Germany's Leading Hospital Group Chooses TomoTherapy

TomoTherapy Incorporated (NASDAQ:TTPY) announced today that HELIOS Hospital Berlin-Buch has installed the TomoTherapy® Hi-Art® treatment system for advanced cancer care. The customer wanted a rapid installation process, and TomoTherapy responded. The order was placed on November 16 and the system was fully installed one month later. The first patient treatments are scheduled to begin the week of January 21, 2008. HELIOS Hospital Berlin-Buch is the newest hospital constructed by the HELIOS Hospital Group, which is the largest, most medically advanced hospital group in Germany. The HELIOS Hospital Group is a subsidiary of Fresenius ProServe, an international healthcare services and facilities management firm. "The HELIOS Hospital Group is an ideal partner for us,” said Rik Van den Neste, M.D., director of European sales for TomoTherapy. "They are a leader in the private hospital movement in Germany and committed to the most up-to-date medical care. We look forward to working with HELIOS to help ensure that their cancer patients have access to TomoTherapySM treatments by the end of next month.” HELIOS Hospital Berlin-Buch will become the seventh facility in Germany to install the TomoTherapy Hi-Art treatment system. The system was introduced in the United States in July 2003. Today, there are more than 150 Hi-Art radiation therapy systems in use around the world. About the HELIOS Group The HELIOS Group is the leading hospital group in Germany, operating 58 clinics with approximately 16,000 beds. HELIOS stands for first-class medical care, using both the most up-to-date and least intrusive methods. The HELIOS mission is to provide the finest medical treatment using state-of-the-art procedures. The TomoTherapy® Hi-Art® treatment system has been installed at the HELIOS Klinikum Berlin-Buch. First patient treatments are scheduled for end of January 2008. About TomoTherapy Incorporated TomoTherapy Incorporated has developed, manufactures and sells the TomoTherapy® Hi-Art® treatment system, an advanced radiation therapy system for the treatment of a wide variety of cancers. The Hi-Art treatment system combines integrated CT imaging with conformal radiation therapy to deliver sophisticated radiation treatments with speed and precision while reducing radiation exposure to surrounding healthy tissue. The company completed its initial public offering in May 2007 and its stock is traded on the Nasdaq Global Market under the symbol TTPY. To learn more about TomoTherapy, please visit our Web site at www.TomoTherapy.com. ©2007 TomoTherapy Incorporated. All rights reserved. TomoTherapy, the TomoTherapy logo and Hi-Art are among trademarks, service marks or registered trademarks of TomoTherapy Incorporated.