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| A quantitative study of annular plane systolic excursion difference in cases of heart function of#br#
normal fetuses in second- and third-trimester |
| LI Ting, GAO Lin, YAO Lin, WANG Shan-shan |
| Department of Ultrasound, The Second Affiliated Hospital of Dalian Medical University, Dalian Liaoning 116021, China |
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Abstract Objective: To analyze the value of mitral and tricuspid annular plane systolic excursion difference(APSED) of normal fetuses in the second- and third-trimester in case of the study of fetal heart function. Methods: APSED with the peak velocity of early diastole phase(E, E’) and late diastole phase(A, A’) at mitral and tricuspid valve, the stroke volume(SV) and ejection fraction(EF) of both left and right ventricular were quantitatively analyzed. Results: There was a significant difference between TAPSE and MAPSE in different gestational weeks(P<0.05). The APSED of normal fetuses was growing with the increase of gestational weeks, and showed significant positive correlations with gestational week. There was also a positive correlation between APSED and E, E’, A, A’, LSV, RSV, but there was no significant correlation between APSED and LVEF, RVEF. Conclusions: The use of APSED to evaluate fetal heart function has a good correlation with traditional evaluation parameters, and can reflect the difference of the longitudinal motion of fetal left and right ventricles quantitatively. It can be used as a new index to assess the fetal cardiac function.
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Received: 19 December 2016
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2017, Vol. 28 
