Detection of Bronchial Blood Flow from Earpiece Dye-dilution Curve
نویسندگان
چکیده
منابع مشابه
Detection of bronchial blood flow from earpiece dye-dilution curve.
In an attempt to detect an increased bronchial blood flow in man from the earpiece dye-dilution curve, the reliability of three indexes was investigated by comparing them with the values of bronchial blood flow measured from the left atrial dye-dilution curve following dye injection into the aortic root. The first index is obtained from the Cp method, in which the ratio of the peak concentratio...
متن کاملA sensitive and stable earpiece for dye dilution curves.
The measurement of cardiac output, from the study of the concentration of a circulating dye against time, has in the past been most commonly carried out using whole blood cuvettes (Fried-At a wavelength of 640 millimicrons the density of arterial blood flowing at a constant rate between the photo-cells and light source is continuously recorded, and the curve calibrated for dye concentration by ...
متن کاملA simplified method for calculation of the leftto-right shunt from a single earpiece dye-dilution curve.
In a preceding paper of ours,1 it has been reported that the estimation of shunt magnitudes can be done by using a single earpiece dye-dilution curve with some correction of the build-up time in infants and children with the left-to-right shunt. The present report describes a new, simplified method devised for the calcula tion of the shunt values using a single earpiece dye-dilution curve, beca...
متن کاملDetermination of relative changes in cardiac output from noncalibrated earpiece dye-dilution curves.
Coomassie Blue dye and the photoelectric earpiece" make it comparatively simple to obtain successive dye-dilution curves without arterial puncture. If the response of the recording system is linear to blood dye concentration and the vascular content of the ear is constant, it should be possible to measure relative changes in cardiac output without calibrating the corves. The purpose of this pap...
متن کاملStudies of coronary blood flow by multiple dye dilution curves.
The indicator-dilution technique has recently been applied to the study of the coronary circulation. One of the methods which have been proposed is the estimation of coronary blood flow from dilution curves sampled from the right ventricle after the injection of radio-iodinated human serum albumin into the left ventricle or into a catheter "wedged" in a branch of the pulmonary artery (1). Anoth...
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ژورنال
عنوان ژورنال: The Tohoku Journal of Experimental Medicine
سال: 1970
ISSN: 0040-8727,1349-3329
DOI: 10.1620/tjem.100.127