Background The integrity of subcortical brain nuclei is associated with maintenance of regular cognitive performance levels and has been shown to be particularly affected by aging-related vascular pathology. This study aims to demonstrate applicability of high field strength magnetic resonance angiography at 7 Tesla (7T) for assessment of interindividual variation in subcortical vascularization...

BACKGROUND AND PURPOSE Iatrogenic dissections are an uncommon complication of cerebral angiography. We retrospectively reviewed 12 cases of arterial dissections complicating cerebral angiography and cerebrovascular interventions to evaluate the clinical course of these dissections. METHODS Cases from a large tertiary center performing a large number of neurovascular procedures were collected ...

BACKGROUND AND PURPOSE Impaired cerebrovascular reserve in chronic steno-occlusive disease has been shown to be associated with poor leptomeningeal collaterals (LMCs) on digital subtraction angiography and increased stroke risk. We examined the relationship between the degree of LMCs and the flow change with Diamox challenge measured using quantitative magnetic resonance angiography (QMRA). M...

2 From the American Society of Interventional and Therapeutic Neuroradiology (J.J.C.), Society of Interventional Radiology (D.S.), American Academy of Neurology (A.J.F.), American Association of Neurological Surgeons (W.R.S.), American Society of Neuroradiology (E.J.R.), AANS/CNS Cerebrovascular Section (P.E.S.), and Congress of Neurological Surgeons (M.H.). The complete list of authors and rev...

To the Editor: A 36‐year‐old man with intermittent migraine‐like headache with aura for 20 years underwent cerebrovascular computed tomography angiography (CTA) revealing very small calibers of bilateral internal carotid arteries (ICAs) in other hospital. He was admitted to our hospital for further examination several days later. He had no vascular risk factors, and no family history of atheros...

Magnetic resonance angiography (MRA) can provide significant additional information to complement the routine spin-echo MR examination of the brain." The idea of a combined study has gained favor because it provides a noninvasive alternative for the complete study of patients with suspected cerebrovascular disease. Because of the relatively short time of acquisition, MRA sequences can be easify...

From May, 1982 to May, 1983, 300 consecutive patients were examined by intravenous digital subtraction angiography (DSA) using the Philips DVI system, which had a 512 X 512 matrix for video-imaging. Of those patients, 160 were diagnosed as having ischemic cerebrovascular disease. Attention was focused on 17 cases who were treated by a extracranial-intracranial (EC-IC) bypass and 5 cases treated...

BACKGROUND AND PURPOSE The purpose of this study was to assess the feasibility of helical CT cerebrovascular imaging (CTCVI) in children and to make initial comparisons with MR angiography and digital subtraction angiography (DSA). METHODS Twenty-six patients, ages 3 days to 17 years, were examined with CTCVI. Patients were scanned with 1-mm collimation and 2:1 pitch 30 seconds after the init...

background: the presence of significant carotid stenosis in coronary artery bypass grafting (cabg) patients increases the risk of either transient ischemic attack or stroke. however, there is a dearth of data on the risk for patients with unilateral total occlusion of the carotid artery. we herein report our results of cardiac surgery in patients with unilateral total occlusion of the carotid a...

PURPOSE The objective of this study is to investigate the feasibility of detecting and quantifying 3D cerebrovascular wall motion from a single 3D rotational x-ray angiography (3DRA) acquisition within a clinically acceptable time and computing from the estimated motion field for the further biomechanical modeling of the cerebrovascular wall. METHODS The whole motion cycle of the cerebral vas...