MRI assessment of myocardial global function by tei index - a comparison to echocardiographic tei index
نویسندگان
چکیده
منابع مشابه
MRI assessment of myocardial global function by tei index - a comparison to echocardiographic tei index
Introduction The Tei index is an echocardiographic measure of global ventricular function, calculated as ((isovolumic contraction time) + (isovolumic relaxation time)) / (ejection time). This may be calculated as ((time of atrioventricular valve closure) (time of arterial valve closure)) / (time of arterial valve closure). Used as a measure of systolic as well as diastolic function, the Tei ind...
متن کاملMyocardial performance index (Tei index): evaluating its application to myocardial infarction.
impairment of left ventricular (LV) systolic and diastolic dysfunction to various degrees. These functions are energetically and tightly coupled: 1) at the cellular level, since adenosine triphosphate is a substance essential for both active contraction and relaxation; 2) at the myocardial level, because regional wall motion asynchrony influences global LV diastolic function (contraction-relaxa...
متن کاملThe Tei index of myocardial performance: applications in cardiology.
of classical echocardiographic indexes for the estimation of systolic and diastolic left ventricular (LV) function. The ejection fraction (EF, an index of systolic function) and LV volumes are subject to large errors when the ellipsoid shape of the heart becomes spherical. Age, rhythm and conduction disturbances, and changes in loading all affect the Doppler signal of transmitral flow, which is...
متن کامل[Influence of preload reduction on Tei index and other Doppler echocardiographic parameters of left ventricular function].
OBJECTIVE To assess the influence of preload reduction by hemodialysis on Doppler Tei Index of myocardial performance and other parameters of cardiac function. METHODS The Tei index and left ventricular (LV) systolic and diastolic function parameters were estimated, before and after a single hemodialysis session. Only subjects who were in sinus rhythm, without history of coronary artery disea...
متن کاملLeft ventricular Tei index in athletes.
I read with great interest the recently published study by Stoylen et al. in the December, 2003, issue of European Journal of Echocardiography. The investigators reported that all intervals of the heart cycle and myocardial performance index (Tei) of left ventricle (LV) were shortened during incremental exercise. We also found that Tei index in athletes was significantly lower than that in the ...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2011
ISSN: 1532-429X
DOI: 10.1186/1532-429x-13-s1-p333