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Doctor insights on: Ultrasound Pictures Of Hidden Twins

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Dr. Michael Gabor
2,263 Doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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Can a twin be missed at 12 week ultrasound?

Can a twin be missed at 12 week ultrasound?

Yes: Mistakes happen. However, it is very unlikely. If you are concerned, speak with your doctor. A second ultrasound should confirm the initial findings.

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Just curious, is an ultrasound the only way to determine if your having twins?

Just curious, is an ultrasound the only way to determine if your having twins?

Yes: Ultrasound is the only reliable and safe way. Other then waiting for delivery. While Xray would show it carries unnecessary risk.

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Is it possible that the ultrasound technician could not see a triplet hiding behind twins at 11 weeks 3 days?

Is it possible that the ultrasound technician could not see a triplet hiding behind twins at 11 weeks 3 days?

Yes: Depending on how thorough the study & the training of the tech, missing a fetus is possible. Regular US is a 2 dimensional study and you only see what your probe lights up.

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At 12 weeks scan the ultrasound technician saw that the baby has penetrated the empty sac of the vanishing twin. How can this be?

At 12 weeks scan the ultrasound technician saw that the baby has penetrated the empty sac of the vanishing twin. How can this be?

Clarification: I would schedule a visit with your doctor to ask for clarification on the sonogram findings. This is such a specific question it requires someone to view the images of the sonogram to be able to interpret the results

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Had ultrasound at 6. 2 weeks one had heartbeat 122. Dr said was a twin other sac in ultrasound will I expel it empty sac or does it go away?

Had ultrasound at 6. 2 weeks one had heartbeat 122. Dr said was a twin other sac in ultrasound will I expel it empty sac or does it go away?

Dissolves: Commonly twin gestation turns into single one due to loss of one fetus. As long as this happens early, there is usually no consequences for the remaining fetus. The other one is reabsorbed. Usually this happens for a good reason, and may mean one is not healthy. You could not have prevented it or caused it either. Get followup U/S to make sure you baby is growing well inside you. Best wishes!!

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Is a high def ultrasound common with twins?

????: Don't quite know what you mean. All our fetal sonos are done with the highest possible definition. There are a few more things we evaluate with twins such as the number of placentas and the sac anatomy. Or as we are fond of saying, "twice the work for the same fee! ".

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Is my ultrasound of twins? I was 6 weeks 6days..

Can not: See the ultrasound. Your OB will be able to tell you

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Can both of the twins be seen in detail with an ultrasound?

Can both of the twins be seen in detail with an ultrasound?

Usually: Depending on the position of the twins, the sonographer it is usually, but not always, possible to image both twins in detail and determine gender, whether they are monochorionic or dichorinonic, and to visualize their umbilical cords. However, this depends on their current gestational age. Optimal images may take more than one visit for an ultrasonogram.

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What should I do if my ultrasound didn't detect one of my twins?

What should I do if my ultrasound didn't detect one of my twins?

Common occurence: Early on in pregnancy it is not uncommon to lose on of the twins. If this happens early then chances are you will continue to carry the other baby without any problems.

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What is the definition or description of: ultrasound to evaluate twins?

Prenatal study: This imaging study is ordered by the doctor to have an idea of the fetus's anatomy, size, gestational age, position of the placenta, amount of amniotic fluid and overall well-being. In the case of twins, you can also compare their sizes and growth. Assessing two babies in utero by ultrasound can be more technically difficult than assessing one because one twin can hide parts of the other.

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Saw twins on my ultrasound but one is bigger than the other. Is that a problem?

Saw twins on my ultrasound but one is bigger than the other. Is that a problem?

Depends: In general it is common for one twin to be slightly larger than the other. In some rare cases it can be a problem (usually with identical not fraternal twin) usually serial sonograms will be done to evaluate the growth of both twins. Ask your md what the size difference means in your case.

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How common is it to miss twins on a 7 week ultrasound?

How common is it to miss twins on a 7 week ultrasound?

Very common: Finding twins at this stage of pregnancy is dependent on finding two gestational sacs that are very small.

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14 days past IUI 239 beta and 16 days past iui. Do my betas suggest twins? Ultrasound not until 06/19

14 days past IUI 239 beta and 16 days past iui. Do my betas suggest twins? Ultrasound not until 06/19

Not necessarily: Everyone's beta rises differently. While this HCG level could be consistent with both a singleton or twin gestation.

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What is the lowest number of days to be able to identify twins on an ultrasound AFTER CONCEPTION date, thankyou?

What is the lowest number of days to be able to identify twins on an ultrasound AFTER CONCEPTION date, thankyou?

4-5 weeks, depends.: It depends on what type of twins (monozygotic / identical or dizygotic / fraternal) & where the implantation occurs, so there's no hard-and-fast rule. I've heard of twins being seen at 5 weeks based on two different heart beats heard on US. It can be seen as soon as 4 weeks if they are separated far enough for US to see. Either way, don't fret; accept congratulations & best wishes to you & partner

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At 12 weeks the ultrasound technician saw that my fetus has penetrated the empty sac of the vanishing twin. How could this be?

At 12 weeks the ultrasound technician saw that my fetus has penetrated the empty sac of the vanishing twin. How could this be?

Good question: I am not sure what the ultrasound technician may have meant if he/she really stated the surviving fetus has penetrated the empty sac of the vanishing twin. If he/she is implying that the membranes of the vanishing twin are somehow wrapping around the surviving fetus, then this is a situation that you would want to have clarified by a Maternal Fetal Medicine specialist. Discuss a referral.

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