Results 51 to 60 of about 122,361 (215)
Arterial Steal to the Penumbra Area in Patients with Acute MCA Occlusion: A Quantitative Angiographic Analysis [PDF]
Purpose In acute middle cerebral artery (MCA) occlusion, collateral vessels provide retrograde supply to the occluded territory. We hypothesized that such collateral flow reduces perfusion of the non-occluded donor region (steal effect).
René van den Berg+7 more
doaj +1 more source
Resolution of Occlusive Carotid Artery Thrombus Treated with Anticoagulation as Demonstrated on Duplex Ultrasonography. [PDF]
BACKGROUND AND PURPOSE: While the majority of cerebral ischemic events due to carotid occlusive disease result from atherosclerotic plaque rupture, intraluminal carotid artery thrombus occasionally occurs in patients without preexisting carotid ...
Liang, John W.+2 more
core +2 more sources
Background: The recent introduction of near-infrared spectroscopy has enabled the monitoring of cerebral blood flow in real-time. Previous studies have shown that blood flow velocity is a predictor of cardiovascular disease. We hypothesized that cerebral
Hiroshi Irisawa+3 more
doaj +1 more source
Benefit from public unlabeled data: A Frangi filtering-based pretraining network for 3D cerebrovascular segmentation [PDF]
The precise cerebrovascular segmentation in time-of-flight magnetic resonance angiography (TOF-MRA) data is crucial for clinically computer-aided diagnosis. However, the sparse distribution of cerebrovascular structures in TOF-MRA results in an exceedingly high cost for manual data labeling.
arxiv
Respiratory challenge MRI: practical aspects [PDF]
Respiratory challenge MRI is the modification of arterial oxygen (PaO2) and/or carbon dioxide (PaCO2) concentration to induce a change in cerebral function or metabolism which is then measured by MRI.
Dani, Krishna A.+4 more
core +2 more sources
Vitamin D insufficiency has been associated with increased incidence and severity of cerebrovascular disorders. We analyzed the impact of impaired vitamin D signaling on the anatomical and functional aspects of cerebrovascular adaptation to unilateral ...
Éva Pál+8 more
doaj +1 more source
Analysis of the symmetric configuration of the circle of Willis in a series of autopsied corpses [PDF]
Introduction. The forming of the blood vessels network configuration at the base of the brain and interconnecting of blood vessels during the embryogenesis is directly related to the phylogenetic development of the brain and brain structures.
Stojanović Nebojša+6 more
doaj +1 more source
Early Cerebrovascular Autoregulation in Neonates with Congenital Heart Disease
Neonates with congenital heart disease (CHD) display delayed brain development, predisposing them to impaired cerebrovascular autoregulation (CAR) and ischemic brain injury.
Celina L. Brunsch+4 more
doaj +1 more source
The Relationship between Age and Affected Cerebral Vessels in Ischemic Stroke Patients
Aim: This study aimed to analyze the relationship between the age and the radiological findings in patients who admitted to University of Health Science Okmeydani Training and Research Hospital Emergency Department with cerebrovascular disease between ...
Mahmut Arda Çınarlık
doaj +1 more source
Exercise is increasingly recommended as an essential component of stroke rehabilitation, yet uncertainty remains with respect to its direct effect on the cerebral vasculature.
Andrew D. Robertson+11 more
doaj +1 more source