Ultrasound Services

Prenatal Care

During the course of your pregnancy, you doctor will most likely order one or more ultrasound examinations. Ob-Gyne Associates of Lake Forest offers on-site ultrasound performed by Souma Diagnostics. To see if Souma Diagnostics accepts your insurance, please call 773.735.2110.

Week 6-11
This ultrasound is usually done to confirm your due date. It is the most accurate dating method we have.

Week 12-13: Nuchal Translucency (NT)
The NT usn is an optional test that can be used to determine if the baby is at risk for Down’s syndrome, trisomy 13 or 18, or other physical abnormalities. If it is abnormal you may consider doing other tests that will be more specific.

Week 20-22
All pregnancies have a scan at this time to check for malformations and appropriate fetal growth. If you are a high risk pregnancy you will be sent to a high risk or maternal-fetal medicine specialist to have a level 2 (or targeted fetal) ultrasound.

Week 20-Delivery
Many patients need more ultrasounds occurring during these weeks but there will be a medical indication for these. Your doctor will tell you when and if you need one.

3D/4D Imaging

Traditional two-dimensional ultrasounds can provide a lot of information about a baby, but the grainy black-and-white images don’t offer much of a view. Technological advances have allowed for the creation of 3D and 4D ultrasound so impending parents can truly get a detailed first look at their baby. Strictly elective, a 3D and 4D ultrasound does not replace a diagnostic ultrasound to evaluate the gestational age and anatomy of the fetus.

Ultrasound in 3D/4D is just as safe as traditional 2D ultrasound; in fact, it employs the exact same sound waves to obtain images. However, the more advanced devices process the data in a more sophisticated way so each image contains more layers and provides a much fuller, more complete view of the baby.

A 3D and 4D ultrasound procedure is typically performed any time after 25 weeks of pregnancy. By that point, the baby’s features are distinct. Ideally, it should be done before the final few weeks of pregnancy so the baby has room to turn, which will provide you with a better variety of images and is especially important if the baby is facing away from the ultrasound device.
Please contact our office at 847.234.3250 to inquire more information or to schedule your 3D/4D Imaging Ultrasound. For billing and insurance questions, please contact Souma Diagnostics at 773.735.2110.


Vaginal Ultrasound
A special vaginal wand is used to get the best picture of your uterus shape with internal contours visible and of your ovaries. You doctor may have requested this scan as part of evaluating abnormal bleeding, pelvic pain, infertility or a pelvic mass.

Abdominal/Pelvic Ultrasound
There may be gynecologic indication to add an abdominal view to the vaginal ultrasound, or sometimes in place of a vaginal ultrasound. This may require a full bladder.

This is a special vaginal probe ultrasound done while placing a small amount of fluid within the uterine cavity, thru your cavity. It can allow a better evaluation of possible fibroids or polyps within the uterine cavity.

Common Questions & Answers

Will I have an ultrasound every visit during pregnancy?

Ultrasounds are performed for certain medical indications and are not routinely done at every visit. Most insurance plans will pay for one ultrasound during your pregnancy, and will require preauthorization for all other exams.

Do I need a full bladder for my ultrasound exam?

You do not need a full bladder EXCEPT for the 12 week NT optional usn.

May I video record/sound record my ultrasound exam?

You will not be able to get a video or take a video recording of your ultrasound. Usually the technician can give you a picture to take home. A 3D picture may be available for purchase depending on the baby’s size position and time allowed for the appointment.

Do you have 3D/4D Imaging available?


Am I allowed to have family or friends in the room during my ultrasound?

During a routine, doctor-ordered ultrasound, you may have one guest.

Could I have an ultrasound to see the sex of my baby?

The gender of your baby is visible at your 20-21 week exam but the baby must cooperate. Please tell the technician if you prefer to not know the gender.

To learn more about the Ultrasound Services that we offer, or to schedule an appointment, please call 847-234-3250.