The aim of this study was to prospectively evaluate diffuse intracranial vertebrobasilar artery
stenosis by ultrasonic examination with digital subtraction angiography as the reference …

Objectives Magnetic resonance angiography (MRA), three-dimensional computed
tomography angiography, and cerebral angiography may be used to assess intracranial …

Vertebrobasilar intracranial stenoses seem to carry a higher risk of brain stem ischemia than
proximal vertebral artery stenoses. Our aim was to assess the value of transcranial Doppler …

This study aimed to determine the optimal criteria for evaluating basilar artery stenosis (BAS)
by transcranial color-coded sonography (TCCS). A total of 403 cases with both TCCS and …

We prospectively compared the accuracies of conventional transcranial Doppler ultrasound
(TCD) and transcranial color-coded duplex sonography (TCCS) in the diagnosis of …

Objectives Vertebrobasilar stenosis is frequent in patients with posterior circulation stroke
and it increases risk of recurrence. We investigated feasibility of duplex ultrasonography …

Purpose The aim of this study was to evaluate the usefulness of vertebral artery (VA) pulsed
Doppler waveform changes in excluding basilar artery (BA) stenosis/occlusion. Methods …

Background: Vertebrobasilar (VB) strokes appear to have the same causes as carotid
strokes. Obstructive lesions of proximal vertebral arteries probably occur in about 30% of …

Objectives The proximal segment of the vertebral artery is a frequent site of obstructive
atherosclerosis. The purpose of this study was to determine Doppler criteria for identifying …

ObjectiveTo investigate the accuracy of hemodynamic parameters of diagnostic criteria for
basilar artery stenosis by transcranial Doppler (TCD) combined with transcranial color code …