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ACUSON'S NEW 'ACOUSTIC RESPONSE TECHNOLOGY' CALLED FUNDAMENTAL TO DIAGNOSTIC ULTRASOUND

 NEW YORK, May 11 /PRNewswire/ -- Acuson Corp. (NYSE: ACN) today announced a fundamental ultrasound development that significantly improves the image quality and information content available with medical diagnostic ultrasound equipment. Acuson's new Acoustic Response Technology (ART) electronically manages the shape of the ultrasound frequency spectrum in a new way, allowing sound waves to travel through the body with less of the distortion and information loss normally caused by the body to the ultrasound beam.
 Acoustic Response Technology is expected to have broad diagnostic application across the majority of general imaging ultrasound studies performed, including abdominal, obstetrical, vascular, small parts (thyroid, breasts, testes,) and neonatal exams.
 Tissue Bandwidth Aberrations
 Acoustic waves are carried through the body by a spectrum of frequencies transmitted by the ultrasound system. The sound reflects off different body tissues and is received back by the system, where it is converted into electrical impulses and processed into images on a monitor. Because the human body is an imperfect medium through which to send sound waves, the spectrum of frequencies used has always been distorted as it travels through tissue. This distortion, which Acuson calls tissue bandwidth aberration, decreases the resolution of images, causing valuable diagnostic information to be lost, especially when examining structures found deep in the body.
 "We have known for years what the body does to ultrasound echoes, and it was an effect we thought we'd always have to live with," said Samuel H. Maslak, Sc.D., Acuson president and chief executive officer. "But with Acoustic Response Technology, we apply computer control to the shape of the ultrasound frequency spectrum at all parts of the imaging chain -- in transmit electronics, receive electronics, signal processing and in the transducer. The result is significantly reduced tissue bandwidth aberrations, and significantly better images in grayscale, Doppler and color Doppler, even at depth or in difficult-to-image patients. Acuson has applied for a patent in connection with Acoustic Response Technology," said Maslak.
 "At least five times as much is spent on treatment as on diagnosis in the U.S. today," said Maslak, "yet every dollar spent on early, correct diagnosis saves dollars downstream. Making a correct diagnosis the first time is always cost-effective. Ultrasound will play an increasing role in reducing health care costs in view of growing cost containment pressures. Ultrasound is considerably less expensive than other imaging procedures, and because of innovations like ART, is an increasingly accurate diagnostic tool," he added.
 Clinical benefits reported by ART evaluation sites include crisper structural borders, more highly resolved tissue texture and greater contrast resolution. "These are not just aesthetic effects we are bringing to the diagnostic image. With ART, there is a significant increase in information content that will be extremely helpful in making difficult diagnoses," said Acuson Executive Vice President John G. Freund, M.D., who is managing the introduction of ART.
 Acuson is previewing ART at technology seminars this spring in more than a dozen cities around the world, with over 2,000 health care professionals expected to attend. Acuson expects to ship the new technology this fall as an option on new Acuson(R) 128XP/10 systems as well as a field-installable option to the worldwide installed base of more than 8,000 Acuson Computed Sonography Systems.
 Headquartered in Mountain View, Calif., Acuson is a leading manufacturer and international marketer of premium grade medical diagnostic ultrasound systems, which are marketed through direct, subsidiary and independent distributor sales organizations. In 1992, Acuson had sales of $343 million.
 -0- 5/11/93
 /CONTACT: Amy M. Cook of Acuson, 415-694-5460 or 800-4-ACUSON/
 (ACN)


CO: Acuson Corp. ST: California IN: MTC SU: PDT

SV-LM -- SJ003 -- 6877 05/11/93 09:06 EDT
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Date:May 11, 1993
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