3Di is a software package of PACS workstation for handling multimodality (CT, XA, MR, PET,SPECT, Ultrasound &Mammography) images, which are using DICOM protocol. It includes volume rendering, Multi-planar reconstruction (MPR) and viewing of the inner and outer surfaces of organs as well as within their walls. 3Di is intended for use as an interactive tool for assisting professional Radiologists, Cardiologists and specialists to reach their own diagnosis, by providing tools of communication, clinics networking, WEB Serving, image viewing, image manipulation,2D/3D image visualization, image processing, reporting and archiving. The 3Di indications for use are processing of Cardiac CT studies, including CT Calcium scoring, CT Cardiac angiography, coronaries analysis, cardiac functional assessment and CT colonoscopy.