Stable xenon versus radiolabeled microsphere cerebral blood flow measurements in baboons.
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چکیده
منابع مشابه
Stable xenon versus radiolabeled microsphere cerebral blood flow measurements in baboons.
Regional cerebral blood flow was simultaneously determined using the stable xenon computed tomographic and the radioactive microsphere techniques over a wide range of blood flow rates (less than 10-greater than 300 ml/100 g/min) in 12 baboons under conditions of normocapnia, hypocapnia, and hypercapnia. A total of 31 pairs of determinations were made. After anesthetic and surgical preparation o...
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The effects of inhaled stable xenon gas on cerebral blood flow were studied with 23 transcranial Doppler examinations performed in 13 normal volunteers while breathing, 25, 30, or 35% xenon for 5 min. Doppler velocities from the middle cerebral artery rose significantly during inhalation in 85% of subjects and 78% of studies and decreased significantly in 15% of subjects and 17% of studies. The...
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1. Dawson RC Ill , Tarr RW, Hecht ST, et al. Treatment of arteriovenous malformations of the brain with combined embolization and stereotactic radiosurgery: results after 1 and 2 years. AJNR 1990;11 :857-864 2. Fournier D, Terbrugge K, Rodesch G, Lasjaunias P. Revascularization of brain arteriovenous malformations after embolization with bucrylate. Neuroradiology 1990;32:497-501 3. Rao VRK, Man...
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Measurement of regional cerebral blood flow (rCBF) was performed in 6 healthy baboons during ventilation with 35% stable xenon in artificial air. rCBF was measured with the intraarterial xenon-133 method. EEG was recorded continuously. All CBF areas of interest over one hemisphere reacted in the same way. Mean flow increased during short-term exposure to stable xenon and decreased if stable xen...
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In this study, we compared the Xenon-133 (Xe) clearance method with the microsphere method in measurement of skeletal muscle and cerebral blood flow (CBF). Over a wide range of flows (1-47 ml/min x 100 g), we compared these two methods with direct measurements of venous outflow in the gracilis muscle. Regression equations relating the Xe (stochastic method) and microsphere measurements of flow ...
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ژورنال
عنوان ژورنال: Stroke
سال: 1989
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.20.12.1716