title: Myocardial motion analysis for determination of Tei-index of human heart.
abstract: The Tei index, an important indicator of heart function, lacks a direct method to compute because it is difficult to directly evaluate the isovolumic contraction time (ICT) and isovolumic relaxation time (IRT) from which the Tei index can be obtained. In this paper, based on the proposed method of accurately measuring the cardiac cycle physical phase, a direct method of calculating the Tei index is presented. The experiments based on real heart medical images show the effectiveness of this method. Moreover, a new method of calculating left ventricular wall motion amplitude is proposed and the experiments show its satisfactory performance.
authors.affiliation: College of Computer Science, Zhejiang University of Technology, 310023 Hangzhou, China. sy@ieee.org
authors.forename: Shengyong
authors.initials: S
authors.lastname: Chen
authors.forename: Jianhua
authors.initials: J
authors.lastname: Zhang
authors.forename: Houxiang
authors.initials: H
authors.lastname: Zhang
authors.forename: Qiu
authors.initials: Q
authors.lastname: Guan
authors.forename: Yahui
authors.initials: Y
authors.lastname: Du
authors.forename: Chunyan
authors.initials: C
authors.lastname: Yao
authors.forename: Jianwei
authors.initials: J
authors.lastname: Zhang
mesh_terms: D002318:Cardiovascular Diseases / Q000175:diagnosis / Q000503:physiopathology; D003935:Diagnostic Techniques, Cardiovascular / Q000295:instrumentation; D006305:Health Status Indicators; D006321:Heart / Q000033:anatomy & histology / Q000502:physiology* / Q000503:physiopathology; D006801:Humans; D021621:Imaging, Three-Dimensional; D008962:Models, Theoretical; D009038:Motion; D009068:Movement / Q000502:physiology; D009200:Myocardial Contraction / Q000502:physiology*; D009929:Organ Size; D016277:Ventricular Function, Left / Q000502:physiology