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- W3032173203 abstract "Objective To measure mitral annual displacement (MAD) by M-mode echocardiography in normal second and third trimester fetuses,and assess relationships between MAD and gestational age and routine echocardiographic parameters for evaluation of left ventricular function.Methods One hundred fifty-five normal fetuses from 19 to 38 weeks of gestation were recruited in the study.MVD and tricuspid annual displacement (TAD) were measured.Early diastolic inflow velocities (E) of the atrioventricular valves were assessed by pulsed-wave Doppler(PW),and early diastolic velocities (Em) of the mitral annular were estimated by pulsed-wave tissue Doppler imaging (TDI).The ratio of E/Em was calculated.Results In normal fetuses,the MAD was (7.05 ± 1.17) mm.There was significant positive correlation between the fetal MAD and advancing gestational age ( r =0.82,P ＜0.01 ),and between MAD and E,A,Em,Am or Sm ( r =0.25,0.24,0.32,0.29 and 0.40 respectively,P ＜0.01).There was no correlation between fetal MAD and E/A,E/Em,LVEF or LVFS.The left MAD was significantly lower than the right TAD ( P ＜0.01 ).Conclusions MAD of fetuses from 19 to 38 weeks of gestation can be quantitatively measured by Mmode echocardiogram.The measurement of MAD provides a reliable quantitative standard to estimate long axis ventricular function of fetuses,which may be clinically useful in prenatal detecting early cardiac failure.Key words: Echocardiography; Fetus; Ventricular function, left" @default.
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- W3032173203 date "2012-08-25" @default.
- W3032173203 modified "2023-09-23" @default.
- W3032173203 title "Quantitative study of left ventricular function in the normal fetuses by mitral annular displacement" @default.
- W3032173203 doi "https://doi.org/10.3760/cma.j.issn.1004-4477.2012.08.001" @default.
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