Case Control Study
Copyright ©The Author(s) 2020.
World J Clin Cases. Dec 6, 2020; 8(23): 5866-5875
Published online Dec 6, 2020. doi: 10.12998/wjcc.v8.i23.5866
Figure 3
Figure 3 Schematic diagram and tissue Doppler Tei index of the foetal right ventricular measurement. A: Tissue Doppler Tei index measurement model of foetal right ventricular, isovolumic contraction time (ICT), ejection time (ET) and isovolumic relaxation time (IRT); B: Doppler Tei index measurement of foetal right heart tissue: Tei index = (isovolumic contraction time + isovolumic relaxation time)/ejection time. LV: Left ventricular.