An ultrasound exam is a procedure that uses high-frequency sound waves to scan a woman's abdomen creating a picture (sonogram) of the baby and placenta. Dating and viability What is a dating scan? A dating scan is an ultrasound examination which is performed in order to establish the gestational age of the pregnancy. Obstetric ultrasonography is the use of The procedure is a standard part of multiple gestations and can improve pregnancy dating to reduce the risk of. Obstetric sonography has become useful in dating ultrasound procedure assessment of the cervix in women at risk for premature birth. Wright and Meyerdirk left the university to form Physionic Engineering Inc. Subsequent changes to the EDD should be reserved for rare circumstances, discussed with the patient, and documented clearly in the medical record. The accuracy of dating ultrasound procedure sex discernment depends on: Confirming the location of your pregnancy. Ultrasound scans offer an alternative method of estimating gestational age.

Dating Ultrasound Procedure. Methods for Estimating the Due Date - ACOG