Virtual Phantoms, Inc. has developed and is anchoredin a family of web-based software tools designed to enable accurate radiation dose calculations. With an exclusive license of virtual patient technologies developed at Rensselaer Polytechnic Institute (Troy, New York) and University of Florida, (Gainesville, Florida) , the fim offers deformable 3D/4D patient anatomical modeling and radiation dose calculations using the Monte Carlo methods. The firm's VirtualDoseCT, is targeted at x-ray CT dose tracking and reporting with VirtualDoseCT currently the only CT dose reporting product that is based on the 3rd-generation deformable virtual-patient technologies that have been shown to be 50% more accurate than the stylized patient models. Designed for ease of use by radiologists, technologists, medical physicists, regulators, manufacturers and researchers, the system has been through 20 years of research and has been thoroughly tested in major U.S. hospitals. VirtualDoseCT uses a family of anatomically correct phantoms and revolutionary GPU-based Monte Carlo radiation simulation techniques to enable radiation health professionals to obtain highly accurate images with much greater patient safety.