Mechanical Evaluation of Cardiac Contractility in Heart with CABG Surgery

Abstract

It is considered that to evaluate the cardiac contractility from a mechanical point of view is useful for a quantitative evaluation of the extent of heart disease or the effect of treatment. From the above-mentioned point of view, we have tried to investigate mechanically the cardiac contractility by using the magnetic resonance tagging technique, which is a noninvasive measurement technique of regional wall motion. In the present paper, the deformation of the left ventricular wall in normal humans and patients with CABG surgery is analyzed, and the cardiac contractility in the ischemic heart disease is discussed.