Abstract: Many scholars are keen to study how to raise the sensitivity of breast cancer computer-aided diagnosis system (CAD), especially the images for Asian women and young women with dense tissue. A solution of the images is proposed before and the experiment also shows that the method can improve the system sensitivity (true positive rate TP), but people found that the increase in TP is also accompanied by a false-positive rate (FP) of the growth. Therefore, this article aims to continue research on the basis of the former, namely, to ensure the sensitivity of CAD systems while reducing the false positive rate as much as possible.

Key words: medical CAD system, sensitivity, true positive rate, false positive rate