Survey on recent CAD system for liver disease diagnosis

Computer Aided Diagnosis (CAD)systems provides computerized aid to medical practitioners that serves as a second opinion in the detection and diagnosis of diseases. Medical imaging modalities are the most effective non-invasive technique used for the classification of liver diseases. Imaging of abdominal organs for diagnosis of liver disease is usually carried out by Computed tomography. The computer aided diagnosis system consists of mainly four steps like preprocessing, segmentation, feature extraction, feature selection and classification. This article reviews the various recent CAD systems used for the classification of liver diseases using CT scan images and results of the various methods are summarized.