BACKGROUND There are contradictory reports concerning the validity of transcranial sonography (TCD and TCCS) for examinations of the basilar artery. Here we investigated sensitivity and specificity of transcranial sonography for the detection of basilar artery stenosis and in-stent-restenosis compared to cerebral angiography. METHODS We analyzed data of 104 examinations of the basilar artery....

Aim: Transcranial​ ​Doppler​ ​(TCD)​ is a widely used method for the evaluation of vertebrobasilar system. There not neither consensus nor significant number publications about normal spectral Doppler waveform and resistance index (RI), peak systolic velocity (PSV), end diastolic (EDV) values basilar artery (BA). We aim to define PSV, EDV, RI BA via TCD in healthy infants. 
 Material Metho...

Abstract Aim This study aims to review the literature regarding utility and accuracy of transcranial toppler (TCD) ultrasound in diagnosis cerebral vasospasm (CV) following aneurysmal subarachnoid haemorrhage (aSAH). Method A systematic was conducted PRISMA guidelines. Pubmed Google Scholar online databases were searched using designated MeSH search terms: “subarachnoid haemorrhage” AND “aneury...

Transcranial Doppler (TCD) is a noninvasive ultrasound (US) study used to measure cerebral blood flow velocity (CBF-V) in the major intracranial arteries. It involves use of low-frequency (≤2 MHz) US waves to insonate the basal cerebral arteries through relatively thin bone windows. TCD allows dynamic monitoring of CBF-V and vessel pulsatility, with a high temporal resolution. It is relatively ...

Individuals with severe impairments may use brain-computer interface (BCI) technologies in order to interact with their external environment. One non-invasive brain-monitoring technology which may be suitable for this purpose is transcranial Doppler ultrasound (TCD). Previous research has shown that TCD is useful in detecting changes in cerebral blood flow velocities after the performance of co...

BACKGROUND To determine the effect of vasovagally mediated syncope on the cerebral circulation, transcranial Doppler sonography was used to assess changes in cerebral blood flow velocity during head-upright tilt-induced syncope. METHODS AND RESULTS Thirty patients (17 men and 13 women; mean age, 43 +/- 22 years) with recurrent unexplained syncope were evaluated by use of an upright tilt-table...