ULTRASOUND INTRODUCTION
EXAM PREP
FAQs
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For additional information on 3-D OB Ultrasounds click here |
ULTRASOUND INTRODUCTION
An ultrasound is a safe, painless diagnostic procedure that uses very high-frequency sound waves to produce a remarkably clear image of the internal structure of your body. Ultrasound exams are typically quicker and less expensive than CT scans, and because they do not involve the use of x-rays, they are completely safe to use even on pregnant women. Your physician will determine the most appropriate diagnostic test given your individual situation.
During your ultrasound examination, you will lie on a table while the sonographer applies gel to the specific area being examined. A probe is then gently rolled over your lubricated skin. The real-time image created is viewed on a nearby monitor.
Still frame photos and/or live images are recorded during the procedure. The exam usually takes from 15 to 45 minutes.
Fetal ultrasound:
Fetal ultrasound is used to evaluate the age of a fetus as well as assess its growth during pregnancy. Ultrasound is also used to screen for any anatomic abnormalities. Baby pictures will be provided to patients following the examination.
We also offer separate, non diagnostic 3-D/4-D Ultrasound sessions. (Click here for 3-D Ultrasound Information)
Abdominal ultrasound: Used to assess the liver, gallbladder, kidneys, pancreas, and spleen. Ultrasound is often ordered to look for gallstones. The abdominal vessels will also be assessed for abnormalities including the aorta, IVC, hepatic arteries and veins, and renal arteries and vein.
Pelvic ultrasound: In women, pelvic ultrasound can evaluate the uterus and ovaries. Frequently, an endovaginal study is performed in which a special transducer with a cover is inserted into the vagina by the patient. This exam is performed in conjunction with a pelvic ultrasound to provide very high resolution images of the uterus and ovaries.
Thyroid ultrasound: Assesses the size of the thyroid gland and looks for any abnormalities of the thyroid and surrounding areas.
Vascular ultrasound: Used to assess arteries and veins. Doppler and color flow ultrasound are used in addition to standard ultrasound imaging. Ultrasound is used to evaluate for blood clots, most commonly found in the leg veins. Carotid artery ultrasound imaging may be performed to evaluate for narrowing of these arteries. Ultrasound can also be used to evaluate the blood vessels in the abdomen.
Breast ultrasound:Ultrasound of the breast is usually used to further evaluate an abnormality found in a another study (usually a mammogram). Patients under the age of 30 may have an ultrasound to evaluate an abnormality found upon examination. Your physician will determine the most appropriate diagnostic test given your individual situation.
EXAM PREPARATION
Different exams require very different preparations. Please refer to the list below and follow the instructions closely as the preparation can affect the results of your exam. Failure to do so may cause a delay and possibly require rescheduling your exam. If you do not find your exam listed below or have any further questions, please do not hesitate to contact Nebraska Health Imaging prior to your exam.
Fetal Ultrasound:
Less than 14 weeks: Full bladder. Drink 32-48 ounces of water finishing 1hour prior to your examination. Do not empty your bladder.
Greater than 14 weeks: Full bladder with 16 ounces of water 30 minutes prior to your examination. Do not empty your bladder.
Abdominal Ultrasound: Nothing to eat or drink after midnight the night prior to your exam. If you need to take medication, go ahead and take it with as little water as possible.
Pelvic Ultrasound: Full bladder. Drink 32 ounces of water finishing 1 hour prior to your examination. Do not empty your bladder.
Thyroid Ultrasound: No preparation necessary. You may choose to wear a button down shirt or a low neck shirt so you do not have to change your clothes.
Vascular Ultrasound: No preparation necessary.
Breast Ultrasound: No preparation necessary.
FREQUENTLY ASKED QUESTIONS
Why do I have to have a full bladder for a pelvic or fetal ultrasound?
A distended bladder acts as a "window" through which the sound waves travel and allows the sonographer to visualize the pelvic organs. A distended bladder also displaces bowel, which can prevent visualization of the pelvic organs.
Why do I have to fast for an abdominal ultrasound?
Fasting reduces the amount of air in the stomach and intestines which can interfere with visualization of underlying abdominal structures of interest. It also ensures that the gallbladder is fully distended so it can be thoroughly evaluated.
Can you tell the gender of my baby?
If the baby is big enough and it is a good position to see the genital area, the baby's sex can be determined. The sex can be determined as early as 16 weeks, though it is ideally seen between 18-20 weeks.
Does a breast ultrasound show more than a mammogram?
Mammography is still considered the "Gold Standard" for breast imaging. Ultrasound is typically used to further evaluate an abnormality seen on a mammogram, as well as lumps that the patient or physician has felt.
Does Nebraska Health Imaging perform OB exams in 3-D and 4-D?
Yes. Most OB exams are performed in traditional 2-D. When appropriate, we perform exams in 3-D and live 4-D! (Click here for 3-D Ultrasound Information)
When are you open for Ultrasound exams?
We understand you busy schedule and offer these convenient hours (additional hours often available with advance notice)
Monday - Friday 7:30 - 6:00
Saturday 7:30-12:30
