Aspect Medical to Report First Quarter 2008 Results April 17, 2008 Conference Call Scheduled for Same Day

  
    
  
  
    
      Aspect Medical Systems, Inc. (NASDAQ: ASPM) will report earnings results 
      for the 2008 first quarter on Thursday, April 17, 2008. Following the 
      earnings announcement on Thursday morning, the Company will host a 
      conference call and live webcast at 10:00 a.m. Eastern Time for all 
      interested parties, including financial analysts, portfolio managers, 
      individual investors and members of the press. To participate in the 
      call, please dial 1-888-715-1402 (domestic), 1-913-981-5573 
      (international), or access the webcast at www.aspectmedical.com 
      on the Investor page, or at www.earnings.com. 
      Telephone replays will be available by dialing 1-888-203-1112 
      (domestic), or 1-719-457-0820 (international), access code 8430175. The 
      webcast replay will be available from April 17, 2008 to April 24, 2008.
    
    
      ABOUT ASPECT MEDICAL SYSTEMS, INC.
    
    
      Aspect Medical Systems, Inc. (NASDAQ: ASPM) is a global market leader in 
      brain monitoring technology. To date, the Company's Bispectral Index 
      (BIS) technology has been used to assess approximately 25 million 
      patients and has been the subject of more than 3,100 published articles 
      and abstracts. BIS technology is installed in approximately 80 percent 
      of hospitals listed in the July 2007 U.S News and World Report 
      ranking of America's Best Hospitals and in approximately 60 percent of 
      all domestic operating rooms. In the last twelve months BIS technology 
      was used in approximately 17 percent of all U.S. surgical procedures 
      requiring general anesthesia or deep sedation. BIS technology is 
      available in more than 160 countries. Aspect Medical Systems has OEM 
      agreements with nine leading manufacturers of patient monitoring 
      systems. The company is also investigating how other methods of 
      analyzing brain waves may aid in the diagnosis and management of 
      neurological diseases, including depression and Alzheimer's disease. For 
      more information, visit Aspect's Web site at http://www.aspectmedical.com.