Quantitation of Bidirectional Shunt from A Single Dye-Dilution Curve

A 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...

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...

Earpiece dye-dilution technics for estimation of the left-to-right shunt in infants and children.

The infants and children subjected to this study consisted of 21 cases with ventricular septal defect, 9 cases with atrial septal defect, 3 cases with patent ductus arteriosus, one case with partial anomalous pulmonary venous return and 3 cases with the innocent murmurs (cf. Tables 1 and 2). The right-heart catheterization was performed in all the cases according to the conventional Fick proced...

Quantitation of valvular regurgitation from multiple indicator-dilution curves.

normal subjects and iii patients with ilomiregurgitanit heart disease yielded a similar contour. This suggested that in the albseimce of reour-itation the pallameters of the distal (arterial) curve ca.n be predicted fromm the proximlmai ( pulm1nomary artery) culve. The distortion of the arterial curve byregurgitationi can timerefore l)e comnpared withi time undistorted )ulmmonmary lartery curve...

Thrombotest dilution curve.