TomoTherapy to Announce First-Quarter Results on Monday, April 28

MADISON, Wis – April 3, 2008 – TomoTherapy Incorporated (NASDAQ: TOMO) announced today that it will release its 2008 first-quarter results on Monday, April 28, 2008 at 3:00 p.m. CDT.

TomoTherapy will hold an investment community conference call on Monday, April 28, 2008 beginning at 4:00 p.m. CDT. Dr. Fred Robertson, CEO, and Steve Hathaway, CFO, will review first-quarter performance and discuss the company’s strategies. To join the conference call, dial 1-866-271-5140 (international 1-617-213-8893) and enter passcode 51195234. A replay of the conference call will be available one hour after the call ends through 11:59 p.m. CDT on April 30, 2008. To access the replay, dial 1-888-286-8010 (international 1-617-801-6888) and enter passcode 44715707.

For individual investors, a live Webcast of the conference call will be available on the Investor Relations page of TomoTherapy.com. Institutional investors can access the Webcast through a password-protected site www.streetevents.com. An archived Webcast of TomoTherapy’s conference call will be available for two weeks.

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. 

3 Apr 2008