Abstract
This paper deals with classifying and discriminating normal from hypertrophic cardiomyopathy (HCM) using echocardiogram.
Normal myocardial fiber orientation has three-layered appearance, so we can observe the three-layered appearance on echocardiogram as the strength of ultrasonic echo efected by myocardial fiber orientation. But HCM myocardial fiber orientation is disturbed, so we can't observe the three-layered appearance.
Thus we consider that the three-layered appearance of myocardium effects echocardiogram. We classify and discriminate normal from HCM. Region of interest is setted on the interventricular septum of the echocardiogram apical four chamber view. Discriminant analysis is applied to the normalized echocardiogram using Thebycheff polynomial coefficient as discriminant vectors. Then, we obtain overall determination from local classified and discriminated results, as we use correlation ratio in order to avoid influence of degradation of echocardiogram. Finally, we show the usefullness of this method for some examples.
