612 Myocardial Performance Index (TEI Index) in Term Neonates-Preliminary Study
نویسندگان
چکیده
منابع مشابه
The 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 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 کاملRelationship Between Tei Index and PEP-Derived Myocardial Performance Index in Sinus Rhythm
The goal of this study was to evaluate the preejection time (PEP)-derived myocardial performance index (MPI) in hypertensive (HT) patients with sinus rhythm and its relationship to the classic Tei index. One hundred five patients were enrolled in the study (65 HT and 40 control subjects). The mean age of all patients was 50.5 ± 15 years and 60% were female. Echocardiography was performed on all...
متن کاملMRI 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 کاملDoppler-Derived Myocardial Performance Index in Healthy Children in Shiraz
Background: Assessment of myocardial function is essential in heart disease, but in regard to systolic and diastolic functions such evaluation has limitation. Ejection fraction is difficult to assess in abnormally-shaped ventricles, and diastolic inflow velocity pattern may be fused because of tachycardia. Objective: A myocardial performance index (MPI) or Tei index has been developed for adult...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 2010
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-201011001-00612