Normogram of fetal middle cerebral artery peak systolic velocity at 20-37 weeks of gestation at Srinagarind Hospital.

ABSTRACT

OBJECTIVE: To establish normal references of fetal middle cerebral artery peak systolic velocity (MCA PSV) at 20 to 37 weeks of gestation at Srinagarind Hospital. MATERIAL AND METHOD: A descriptive cross-sectional study was performed Normal fetuses at 20 to 37 weeks of gestation were studied by gray scale ultrasonography initially and then Doppler of MCA PSV. RESULTS: At least 18 pregnant women of each gestational age with an uncomplicated singleton were enrolled The MCA PSV was increased as gestational age advanced from 24.34 cm/sec (SD 3.91) at 20 weeks to 59.04 cm/sec (SD 10.80) at 37 weeks. CONCLUSION: A normogram of fetal MCA PSV at 20 to 37 weeks of gestation at Srinagarind hospital was generated.