Cerebral blood flow measured by NMR indicator dilution in cats.
نویسندگان
چکیده
منابع مشابه
Cerebral blood flow measured by NMR indicator dilution in cats.
We developed techniques to assess the utility of a nuclear magnetic resonance (NMR) indicator for cerebral blood flow studies in cats, using Freon-22 for the first candidate. A PIN-diode-switched NMR experiment allowed the acquisition of an arterial as well as a cerebral fluorine-19 signal proportional to concentration vs. time in a 1.89 T magnet. Mean +/- SD blood:brain partition coefficients ...
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The objective was to compare blood flow to the hindquarters of steers measured by transit time ultrasound with blood flow determined by indicator (p-aminohippurate) dilution. Five Hereford steers had ultrasonic flow probes on the abdominal aorta and catheters in the abdominal aorta and inferior vena cava inserted through both sets of circumflex iliac vessels. Indicator was infused continuously ...
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BACKGROUND Currently, quantitative measurement of global cerebral blood flow (CBF) at bedside is not widely performed. The aim of the present study was to evaluate a newly developed method for bedside measurement of CBF based on thermodilution in a clinical setting. METHODS The investigation was performed in 14 anesthetized patients before coronary bypass surgery. CBF was altered by hypocapni...
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چکیده ندارد.
15 صفحه اولAcute toxicity of a nuclear magnetic resonance cerebral blood flow indicator in cats.
We studied trifluoromethane as a potential gaseous indicator in nuclear magnetic resonance measurements of cerebral blood flow. We considered the effects of trifluoromethane on cerebral blood flow in 17 cats and on the electroencephalogram and electrocardiogram in nine cats and compared these with the effects of the more toxic compound chlorodifluoromethane in five cats. Inhaled at 60%, trifluo...
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ژورنال
عنوان ژورنال: Stroke
سال: 1989
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.20.2.259