BACKGROUND AND PURPOSE: Several recent studies have shown that sonographic
contrast agents may affect transcranial Doppler evaluation of the arterial peak systolic …

BACKGROUND AND PURPOSE: The angle of insonation cannot be assessed with
conventional transcranial Doppler sonography. Findings in healthy control subjects suggest …

Although serial transcranial Doppler measurements of blood flow velocity are of
considerable clinical utility, their use assumes that the velocity signals are stable and …

Transcranial Dopplersonography (TCD) is a useful noninvasive technique for the
measurement of intracranial arterial blood flow velocity. The present study evaluated the …

Background and Purpose To validate the reliability of transcranial Doppler sonography
velocity measurements in clinical settings, assessment of the reproducibility of repeated …

Objective. The authors evaluate blood flow velocities in the medial cerebral artery (MCA)
and the basilar artery using magnetic resonance (MR) phase contrast technique in …

The purpose of this study was to evaluate the use of velocity criteria applied to transcranial
Doppler (TCD) signals in the detection of stenosis of the middle cerebral (MCA), distal …

Measurement of intracranial arterial blood flow velocity is a new technique with potentially a
number of very useful applications. This study validates the technique by comparing it to …

Transcranial Doppler ultrasonography (TCD) allows evaluation of blood‐flow velocity in
intracranial arteries detection and monitoring of vasospasm in patients with subarachnoid …

Transcranial Doppler (TCD) units measure blood velocity in the middle cerebral artery
(MCA) and are used to examine the effects of pharmacological agents. The units actually …