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A member asked:

Whats the error in a first trimester (9 to 12 weeks ultrasound made by skilled doctor, 3 of up to 7 days? different awnsers by different doctors here

A doctor has provided 1 answer
Dr. Andrew Hoffman answered

Specializes in General Surgery

Hard to say: Different machines used. Different resolution of images. Different technicians also perform similar but not exactly the same test.

Answered 12/20/2013

4.7k views

Thank

Related Questions

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When a doctor says margin of error is 3-5 days in first trimester us are they talking about lmp, due date, or conception date?

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How accurate are first trimester ultrasounds? How accurate are ultrasounds done during the first trimester of pregnancy? I had one done and the doc told me that i'm 8 weeks pregnant, but how off could he be? Is there a week or 2 margin of error?

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