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Doctor insights on: Ultrasound Pictures Of Hidden Twins

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Dr. Michael Gabor
2,275 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. ...Read more

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Just curious, is an ultrasound the only way to determine if you're having twins?

Just curious, is an ultrasound the only way to determine if you're having twins?

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

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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. ...Read more

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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 ...Read more

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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!! ...Read more

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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!". ...Read more

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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 ...Read more

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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. ...Read more

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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. ...Read more

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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. ...Read more

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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. ...Read more

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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. ...Read more

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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. ...Read more

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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 ...Read more

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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. ...Read more

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At 4 weeks 4 days my hCG was 3, 900. 40 hours later it was 7, 261. My ultrasound isn't until tomorrow, I'll be 5w4d. Is that high & could it be twins?

May be: There is considerable variability in HCG levels. Ultrasound exam would be better at detecting twins. See this site and discuss the matter with your doctor.

http://www.americanpregnancy.org/duringpregnancy/hcglevels.html. ...Read more

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I got the ultrasound done the doctor said it's a twin but I am worried later on if it become multiple?

I got the ultrasound done the doctor said it's a twin but I am worried later on if it become multiple?

Trust: Doctors are usually are very good to determining how your pregnancy is going. They utilize ultrasound, fetal heart turns and many other clinical signs. Talk to your physician and get reassurance. Good luck with your pregnancy. ...Read more

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What do you suggest if my child brought home an ultrasound with 2 gestational sac diameter measurements does that mean its twins?

What do you suggest if my child brought home an ultrasound with 2 gestational sac diameter measurements does that mean its twins?

Not necessarily.: The gestational sac should be measured in three different planes to determine mean sac diameter, so there may be multiple pictures of the same gestational sac with different measurements. ...Read more

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I had a random ultrasound this past Saturday, found out I am around 6/7 weeks with twins. My LMP was end of august sometime. When did I conceive?

Conception: Using a Pregnancy Wheel: probable ovulation Sept 20 and implantation of embryo on Sept 28th. Fertilization of egg occurred between those days. Try this online calculator: http://www.medcalc.com/pregnancy.html ...Read more

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My hCG level at 6w was 62, 895 and at 6w5d 120, 896. Is this possibly twins? The 6w ultrasound showed 1 for sure and a light spot in the opp. Corner.

My hCG level at 6w was 62, 895 and at 6w5d 120, 896.  Is this possibly twins?  The 6w ultrasound showed 1 for sure and a light spot in the opp. Corner.

May be: Hcg levels have a wide variation in normal pregnancy. In general levels are higher in twin pregnancies. See this site for more info.
http://americanpregnancy.org/duringpregnancy/hcglevels.html. ...Read more