Assessment of Cerebral Blood Flow by Means of Blood-Flow-Volume Measurement
نویسندگان
چکیده
منابع مشابه
Assessment of cerebral blood flow by means of blood-flow-volume measurement.
of Blood-Flow-Volume Measurement To the Editor: With great interest we read in Stroke that a working group around Soustiel1 compared cerebral blood flow (CBF) as measured by xenon clearance technique with blood-flow-volume (BFV) measurements from the internal carotid artery (ICA). Soustiel et al found well-correlated data, ie, correlation coefficients 0.75, in a total of 77 measurements. As a c...
متن کاملAssessment of Cerebral Blood Flow by Means of Blood-Flow-Volume Measurement in the Internal Carotid Artery
Background and Purpose—We sought to evaluate a new, angle-independent ultrasonic device for assessment of blood flow volume (BFV) in the internal carotid artery (ICA). Methods—Nineteen patients and 4 healthy volunteers were enrolled in a comparative study conducted in the Care Unit of the Division of Neurosurgery at UCLA Medical Center. All patients had been admitted because of severe brain inj...
متن کاملAssessment of cerebral blood flow by means of blood-flow-volume measurement in the internal carotid artery: comparative study with a 133xenon clearance technique.
BACKGROUND AND PURPOSE We sought to evaluate a new, angle-independent ultrasonic device for assessment of blood flow volume (BFV) in the internal carotid artery (ICA). METHODS Nineteen patients and 4 healthy volunteers were enrolled in a comparative study conducted in the Care Unit of the Division of Neurosurgery at UCLA Medical Center. All patients had been admitted because of severe brain i...
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Introduction Hyperoxic contrast-enhanced MRI, performed by increasing the inspired fraction of oxygen (FiO2>0.21), have been shown in numerous studies to produce positive contrast enhancement in T2-weighted images based on the blood oxygenation-dependent (BOLD) effect [1],[2],[3]. It has been long thought that hyperoxia substantially alters the hemodynamics of the brain, confounding attempts to...
متن کاملMeasurement of Flow and Volume of Blood
One of the primary measurements the physician would like to acquire from a patient is that of the concentration of O2 and other nutrients in the cells. Such quantities are normally so difficult to measure that the doctor is forced to accept the second-class measurements of blood flow and changes in blood volume, which usually correlate with concentration of nutrients. If blood flow is difficult...
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ژورنال
عنوان ژورنال: Stroke
سال: 2003
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.0000102418.50115.05