Determination of the Center of Left Ventricule and Border Detection on Short Axis Image of Echocardiogram
Left ventricular thickness, diameter and their time variance play important role in an assessment of a cardiac function using echocardiography. In order to measure left ventricular wall thickness and diameter from echocardiogram, it is required to determine a center of left ventricle and to detect a border which is a boundary between cardiac muscle and blood.On the other hand, the center of left ventricule is regarded as the varycenter of the border curve of left ventricule, but the varycenter is able to be determined after detection of the border curve.In this paper, we propose the new method to detect the border curve and determine the center of left ventricle as the varycenter, at the same time, shifting the origin of coordinate system.Furthermore, this method realizes about twice high-speed compared with a conventional method.