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Are Ultrasounds Accurate In Determining Gestational Age?
Question: hello I have a question about my pregnancy. At 6 weeks I got an ultrasound which measured accordingly. At 10 weeks I had an ultrasound which measured accordingly. At 12 weeks and 3 days I had an ultrasound that measured 13 weeks and 3 days. which is a day off. my first 2 ultrasounds were far more accurate than this one. Should I go based on my first ultrasounds??
Brief Answer:
Accuracy of ultrasound decreases with advancing gestation
Detailed Answer:
Hi dear,
I have gone through your question and understand your concerns.
As the gestation age advances, the accuracy of the ultrasound in predicting the gestation age decreases.
The error in calculating gestation age increases with advanced gestation.
So, accurate dating is done by early ultrasounds.
Hope you found the answer helpful.
Regards
Dr Deepti Verma
OBGYN
Accuracy of ultrasound decreases with advancing gestation
Detailed Answer:
Hi dear,
I have gone through your question and understand your concerns.
As the gestation age advances, the accuracy of the ultrasound in predicting the gestation age decreases.
The error in calculating gestation age increases with advanced gestation.
So, accurate dating is done by early ultrasounds.
Hope you found the answer helpful.
Regards
Dr Deepti Verma
OBGYN
Above answer was peer-reviewed by :
Dr. Chakravarthy Mazumdar
so my first ultrasounds are more accurate than the last one??
Brief Answer:
Yes
Detailed Answer:
Hi dear, yes, earlier ultrasounds are more accurate in determining gestational age.
Regards
Dr Deepti Verma
Yes
Detailed Answer:
Hi dear, yes, earlier ultrasounds are more accurate in determining gestational age.
Regards
Dr Deepti Verma
Above answer was peer-reviewed by :
Dr. Chakravarthy Mazumdar
Answered by
Dr. Deepti Verma
OBGYN, Maternal and Fetal Medicine
Practicing since :2009
Answered : 5064 Questions
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