Novalis® has room based x-ray imaging called ExacTrac® has two x-ray tubes that are perpendicular to each other. It performs localization correction in two minutes. In addition, x-ray IGRT images are verified automatically and patient setup, including corrections with six-degree freedom. Infrared camera system can detect the difference of patient position and target position during the treatment and can make any necessary correction of the couch immediately.
Compared with traditional linac accelerator, the Novalis system can perform: (1) Imaged Guided Radiation Therapy (IGRT) - inclusive of x-ray and infrared imaged guided radiotherapy. (2) Cranial and extra-cranial stereotactic Radiosurgery (SRS) (3) Fractionated Stereotactic Radiotherapy (SRT) (4) Intensity-Modulated Radiosurgery (IMRS).