Article

Tissue Doppler Image-Derived Myocardial Performance(Tei Index) as a Simple Assessment of Global Cardiac Function in Adults

Korean Circulation Journal 01/2005; 35(4). DOI: 10.4070/kcj.2005.35.4.315

ABSTRACT Background and Objectives:A new Doppler time index of myocardial performance (the Tei index) has been studied as a useful predictor of global cardiac function. It is defined as (a-b)/b, where a is the interval between the end and onset of the mitral inflow, and b is the ejection time of the left ventricular outflow. However, the Doppler time intervals are not measured on the same cardiac cycle. Subjects and Methods:We compared the tissue Doppler imaging (TDI)-derived Tei index, which can be measured on the same cardiac cycle, with the conventional Tei index as measured by pulsed wave Doppler method, in healthy persons (n=44), in patients having diastolic dysfunction with an E/E' ratio >10 (DD, n=56), and in patients having systolic dysfunction with an ejection fraction

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Available from: kwon-sam Kim, Jan 20, 2015
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