Value of echocardiography in detection of coronary sinus in fetus / 中华超声影像学杂志

ABSTRACT

Objective To detect the normal values of the fetal coronary sinus(CS) in length(L) .diameter (D) and diameter-to-length ratio(D/L) using fetal echocardiography and assess the clinical significance of dilated CS. Methods Fetal echocardiography were performed in 218 normal fetuses from the 20th to the 40th week of gestation. The L,D and D/L of CS were measured and the standard values of the normal fetal CS were established. A second group of 8 fetuses with dilated CS were assessed compared to the values of normal fetuses. Results The L and D of normal fetal CS correlated well with the gestational weeks (Linear regression equation is L= - 0. 94 + 0. 4 weeks, r = 0. 661, P<0. 0001 ;D= - 0. 07 + 0. 08 weeks, r = 0. 433, P <0. 0001). And the D/L did not vary significantly throughout pregnancy(D/L = 0. 21 0.04, r = 0. 115, P = 0.08). Therefore, the D value of normal fetal CS is less than 3.9 mm and D/L is less than 0.3 throughout pregnancy (20-40 gestational weeks). Conclusions The values of D and D/L of fetal CS in prenatal echocardiography might be useful and important parameters for fetal cardiac or extracardiac anomaly.