Normogram of Fetal Middle Cerebral Artery Peak Systolic Velocity at 20-37 Weeks of Gestation at Srinagarind Hospital
Piyamas Saksiriwuttho MD*, Chatuporn Duangkum MD*, Thawalwong Ratanasiri MD*, Ratana Komwilaisak MD*
Affiliation : * Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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.
Keywords : Peak systolic velocity, Middle cerebral artery, Fetal anemia, Doppler ultrasound
