Abstract
The clinical application of ultrasound to the examination of the heart has presently found a wide application: the one- and two-dimensional echocardiography are diagnostic tools of utmost importance for diagnosis of cardiac disease and assessment of left ventricular function. Left ventricular internal diameter, left ventricular shortening of the minor axis, left ventricular volume and systolic ejection fraction are echocardiographic parameters for assessing left ventricular function. There have been several papers [1–3] comparing these parameters to angiocardiography for validation of the echocardiographic method in determining left ventricular function. There are several problems in measuring left ventricular function by one- or two-dimensional echocardiography such as underestimation of the true internal diameter, rotational movements of the heart or geometric factors for evaluation of left ventricular volume and ejection fraction. The purpose of the present study is to evaluate the accuracy of one- and two-dimensional echocardiography for quantitative assessment of left ventricular size and function, and to discuss probable factors causing misinterpretation or under- or overestimation of left ventricular myocardial function.
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