Background and Purpose Power Doppler imaging (PDI) is a new sonographic technique
that has recently been introduced for vascular application. Since the technical principles of …

Background and Purpose Power Doppler imaging (PDI) is a new ultrasound technique that,
in contrast to color Doppler flow imaging (CDFI), generates intravascular color signals from …

Background and Purpose An understanding of carotid atherosclerosis is important to further
our knowledge regarding the etiology of cerebral ischemia, and therefore it is necessary to …

BACKGROUND AND PURPOSE: Duplex sonography is an effective tool for evaluating
internal carotid artery (ICA) stenosis, and power Doppler imaging has improved its value in …

Purpose Visualization of carotid artery stenosis is important to improve our understanding of
the etiology of ischemic stroke. Two sonographic methods are available for visualizing …

Objective: We investigated the accuracy of color-flow Doppler (CD) scanning, power
Doppler (PD) scanning, and peak systolic Doppler frequency shift (PSF) in assessment of …

PURPOSE: To evaluate power Doppler imaging as a possible screening examination for
carotid artery stenosis. MATERIALS AND METHODS: In the principal pilot study, a …

Purpose Digital subtraction angiography (DSA) is the gold standard in the diagnosis of
carotid artery stenosis, but it has a relatively high complication rate. We evaluated the …

BACKGROUND AND PURPOSE: Doppler sonography of the carotid arteries is routinely
performed before catheter angiography, and its results may bias the subsequent …

PURPOSE: To examine the variability of Doppler measurements along the extracranial
courses of the nondiseased common carotid artery (CCA) and internal carotid artery (ICA) …