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Doctor insights on: Twin Ultrasound Pictures At 4 Weeks

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I was curious how far along i'd be if the ultrasound said 6.5 cm/1.3/27 Hz at the top of my picture. ?

I was curious how far along i'd be if the ultrasound said 6.5 cm/1.3/27 Hz at the top of my picture. ?

Sorry Mildred,: those numbers are most likely related to the ultrasound settings, (Depth/gain/frequency) Ask your OB or sonographer for your dates or measurements. In early pregnancy we measure crown-rump-length (CRL). Later, the fetal head diameter (biparietal diameter or BPD) from "ear-to-ear." Also look for abd. circumference (AC), head circum. (HC), or femur length (FL) since these are used more often. ...Read more

Dr. Michael Gabor
2,236 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 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. ...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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So I went to get an ultrasound and they told me it's a girl but I can't tell. I tried looking up other ultrasound pictures and I just can't tell.

So I went to get an ultrasound and they told me it's a girl but I can't tell. I tried looking up other ultrasound pictures and I just can't tell.

Hard to tell: The ultrasound is relatively reliable after 18-20 weeks when read by an experienced radiologist. In simple terms "the turtle must stick his head out" to see boy parts, and if they took enough time to evaluate the area it would be evident. I never bet the farm on an ultrasound. Although they are pretty good today I have seen them be wrong . ...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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What are 3d ultrasounds? What is the kind of ultrasound that creates 3d looking pictures? Is it an issue of level 2 ultrasound vs. Something else?

2D vs 3D: 3d ultrasound is a software upgrade to newer ultrasound machines. The software allows the ultrasound machine to create beautiful images. These additional images rarely improve the diagnostic accuracy if the ultrasound exam. A level 2 obstetrical ultrasound does not typically include 3d images. ...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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Why are there red areas on an abdomen ultrasound picture?

Why are there red areas on an abdomen ultrasound picture?

Doppler: When the tech turns on the doppler then movement towards the probe will usually show up as red and away will look blue. These can be reversed. ...Read more