Systems for Quantitative Analysis of Left Ventricular Wall Motion
Tennant and Wiggers  were perhaps the first to demonstrate the phenomenon of segmental left ventricular dysfunction when, in 1935, they ligated a coronary artery in a dog and at once observed paradoxic motion of the underlying myocardium. Subsequently, Harrison  recognized disordered patterns of contraction in the kinetocardiograms of patients with ischemic heart disease and applied the term “asynergy,” and, later, “dyssynergy,”  to this condition. More recently, Herman et al. , in an elegant quantitative ventriculographic study of patients with coronary artery disease, introduced the now familiar terms “hypokinesis,” “akinesis,” and “dyskinesis” for description of left ventricular contraction abnormalities.
KeywordsAortic Valve Wall Motion Left Ventricular Wall Motion Leave Anterior Oblique Segmental Wall Motion
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