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Evaluation of Pulsed Doppler-Versus Tissue Doppler-Derived Tei Index of Right and Left Ventricle in Fetuses

AUTHORS

Hamid Amoozgar 1 , * , Manouchehr Soltani 1 , Mohammad Borzoee 1 , Gholamhossein Ajami 1 , sirous cheriki 1

AUTHORS INFORMATION

1 Division of Pediatric Cardiology, Department of Pediatrics,Shiraz University of Medical Sciences, Shiraz, Iran

How to Cite: Amoozgar H , Soltani M , Borzoee M , Ajami G , cheriki S. Evaluation of Pulsed Doppler-Versus Tissue Doppler-Derived Tei Index of Right and Left Ventricle in Fetuses, Int Cardio Res J. 2017 ; 5(4):e11215.

ARTICLE INFORMATION

International Cardiovascular Research Journal: 5 (4); e11215
Published Online: December 31, 2011
Article Type: Research Article
Received: February 27, 2017
Accepted: April 22, 2011

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Abstract

 

Background: The myocardial performance index (MPI), also known as the Tei index, was introduced by Tei et al. to evaluate cardiac function in adults with dilated cardiomyopathy. This index is defined as the sum of isovolumic contraction time (ICT) and isovolumic relaxation time (IRT), divided by ejection time (ET).

Objectives: To determine the correlation between pulsed Doppler (PD)- and tissue Doppler imaging (TDI)-derived Tei indices in fetuses.

Patients and Methods: Right and left ventricle PD and TDI echocardiographic data were obtained from 59 fetuses (11 pregnant women who were positive for anti-SSA-Ro or anti-SSB-La antibodies, 18 women who were referred due to dysrhythmia, and 30 women who had normal clinical findings).

Results: Mean fetal gestational age was 27 ± 6.4 weeks. Mean PD Tei index of the mitral and tricuspid valve was 0.58 ± 0.05 and 0.53 ± 0.08, respectively. Mean TDI indices for the mitral and tricuspid valve were 0.56 ± 0.09 and 0.55 ± 0.08, respectively. There were no significant differences between mitral and tricuspid PD- and TDI-derived Tei indices (P = 0.87, P= 0.21), but the Bland-Altman diagrams showed no fine agreement between the indices (the mean difference ± 1 standard deviation of the right ventricular PD- and TDI-derived Tei indices was 0.24 ± 0.02 and 0.29 ± 0.04 for the left ventricle). There were no significant differences in PD- and TDI-derived Tei indexes between groups of evaluated fetuses (Mitral valve: PD-Tei P=0.69, TDI-Tei P=0.49; Tricuspid valve: PD-Tei P=0.41, TDI-Tei P=0.36).

Conclusions: Although the mean values of the two indices did not differ significantly, the TDI-derived and PD-derived Tei indices did not have fine agreement.

Keywords

Heart Function Tests Polarography Elasticity Imaging Techniques

© 0, Shiraz University of Medical Sciences.

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