Interpretation of the radiocardiograms by determining the mean-transit time of the indicator

A new method for the interpretation of the radiocardiographic (RCG) data is proposed. As distinct from the widely used method developed by Donato et al. based on the exponential extrapolation of the terminal zones of the RCG peaks and the calculation of the mean time of the indication general circulation in the body, this one is based on the approximation of both RCG peaks by γ-image function, measurement of the indicator maximUm level in the field of interest of the vena cava superior and calculation of the time indices that characterize the mean-transit time of radioactivity through the right cardiac regions and through the heart and lupgs in general. On eXamination of practically healthy persons and 62 patients with ischemic heart disease 10 different RCG time indices were identified. The correlation matrix of the interrelationships of these indices and the matrix of the coefficients of respective regression equations were calculated