While nonenhanced magnetic resonance (MR) angiographic methods have been available
since the earliest days of MR imaging, prolonged acquisition times and image artifacts have …

OBJECTIVE. The purpose of this study was to review and illustrate various clinical
applications of phase-contrast MRI. CONCLUSION. Cardiac MRI has emerged as a valuable …

Haemodynamic factors, in particular wall shear stresses (WSSs) may have significant impact
on growth and rupture of cerebral aneurysms. Without a means to measure WSS reliably in …

PURPOSE: To prospectively determine the effect of anatomic variations in the circle of Willis
on volume flow in the internal carotid arteries (ICAs) and basilar artery (BA). MATERIALS …

BACKGROUND AND PURPOSE: We sought to derive regional cerebral blood flow using
vessel flows from quantitative MR angiography (qMRA). MATERIALS AND METHODS: Flow …

BACKGROUND AND PURPOSE: Volume flow rates in the feeding arteries of the brain are
measured to evaluate blood flow dynamics in vascular disease. Although these flow values …

Background and Purpose—Symptomatic vertebrobasilar disease (VBD) carries a high risk of
recurrent stroke. We sought to determine whether a management algorithm consisting of …

We demonstrate a new concept for endovascular embolization of nonnecked fusiform
aneurysms. A device prototype consisting of a stent augmented with expandable foam, both …

Background: Anatomy of circle of Willis (CW) shows wide variation in different individuals,
population groups, and has vital clinical significance in causation and presentation of …

Objective Aimed to evaluate the different anatomical variations of the circle of Willis (COW)
and determined average vessels diameters in general Egyptian population. Patients and …