Learn about Mammogram or Breast Ultrasound for woman medical tests, including what the tests are used for, why a doctor may order a test, how a test will feel, and what the results may mean.
A mammogram uses a low dose of radiation to take an image of the breast. An ultrasound uses high-frequency sound waves and converts them to an image. No radiation is involved. The soundwaves are sent through a wand called a transducer. No plates are involved and the breasts are not flattened.
Mammogram or Breast Ultrasound is done to detect early breast cancer when the chance of a cure is the highest.
Mammograms are not often used in women under 40. Younger women’s breast tissue can be dense which can make the x-ray image less clear so changes can be harder to identify. However, for some women under 40, mammograms may still be needed to complete the assessment.
An ultrasound scan uses sound waves to produce an image of the breast tissue.
You may hear your results described as a letter and a number. 'M' stands for mammogram. 'U' stands for ultrasound.
Mammography | Ultrasound | ||
---|---|---|---|
M1 | Normal breast tissue | U1 | Normal breast tissue |
M2 | Benign (not cancer) | U2 | Benign (not cancer) |
M3 | Abnormal or uncertain but probably benign | U3 | Unusual, abnormal or uncertain but probably benign |
M4 | Suspicious and possibly cancer | U4 | Suspicious and possibly cancer |
M5 | Cancer | U5 | Cancer |
Other related test: Breast Ultrasound, Breast Exam