In medical science it is of importance to obtain correct information about the patient, disease processing, analysis, evaluation, presentation and archiving.

Computer-aided diagnosis (CAD), is more recent than Hospital Information System (HIS) and Picture Archiving and Communication System (PACS).

The CAD programs find usage in many of clinical cases and by saving time and assist the radiologist in the evaluation and interpretation of radiological images as a second opinion which makes a significant contribution to the diagnosis