[Reliability of an echocardiographic evaluation of the left ventricular pumping function in ischemic heart disease]. / Nadezhdnost na ekhokardiografskata otsenka na pompenata funktsiia na liavata kamera pri iskhemichna bolest na surtseto.

Almost simultaneous angiographic and echocardiographic determination of the pump indices of left ventricle was performed to 38 male patients, aged 34 to 58. A special computer was used for the processing of the data. The echocardiographic indices were calculated by three formulae: cube, Forteen and Teiholz . Coefficients of correlation were derived between the two methods, confirming a relatively high reliability of echocardiography in the evaluation of left ventricular pump function, particularly if the calculations were selectively performed according to one of the three formulae, depending on the value of diastolic measure of left ventricle.