The cascade concept for Doppler-cardiographic quantification.
On the basis of the presented original "cascade concept" from extrapolated formulas one could perform exactly the individual approximation for the left ventricular performance and for the diastolic cardiac function, respectively, according to the degree of absolute and procentual deviation from the given normal values excluding the influence of the body surface area (m2), the heart rate (min-1) and the life age (years). The Doppler-cardiographic indications for the left ventricular performance are the mitral filling index in the L/min/m2 and flow distance index in the cm/min/m2, the stroke volume in ml and flow volume in the L/min, the stroke distance in cm and the flow distance in the cm/min, the filling volume in ml/m2 and the distance index in the cm/m2, respectively.