title: Doppler blood flow in obstetrics.
abstract: OBJECTIVE
  Our review on Doppler ultrasound in obstetrics aims to identify which vessels have a definite clinical role in obstetrics.
  
  
  RESULTS
  The use of Doppler ultrasonography in the diagnosis and management of the intrauterine growth-restricted fetus improves the perinatal morbidity and mortality. However, the timing of delivery of the intrauterine growth-restricted fetus, based on Doppler ultrasonography, remains the subject of investigation. Robust data exist on the management of fetuses at risk for anemia because of red cell alloimmunization by using the middle cerebral artery peak systolic velocity. Appropriate training for the correct assessment of this vessel is fundamental. Doppler ultrasonography of the umbilical artery is useful in the counseling of patients with pregnancies complicated by twin-twin transfusion syndrome.
  
  
  CONCLUSIONS
  Recently, Doppler ultrasonography has been shown to be helpful to the obstetricians in the diagnosis of the IUGR fetus, diagnosis of fetal anemia, twin-twin transfusion syndrome. These are the basis for timing the delivery of the IUGR fetus. However, more data are necessary. Doppler ultrasonography should be used to assess the fetal ductus arteriosus in patients treated with prostaglandin inhibitors. Doppler is also an important part of the fetal echocardiogram.
authors.affiliation: Obstetrics and Gynecology, University of Cincinnati, Ohio 45267, USA.
authors.forename: Laura
authors.initials: L
authors.lastname: Detti
authors.forename: Masashi
authors.initials: M
authors.lastname: Akiyama
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Mari
mesh_terms: D004899:Erythroblastosis, Fetal / Q000000981:diagnostic imaging; D005260:Female; D005317:Fetal Growth Retardation / Q000000981:diagnostic imaging; D006801:Humans; D011247:Pregnancy; D012039:Regional Blood Flow; D018608:Ultrasonography, Doppler; D016216:Ultrasonography, Prenatal; D014599:Uterus / Q000098:blood supply / Q000000981:diagnostic imaging