Assessment of venous capacitance. Radionuclide plethysmography: methodology and research applications
نویسندگان
چکیده
منابع مشابه
Assessment of the human splanchnic venous volume-pressure relation using radionuclide plethysmography. Effect of nitroglycerin.
BACKGROUND No method exists to assess human splanchnic venous function, the most important region in terms of vascular capacity. METHODS AND RESULTS We studied 25 stable patients without heart failure or hypertension to develop a method to assess the splanchnic venous volume-pressure (V-P) relation and to determine the effect of nitroglycerin (GTN). We used blood pool scintigraphy to assess c...
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Forearm venous occlusion plethysmography is widely used for the study of arterial function in vivo in humans. In their timely paper on the effect of the angiotensinconverting enzyme inhibitor lisinopril on endothelial function in hyperlipidaemic patients, Lee et al. [1] raised several points of methodology relating to the correct analysis and presentation of data. Blood flow was measured in bot...
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Radionuclide plethysmography (RPG) is a new technique that uses Tc-99m labelled red blood cells to ascertain changes in venous volumes by detecting the change in counts in response to the inflation and deflation of proximal thigh cuffs. Diagnosis of ileofemoral venous occlusion is possible using this technique, which also provides kinetic data of venous outflow. A range of normal values was def...
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The experimental evidence reported here supports the validity of venous occlusion plethysmog-raphy. 1 modified the technic of Brodie, 2 venous occlusion plethysmography has been widely employed to estimate blood flow in fingers, toes, and limbs. Several excellent comprehensive reviews of the technical pitfalls of the method are available. 3-4 The validity of the venous occlusion technic of plet...
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We validated a noninvasive radionuclide plethysmography technique to evaluate peripheral arterial blood flow during reactive hyperemia. This method, based on the measurement of blood volume variations during repetitive venous occlusions, was compared with strain-gauge venous impedance plethysmography. The technique uses 99mTc-labeled autologous red blood cells scintigraphy to determine the rate...
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ژورنال
عنوان ژورنال: British Journal of Clinical Pharmacology
سال: 2002
ISSN: 0306-5251,1365-2125
DOI: 10.1046/j.1365-2125.2002.t01-7-01689.x