Leading Italian Hospital Chooses TomoTherapy To Advance Radiation Therapy Program

TomoTherapy Incorporated (NASDAQ: TOMO) today announced that Azienda Ospedaliero - Universitaria di Modena in Modena, Italy has selected the Hi·Art^® treatment system for advanced radiation therapy. The leading Italian hospital was able to make this revolutionary technology available to regional cancer patients less than a month after receiving the system.

Stefano Cencetti, MD, Executive Director of Azienda Ospedaliero - Universitaria di Modena, explained, "Thanks to the perfect cooperation and planning between the hospital and TomoTherapy, we took delivery of our TomoTherapy^® system and just 30 days later we were already imaging and treating our first patient.”

Jef Van Dam, general manager of TomoTherapy EMEA added, "TomoTherapy continues to prove our strength in rapid machine installation to enable departments to minimize the time a bunker is non-operational. Pre-commissioning of the Hi·Art system and excellent physics and applications support saves costly resource hours in commissioning and testing, contributing to TomoTherapy's success in maximizing efficiency for our customers."

Azienda Ospedaliero - Universitaria di Modena is the first University Center in an Italian Public Hospital to invest in radiation technology to provide the most advanced treatments available in the market today. Clinicians plan to investigate new treatment opportunities using image-guided and adaptive radiation therapy with the Hi·Art system. The center covers radiation treatment for 13-15 percent of the regional population with 30 percent of those treatments considered complex or specialized and available in few hospitals within the region. Azienda Ospedaliero - Universitaria di Modena is one of six hospitals to offer TomoTherapy^SM in Italy.

"Use of CT imaging just before Helical TomoTherapy delivery helps assure a highly conformal treatment...and in only a few minutes,” said Dr. Cencetti. "We feel confident that we are now providing the most advanced radiation therapy for cases involving the brain, head and neck, lung, liver and prostate. Our center is also working on Partial Breast Irradiation Trials and we will conduct research involving TomoTherapy for total body irradiation and total lymph node irradiation.”

For more information about rapid Hi·Art system installation and the use of TomoTherapy for complex cases, visit booth B06:42 at the ESTRO annual meeting of the European Society for Therapeutic Radiology and Oncology (ESTRO) in Gothenburg, Sweden, Sept. 14-18, 2008. TomoTherapy will also introduce TomoDirect^™, a new discrete angle delivery mode that allows treatment of routine cases more efficiently.

About TomoTherapy Incorporated

TomoTherapy Incorporated has developed, markets 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’s stock is traded on the Nasdaq Global Select Market under the symbol TOMO. To learn more about TomoTherapy, please visit TomoTherapy.com.

©2008 TomoTherapy Incorporated. All rights reserved. TomoTherapy, TomoDirect, the TomoTherapy logo and Hi·Art are among trademarks, service marks or registered trademarks of TomoTherapy Incorporated.