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Doctor insights on: What Do The Colours Mean In An Ultrasound

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What does it mean if the ultrasound did not see anything in the sac?

What does it mean if the ultrasound did not see anything in the sac?

Blighted ovum.: That would depend on how advanced the pregnancy is. By 5 weeks there should be at least a yolk sac present in the gestational sac in the uterus. By six weeks a fetal pole should be seen and 85 to 90% of the time a fetal heart beat is noted by six weeks. If there is no fetal pole or yolk sac present by six weeks, it is unlikely that the pregnancy is normal. That is referred to as a blighted ovum. ...Read more

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Dr. Philip Chao
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Dr. Michael Gabor
1,983 doctors shared insights

Sonogram (Definition)

The sonogram is a test that looks at body organs with no radiation. It uses sound waves and can give us a 2 dimensional view of organs such as the kidney, liver, heart, and lungs. It can define spaces that are either solid or full of fluid. I can also guide large needles into an organ or near the spine, and can help define the area being cut open. Its a ...Read more


Dr. Philip Chao
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32 years in practice
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I was told my baby is on the high percentile at ultrasound. What does this mean?

I was told my baby is on the high percentile at ultrasound. What does this mean?

High percentile: for what specific characteristic? High percentile generally means that, compared to other babies of the same age, the baby is probably in the top 25% or so for the measured characteristic. For example, if it was weight, it would mean that the baby weighs more than 75% of all babies the same age. ...Read more

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The ultrasound report says "cbd is prominent,measuring approx 8.2 mm in size." What does this mean?

The ultrasound report says "cbd is prominent,measuring approx 8.2 mm in size." What does this mean?

The common bile duct: drains bile from the liver and gallbladder into the duodenum. The upper limit of normal for your age would be 5-6mm diameter. The duct can dilate if it is obstructed by a stone, mass, or stricture. The duct can also be passively dilated following gallbladder removal or other biliary surgery/procedures, in which case it is not due to obstruction but is the "new normal" for you. Talk to your doc. ...Read more

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What do the colors mean on an ultrasound?

What do the colors mean on an ultrasound?

See answer: Color doppler identifies moving velocities – usually hues of red in one direction with respect to the transducer , blue in the other – usually used for identifying blood vessel flow. ...Read more

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When an ultrasound scan measures you at 6 weeks, does it mean you are really at 4 weeks?

When an ultrasound scan measures you at 6 weeks, does it mean you are really at 4 weeks?

From conception.: Depends, how you calculate. The term is calculated from the first day of your period. This is traditionally so. So, what it means really? From the time of conception? Yes. ...Read more

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Dr. Philip Chao
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What does it mean to get an urgent ultrasound callback?

Urgent callback: Not sure exactly what this is in reference to, but in general it would mean that there is, or there is a possibility of, an acute or important finding that requires further characterization with ultrasound. ...Read more

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When i had a ultrasound done they said i was 5 weeks and 6 days does that mean i'm really 3 weeks and 6 days and then they add the 2 weeks?

Yes: I assume you are asking how long ago you conceived? In that case, you are correct. Routine sono dating is computed from the presumed first day of the last period. Actual conception usually occurs 2 weeks later. ...Read more

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What do the colors on an ultrasound mean?

Blood flow: They hsow the blood flow through whatever organ you are looking at. ...Read more

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Dr. Philip Chao
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