Breast thermography is a 15 minute non invasive test of physiology. It is a valuable procedure for alerting your doctor to changes that can indicate early stage breast disease.
The benefit of breast thermography is that it offers the opportunity of earlier detection of breast disease than has been possible through breast self examination, doctor examination [...]

Content from ACCT website
One day there may be a single method for the early detection of breast cancer. Until then, using a combination of methods will increase your chances of detecting cancer in an early stage.
These methods include :

Annual breast thermography screening for women of all ages.
Mammography, when considered appropriate for women who are aged [...]