer for assessment of intracerebral blood flow. This article deals with the principles and technique of transcranial Doppler sonography.
Sanjukta, Sarkar   +3 more
openaire   +2 more sources

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