A Various CAD systems using mammogram for diagnosing breast cancer

According to the report by Indian Council of Medical Research (ICMR) among women, total number of cancer cases is 7,12,758 in 2020 and may reach 8,06,218 in 2025. Breast Cancer is the mostly occur in women is expected to be 2,38,908 cases in 2025 which is 30% of total cancer causes. Detection of breast cancer at the initial stage is a main role in dropping the cancer cases. Developing a Computer Aided Diagnosis (CAD) system helps the radiologist to diagnosis the cancer at the initial stage. In this study review of recent CAD advancements, overview of steps used, methods used in each step is done. The study reveals that even though CAD system is promising but the current performance level could be improved. The performance level can be increased by improving the existing methods or finding new methods, so that CAD can be used as standalone system for detection and diagnosing breast cancer at clinics.