Comparative study of myocardium tissue based on gradient features

The analysis of echocardiography texture images related to muscle fibre orientation is a modality to characterize the myocardial pathology. In this article, our goal is to explain the potential clinical applicability of the proposed method in processing echocardiography images. The difference of gradient texture features between apical two-chamber (A2C) and parasternal short axis (SAX) views in basal inferior zone was investigated. Additionally the standard deviation of the magnitude and the direction gradient of the edges across the end-systole and end-diastole frames were computed. Myocardium tissue was estimated analysing 104 ROIs (regions of interest) not less than 900-1000 pixel. The ROIs were automatically cropped from each echocardiography of 26 healthy patients in basal inferior zone. The same tissue has been viewed from different angles and in order to determine the standard error of the mean between classes A2C and SAX the t-test method was applied. A test system for an automatic comparison of data was implemented.