Breast and Mammography Services

Detecting breast cancer in its earliest stage increases both treatment options and survival rates.

For education and early detection, St. Anthony's Breast Center provides area women with comprehensive, advanced breast health care services in four convenient locations:

  • St. Anthony’s Breast Center – at the Plaza
  • St. Anthony's Medical Center
  • Fenton Imaging Center & Outpatient Services
  • St. Anthony's at Southwest Medical Center 


Appointments can be made easily for all listed services with just one call.  Simply call 1-314-525-1300 or 1-800-991-7262 to schedule.

St. Anthony's Breast Center Services

  • 3D mammography (tomosynthesis)  
  • digital mammography
  • bone density scans
  • ultrasound
  • breast biopsy

3D Mammography (Tomosynthesis)

St. Anthony’s comprehensive, advanced breast care services offers the latest technology in breast cancer detection: digital breast tomosynthesis (DBT), also known as three-dimensional or 3D mammography. 3D mammography can more accurately detect cancers than conventional mammograms, and has been shown to reduce the number of false positive results. 

Conventional mammograms offer views of the breast from two angles. 3D imaging is similar to CT (computed tomography) technology in that it performs a series of X-rays from many angles in an arc across the breast. Then, using a computer, radiologists synthesize a three-dimensional image of the breast. Digital breast tomosyntehesis is much better at delineating what might be cancerous in a dense breast such as microcalcifications or a subtle mass. Digital breast tomosynthesis is most useful for women who have dense breast tissue, which is about 40 percent of all women.

3D Mammography is available at St. Anthony's Breast Center at the Plaza. The remainder of our locations (Fenton, St. Anthony's at Southwest Medical Center and the main hospital) use traditional digital mammography. 

Computer-Aided Detection

The Computer-Aided Detection (CAD) system is a diagnostic tool for review of mammograms that mark suspicious areas for the radiologist to take a second look. This system helps the doctor make a more informed decision about whether a patient needs to return for further testing.


St. Anthony’s Breast Center offers ultrasounds to assist in the diagnosis of breast cancer. Ultrasound is used to further evaluate a breast lump or other abnormality seen on a mammogram.

Breast MRI

MRI is an advanced technology used to view an abnormality of the breast. An MRI uses no X-rays, so there is no exposure to radiation.

Stereotactic Breast Biopsy

If an abnormality is detected on a mammogram or ultrasound, St. Anthony’s Breast Center offers stereotactic breast biopsy, a procedure that determines if cancer is present. A breast biopsy can be performed effectively under local anesthetic, with little or no discomfort. Stereotactic breast biopsy is an outpatient procedure performed by a certified radiologist, assisted by a mammography technologist.

Ultrasound-Guided Biopsy

Another biopsy method is ultrasound-guided biopsy. This method may also be used for aspiration of cysts.

Bone Density Scans

Osteoporosis is a medical condition that causes bones to become weak and brittle and commonly results in a fracture in the spine, hip or wrist.Causes of Osteopenia and Osteoporosis include:

  • lower levels of bone mass
  • in women, decreased estrogen production during menopause
  • inadequate intake of vitamin D and calcium
  • insufficient amount of exercise

For your convenience, you may schedule a bone density scan at the same time you schedule your mammogram at the Breast Center by calling 314-525-1300. This is a safe and painless screening performed with the patient fully clothed. It takes about five minutes to complete. A bone density scan is covered by most insurance programs, but it must be ordered by a physician.

Breast Health Team

Our team approach allows us to provide prompt care. 

Our Multidisciplinary Team Includes:

  • radiologists
  • surgeons
  • radiation oncologists
  • medical oncologists
  • pathologists
  • technologists
  • breast care navigator

Fast Track Program

St. Anthony’s is the only hospital in the region with a defined Fast Track policy for handling diagnostic mammograms. This policy eliminates the stress women experience while trying to schedule follow-up tests, which commonly takes a week or more elsewhere.

Completely designed around the patient, the goals of the Fast Track program is to obtain accurate images and biopsies as fast as possible with imaging results that day and biopsy pathology reports within two working days. This quick turnaround service helps alleviate a woman’s anxiety or helps her to seek treatment immediately.

Breast Cancer Risks

The risk of developing breast cancer is different for each woman, depending on lifestyle and personal traits known as risk factors.

The following risk factors are strongly related to the disease:

  • advanced age - the older a woman is the greater her risk
  • family history - mother, sister(s) or daughter(s) who have had breast cancer
  • never having given birth
  • having a first child after age 30
  • early first menstrual period
  • history of benign breast disease that required biopsies
  • certain other pre-existing breast conditions


  • Women ages 20-40 should have a clinical breast exam at least once a year and perform a breast self-exam once a month.
  • Women age 40 and older should have a mammogram every 1 to 2 years.
  • Women who are at higher than average risk of breast cancer should talk with their health care providers about whether to have a mammogram before age 40 and how often to have them.

To schedule your screening mammogram, call 314-525-1300.