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Multidimensional echocardiography. An appraisal of its clinical usefulness.

Mulliscan is a new concept in echocardiography providing instantaneous cross-sections of the heart in motion without distortion. The examination technique and the present display and recording methods are described and discussed in some detail. Multiscan provides important anatomical and functional information in the non-invasive diagnosis of congenital malformations and of valvular heart disease. The size, shape, and overall function of the left ventricle can be assessed. Localized disorders of wall motion are also detected, making the instrument usefulfor the study andfollowup ofpatients with coronary artery disease. Quantitative measurements of cardiac dimensions and calculation of left ventricular volumes using the area-length method can be obtained. From the results presented in this paper one may conclude that the concept of Multi-element echocardiography is a valuable extension of the now widely accepted single element technique and offers vast possibilities for the screening, study, andfollow-up of patients with cardiac disease.