Accuracy of Sonographic Fetal Biometry Measurements

This study looks at the relationship between ultrasound measurements of the baby taken just prior to birth and actual measurements of the baby taken shortly after birth. This may help us decide how much doctors and other health care providers can rely on ultrasound measurements when making decisions about the health care of a mother and baby.

Who is in Charge of This Research?

The doctor in charge of this research is Bryan Oshiro, MD.

How Can You be Involved?

You may be eligible to participate in this study if you meet all of the following criteria:

  • You are 18 years of age or older
  • You are carrying a single baby (no twins, triplets, etc.)
  • You are 37 weeks pregnant or greater
  • Your baby is normlly developed and has no health concerns immediately after birth
  • You are scheduled to undergo a cesarean birth

If you participate, we will ask for your permission to perform an ultrasound just prior to birth to obtain measurements of your baby, and then to take measurements of your baby within a few hours after birth. We will also ask for permission to take information from your and your baby’s medical records.

Who Should You Contact if You Would Like for Information?

Please contact Irene Cheng, MD, at for more information. Please note that research personnel can only provide medical advice if he or she is also your health care provider.  If you have questions or concerns about your pregnancy, medical condition or health care, please contact your primary health care provider.