Pinnacle³ radiation treatment planning system with fully integrated photon, electron, stereotaxy, brachytherapy, simulation, image fusion, and IMRT options allows to perform treatment planning tasks from a single platform.  Pinnacle³’s Collapsed Cone Convolution Superposition (CCCS) algorithm is one of industry’s accurate, true 3D dose calculation algorithm. Philips Healthcare's Model Based Segmentation (MBS) software includes an anatomical library of 3D patient organ structures models, which reduce the time oncologists spend manually drawing contours. IGRT workflow is enhanced with (MBS) software by allowing clinicians to propagate organs to alternate 4D datasets to determine the extent of tumor movement within the patient. The powerful, time saving Pinnacle³ scripting tool allows the user to record and play back steps in the planning process including region of interest names, colors and graphics, automatic isocenter placement, beam sizes and orientations (gantry, couch and collimator) etc..