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Many aspects of CSF dynamics are poorly understood due to the difficulties involved in quantification and visualization. In particular, there is debate surrounding the route of CSF drainage. Our aim was to quantify CSF flow, volume, and drainage route dynamics in vivo in young and aged spontaneously hypertensive rats (SHR) using a novel contrast-enhanced(More)
BACKGROUND Intracranial pressure elevation, peaking three to seven post-stroke is well recognized following large strokes. Data following small-moderate stroke are limited. Therapeutic hypothermia improves outcome after cardiac arrest, is strongly neuroprotective in experimental stroke, and is under clinical trial in stroke. Hypothermia lowers elevated(More)
Leptomeningeal collateral vessels, linking the 3 major arterial territories over the surface of the brain, have been recognized for >140 years. More widespread use of advanced clinical imaging in the past decade has led to increasing recognition of the key importance of collaterals in ischemic stroke outcome. However, recent studies from several groups(More)
Recent human imaging studies indicate that reduced blood flow through pial collateral vessels ('collateral failure') is associated with late infarct expansion despite stable arterial occlusion. The cause for 'collateral failure' is unknown. We recently showed that intracranial pressure (ICP) rises dramatically but transiently 24 hours after even minor(More)
We have recently shown that intracranial pressure (ICP) increases dramatically 24 h after minor intraluminal thread occlusion with reperfusion, independent of edema. Some of the largest ICP rises were observed in rats with the smallest final infarcts. A possible alternate mechanism for this ICP rise is an increase of cerebrospinal fluid (CSF) volume(More)
BACKGROUND Perfusion computed tomography is becoming more widely used as a clinical imaging tool to predict potentially salvageable tissue (ischemic penumbra) after ischemic stroke and guide reperfusion therapies. AIMS The study aims to determine whether there are important changes in perfusion computed tomography thresholds defining ischemic penumbra and(More)
Elevated intracranial pressure (ICP) is a significant problem in several forms of ischemic brain injury including stroke, traumatic brain injury and cardiac arrest. This elevation may result in further neurological injury, in the form of transtentorial herniation(1,2,3,4), midbrain compression, neurological deficit or increased cerebral infarct(2,4).(More)
Correction to: Journal of Cerebral Blood Flow & Metabolism (2015) 35, 592–600; doi:10.1038/jcbfm.2014.230; published online 17 December 2014. Following the publication of this article, the authors noticed the following error: The Results section of the article contains a typographical error under subheading 'Study III-Effect of Mild Hypothermia, Hematoxylin(More)
Early recanalization of occluded vessels in stroke is closely associated with improved clinical outcome. Microbubble-enhanced sonothrombolysis is a promising therapy to improve recanalization rates and reduce the time to recanalization. Testing any thrombolytic therapy requires a model of thromboembolic stroke, but to date these models have been highly(More)
Fetal femur length was measured with a linear-array, real-time ultrasound scanner in 145 uncomplicated gravid patients from 16 to 42 weeks' gestation. The data were analyzed by means of the method of least-squares linear regression. The results of this analysis generated the following equation: Y = -0.6809 + 0.2127 X (Y = femur length; X = gestational age.)(More)