TomoTherapy to Present at Piper Jaffray Health Care Conference

MADISON, WI--(Marketwire - November 17, 2009) - TomoTherapy Incorporated (NASDAQ: TOMO) today announced that Dr. Fred Robertson, CEO, and Thomas Powell, CFO, will present at the Piper Jaffray 21st Annual Health Care Conference on Tuesday, December 1, 2009, at 11:00 a.m., ET. The conference is scheduled for December 1-2 at The New York Palace in New York City, N.Y.

A live Webcast of the presentation will be available on the investor relations page of TomoTherapy.com. For those who are unable to listen to the live presentations, archives of the Webcasts will be available on the company's site for 30 days following the presentation.

About TomoTherapy Incorporated
TomoTherapy Incorporated develops, markets and sells advanced radiation therapy solutions that can be used to treat a wide variety of cancers, from the most common to the most complex. The ring gantry-based TomoTherapy® platform 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. TomoTherapy's suite of solutions include its flagship Hi·Art® treatment system, which has been used to deliver more than three million CT-guided, helical intensity-modulated radiation therapy (IMRT) treatment fractions; the TomoHD™ treatment system, designed to enable cancer centers to treat a broader patient population with a single device; and the TomoMobile™ relocatable radiation therapy solution, designed to improve access and availability of state-of-the-art cancer care. TomoTherapy's stock is traded on the NASDAQ Global Select Market under the symbol TOMO. To learn more about TomoTherapy, please visit TomoTherapy.com.

©2009 TomoTherapy Incorporated. All rights reserved. The following marks as used herein in italicized or stylized text are among trademarks, service marks or registered trademarks of TomoTherapy Incorporated in the United States and other countries: TomoTherapy, Tomo, TomoDirect, TomoHelical, TomoHD, TomoMobile, TQA, Hi·Art, and the TomoTherapy logo.