Automated Breast Ultrasound
If you have dense breast tissue, you may need additional imaging beyond a standard mammogram to get the clearest view of your breast. Automated breast ultrasound (ABUS) is a safe, noninvasive imaging test that uses no radiation to produce detailed 3D images of your breast tissue. ABUS can help your provider see areas that might be harder to detect on a mammogram alone, giving you extra clarity and peace of mind.
What is ABUS?
ABUS is an automated breast ultrasound test that takes detailed 3D images of your breast using sound waves. It is especially helpful for women with dense breasts, because traditional mammograms may not show all tissue clearly. ABUS is radiation free, painless and can catch curable cancer cells that a mammogram may miss in women with dense breast tissue.
How ABUS Works
During an ABUS breast ultrasound, a provider places soft, warm gel on your breast, which helps the soundwaves travel from the machine to your tissue. They will use a specialized wand-like device to gently rub the area. The device automatically captures multiple images, which are then put together into a 3D picture of your breast tissue. These images allow your radiologist to carefully evaluate the entire breast, including areas that can be difficult to see with a mammogram alone.
ABUS uses technology to thoroughly scan all breast tissue and automatically take 3D images, helping make the process more comfortable and consistent.
Benefits of Using ABUS for Dense Breasts
Breasts are made of fatty and fibrous tissue. Dense breast tissue means that you have more fibrous tissue than fatty tissue.
Dense breast tissue can make it harder for a mammogram to detect changes because both dense tissue and some abnormalities appear white on a mammogram.
ABUS helps by:
- Detecting areas that may not be visible on a standard mammogram
- Offering a radiation-free supplemental option for peace of mind
- Providing a clearer, 3D view of dense tissue
- Supporting your provider in making more informed decisions about your breast health
ABUS is especially recommended if your mammogram shows dense tissue or if your provider wants extra detail to ensure nothing is missed.
What to Expect During an ABUS Exam
The ABUS exam is quick, comfortable and noninvasive.
Here’s what you can expect:
- You will lie on an exam table wearing a gown that opens in the front
- A technologist applies gel and uses the ABUS device to scan each breast
- The scan typically takes about 15-30 minutes total
- After the test, you will get redressed and check out
Most patients describe the experience as painless and calming, with clear guidance from the technologist throughout the exam. You can return to normal activities immediately afterward.
ABUS vs. Other Breast Imaging
ABUS supports traditional breast imaging.
| Imaging Type | How It Works | Best For | Radiation |
| Mammogram | Low-dose X-rays create 2D or 3D images | Routine breast cancer screening | Yes |
| ABUS breast ultrasound | Automated 3D ultrasound images using sound waves | Women with dense breasts, follow-up to mammogram | No |
| Handheld ultrasound | Technician manually moves transducer over breast | Evaluating specific lumps or abnormal areas found in earlier screenings | No |
When deciding between an ABUS mammogram or other imaging, your provider considers your breast density, your risk factors and earlier imaging results.
Frequently Asked Questions
Does ABUS use radiation?
No. ABUS uses sound waves to create images, so it is completely radiation free.
Is ABUS covered by insurance?
Coverage varies depending on your plan, so speak with your insurer for more information about ABUS.
How long does the exam take?
Most ABUS exams take 15-30 minutes, depending on your breast size and whether both breasts need to be scanned.
When will I get results from ABUS?
A radiologist reviews your images, and results are typically available within a few days. Your provider will contact you if additional imaging or evaluation is recommended.