Using reflected sound waves, ultrasound allows us to see into the body and create amazing images that help to diagnose, to reassure and to bond with your baby.  

Some Frequent Questions about Ultrasound:

What is "4D"/"4D Ultrasound"?

"4D" is shorthand for "four-dimensional" - the fourth dimension being time.  It's the difference between a still photograph and a video.

As far as ultrasound is concerned, 4D ultrasound is the latest technology and is exclusive to GE.  Dr. Prior uses the GE Voluson 730 Expert, which is the top of the line GE ultrasound machine available today.

You can see a virtual demonstration of 4D ultrasound. 

Does "4D" replace regular ultrasound for every pregnancy?

No.  Regular 2d scanning remains the best way to see the heart, kidneys, and many other internal organs. However, as you can see by even looking at the still 3D images on this page, 3D/4D scanning allows for better views of the surface including face and hands.  It also allows an incredible bonding experience for parents and their unborn baby.

Is 4D covered by insurance?

Like many new medical breakthroughs, 4D is frequently not covered by insurance.  If there is a specific concern or question, it may be. Limited 4D imaging is done with most ultrasounds at Dr. Prior's office. If you would like a longer more detailed session, we have a range of 4D ultrasound packages.

I'm seeing another doctor for my pregnancy, can I get a 4D ultrasound?

If your doctor does not have this technology, we are happy to assist you in obtaining a 4D scan of your baby.  Generally most obstetricians will perform a standard 2d scan and we can see you later for the 3D/4D portion as you desire. 

What is the best time to have 4D ultrasound?

Different things can be seen at different times during pregnancy.  In general most diagnostic 2D ultrasound is being done at 16-20 weeks.  From 20-40 weeks beautiful surface images of the baby are possible, including faces, hands and feet.  Mothers seem to enjoy the 3D images best between 25 and 35 weeks.  As the baby gets closer to term, they get more body fat producing pudgy baby images, but they are also increasingly crowded and getting a good image becomes more difficult.

What determines the quality of the images?

Many factors are involved in obtaining a clear image.  The equipment we use is state-of-the-art so there is no limit there.  There are factors out of our control, however, that may decrease the quality of the image.  These include:

• Fetal position: some babies love having their picture taken and pose constantly.  Others are quite shy and turn their back to us.  Some will rest on the placenta or hide their face with their hands.  Often the perfect face shot is not possible.  Mothers still enjoy the fun of watching their baby move in 4D.
• Maternal tissue:  The more tissue the sound has to pass through the less the detail able to be seen.  For this reason, our fuller figured patients often should have their ultrasound later in pregnancy.  We cannot control the size of our patients nor the laws of physics!
• Fetal activity: It is wonderful to watch the baby in motion, but the best still 3D images come when baby is still.  Whatever mode your baby is in, we'll get the best images possible but just as you can't keep them from jumping on the bed later, we can't keep them from moving during their ultrasound.
• Gestational development:  Early in the pregnancy we have a better chance to see the whole baby, but less fat is present so they don't look as "cute."  Later on, better images can be seen but it is more likely baby will not be in a good position.

Can I bring family or friends?

Yes.  We are a family centered practice.  Although small children who might be distracting are best left at home, we have a supplemental video screen to allow mother and guests to more easily see and participate in the ultrasound experience.

Can you tell me if it is a boy or girl?

In most cases we can determine the gender, depending on baby's position.  If you do not want to know, that is ok.  We'll be sure to keep your surprise!  If you have completed a 4D package and we are unable to visualize gender, we will offer a no-charge quick view for gender later in pregnancy.  Although Dr. Prior has more than a 99% accuracy rate, we can not guarantee the accuracy of gender determination.

Do I need a full bladder?

Please do not make yourself uncomfortable.  A full bladder is not necessary.  We recommend you drink plenty of water before your ultrasound, but you may empty your bladder as you wish before we start.

Is it safe?

Ultrasound has been in use for 50 years and no studies have ever found a harmful effect to mothers or babies.  The American Institute of Ultrasound Medicine states: "No confirmed biological effects on patients or instrument operators caused by exposure intensities typical of present diagnostic instruments have ever been reported."