Related Questions

Are abdominal ultrasounds just as accurate at dating pregnancies at 8 weeks as transvaginal?

Transvag better. Generally, transvag more accurate as you can get better views (usually). But if thin patient, experienced operator of the ultrasound and good views it can be very accurate. Best of luck. Dr R. Read more...

Are abdominal ultrasounds as accurate for dating as vaginal around 11 weeks of pregnancy? What is the margin of error for abdominal at this gestation?

Depends. If a woman is thin and the doctor has a good image of the fetus, then abdominal can be just as accurate as vaginal. Margin of error at this gestation is still +/- 5 days. After 14 weeks that number increases to +/- 10 days. Read more...
Yes, if... An abdominal ultrasound at 11 weeks is just as accurate for dating as vaginal (+\- 1 wk) if the image quality is good. You can see early fetal anatomy much better vaginally though. Read more...