MADSION, Wis.--(BUSINESS WIRE)--TomoTherapy Incorporated (NASDAQ:TOMO) announced today that it has begun shipping a faster version of its proven platform for image-guided, intensity-modulated radiation therapy (IG-IMRT). Version 3.1 of the TomoTherapy® Hi-Art® treatment system includes new software and hardware features that enhance clinical productivity and system usability, and are expected to increase patient throughput.