Is ultrasound an alternative for breast cancer screening?

Ask the doctor

Q. In your discussions of breast cancer screening, you never mention ultrasound. Is it an alternative to mammography?

A. No. Although the FDA has approved an automated breast ultrasound system to be used in addition to mammography for asymptomatic women with dense breasts, there are not enough published data about its effectiveness in screening to support its use. Moreover, ultrasound alone is not an alternative to mammography for routine breast cancer screening because ultrasound cannot pick up the small deposits of calcium (microcalcifications) that can be a sign of breast cancer.