Title :
Computational assessment of spatio-temporal heterogeneity of human left ventricular contractions in normal and ischemic heart
Author :
Chumarnaya, T. ; Solovyova, O. ; Sukhareva, S.V. ; Markhasin, V.S.
Author_Institution :
Inst. of Immunology & Physiol., Russian Acad. of Sci., Russia
Abstract :
Two-dimensional echocardiographic images of left ventricle are analyzed to characterize quantitatively spatio-temporal heterogeneity of regional wall motion in norm and ischemic heart disease. A negative correlation between the regional heterogeneity and the global ejection fraction is revealed. Regional heterogeneity is shown to increase significantly in patients with ischemic heart disease compared to normal subjects. A special contribution of the apex is identified, and a diagnostic index of regional wall motion abnormality is suggested.
Keywords :
diseases; echocardiography; image motion analysis; medical image processing; spatiotemporal phenomena; diagnostic index; global ejection fraction; human left ventricular contractions; ischemic heart disease; normal heart; regional heterogeneity; regional wall motion abnormality; spatio-temporal heterogeneity; Cardiac disease; Echocardiography; Electronic switching systems; Heart; Humans; Image analysis; Image motion analysis; Image segmentation; Motion analysis; Myocardium;
Conference_Titel :
Computers in Cardiology, 2009
Conference_Location :
Park City, UT
Print_ISBN :
978-1-4244-7281-9
Electronic_ISBN :
0276-6547
