PURPOSE: To determine the normal values and effects of age and sex on total cerebral
blood flow (CBF) as measured with ungated two-dimensional phase-contrast magnetic …

Background and Purpose—The circle of Willis (CW) is considered an important collateral
pathway in maintaining adequate cerebral blood flow in patients with internal carotid artery (ICA…

In a fetal-type posterior circle of Willis (FTP) there is an embryonic derivation of the posterior
cerebral artery (PCA) from the internal carotid artery (ICA). Besides the fact that a larger area …

Background There are limited data from randomized trials regarding whether volume-based,
low-dose computed tomographic (CT) screening can reduce lung-cancer mortality among …

Background The use of multidetector computed tomography (CT) in lung-cancer screening
trials involving subjects with an increased risk of lung cancer has highlighted the problem for …

Background: Little is known about the efficacy and safety of renal artery stenting in patients
with atherosclerotic renal artery stenosis (ARAS) and impaired renal function. Objective: To …

Background The International Carotid Stenting Study (ICSS) of stenting and endarterectomy
for symptomatic carotid stenosis found a higher incidence of stroke within 30 days of …

Purpose: To determine, in a meta-analysis, the diagnostic performance of contrast material–enhanced
magnetic resonance (MR) imaging in patients with breast lesions. Materials and …

Background The main challenge in CT screening for lung cancer is the high prevalence of
pulmonary nodules and the relatively low incidence of lung cancer. Management protocols …

A method to obtain the optimal selection criteria, taking into account available resources
and capacity and the impact on power, is presented for the Dutch‐Belgian randomised lung …