Two minute slope inhalation technique for cerebral blood flow measurement in man. 1. Method.
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چکیده
منابع مشابه
Two minute slope inhalation technique for cerebral blood flow measurement in man. 1. Method.
The two minute slope method of measuring cerebral blood flow (CBF) by inhalation of 133Xe is described. It requires the subject to remain still for only two minutes and is thus applicable to a wide variety of patients and to investigations involving brief physiological stimuli. The influence of extracerebral blood flow on CBF calculated by this method has been studied. Results from the two minu...
متن کاملTwo minute slope inhalation technique for cerebral blood flow measurement in man. 2. Clinical appraisal.
The two minute slope technique for measuring CBF was devised primarily to study the response of the cerebral circulation to physiological stimuli. In this paper, measurements of the precision of the technique when applied to various groups of people are described, and measurements on normal subjects of the global and regional CBF changes in response to hyperventilation and hypercapnia are prese...
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The brain has a high blood flow to meet its high obligatory requirement for glucose as a metabolic fuel. Indeed, glucose requirement and blood flow are directly coupled so that the increased metabolic rate during enhanced functional activity of a particular cortical area is associated with increased blood flow. Here a brief review will be given of the most important methods that can be used for...
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Measurements of cerebral blood flow (CBF) were performed using the microsphere technique in non-human primates (baboons) to assess the effect of non-radioactive xenon gas inhalation on CBF. Blood flows in small tissue volumes (approximately 1 cm3) were directly measured before and during the inhalation of xenon/oxygen gas mixtures. The results of these studies demonstrated that when inhaled in ...
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A clinical method for noninvasive measurement of regional cerebral blood flow (rCBF) and blood volume (rCBV) is described, based on Obrist's 10 minute, desaturation method after 1 minute inhalation of Xe. Sixteen collimated probes are placed over both hemispheres and brain stem-cerebellar regions. End-tidal Xe curves are used for correction of recirculation. KEV discriminators are set to record...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1976
ISSN: 0022-3050
DOI: 10.1136/jnnp.39.2.141