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ALBUQUERQUE VA MEDICAL CENTER PROJECT DEMONSTRATES CLINICAL APPLICATIONS FOR MAGNETIC SOURCE IMAGING

 ALBUQUERQUE VA MEDICAL CENTER PROJECT DEMONSTRATES
 CLINICAL APPLICATIONS FOR MAGNETIC SOURCE IMAGING
 SAN FRANCISCO, April 13 /PRNewswire/ -- Recent clinical research findings show that a new imaging technique developed by Biomagnetic Technologies Inc. (BTi) (NASDAQ: BTIX), called magnetic source imaging (MSI), creates a detailed road map of the brain that is proving critical in surgical planning and the diagnosis and treatment of a variety of brain disorders.
 According to initial clinical research findings, a brain map created using MSI techniques pinpoints the location of important sensory functions and helps guide neurosurgeons away from these areas during difficult surgical procedures.
 "The pre-operative functional mapping provided by MSI offers a powerful new clinical tool for the neurosurgeon. We can offer the surgeon a more complete road map of the brain so that surgery can be planned to preserve important sensory and motor functions thereby helping to reduce patient risk from these complex and difficult surgical procedures," said Dr. William Orrison, chief of the division of neuroradiology and professor at the Veterans Affairs Medical Center and the University of New Mexico School of Medicine in Albuquerque.
 Orrison also has found from his studies that MSI is useful in diagnosing and treating patients with a number of neurological disorders, including stroke, trauma, epilepsy, multiple sclerosis, vision and memory disturbances and dementias. "We have had specific cases where the MRI or CT scan may be minimally abnormal or, in some cases, completely normal, and the MSI has shown dramatic areas of abnormality. In these cases, without MSI, we had no imaging evidence that the patient had significant disease of the brain," he said.
 This new imaging device, called the Magnes(R) biomagnetometer, has been installed at three different major medical centers for clinical applications studies such as those in process at the VA. In addition to the VA Medical Center in Albuquerque, Magnes systems are installed for clinical applications development at Scripps Clinic and Research Foundation in La Jolla, Calif., and Tokyo University in Tokyo. Clinical studies at these locations also have demonstrated clinical applications for MSI in pre-surgical functional mapping and brain disorder diagnosis.
 According to Stephen James, president and chief executive officer of BTi, more than 370 patients and 100 normal control subjects have undergone MSI examinations to date at these clinical trial sites. "Dr. Orrison's positive reaction to MSI is based on a growing clinical record that is demonstrating the potential contribution that this instrument can make as a clinical tool," said James. "We are very encouraged by these preliminary results and plan to continue our clinical applications program to meet our goal of 1,000 clinical trials by the end of this year."
 Orrison plans to continue clinical evaluations with the Magnes system and hopes to present a report on his findings later this year at the American Society of Neuroradiology (ASNR) and the Radiological Society of North America (RSNA). Orrison indicated that he expects that several other papers also will be presented on clinical applications for MSI generated from the physicians at Scripps.
 Results of the first phase of an ongoing Magnetic Source Imaging (MSI) clinical evaluation project at the VA Medical Center conducted by Orrison were presented this week at seminars held to coincide with the American Association of Neurological Surgeons (AANS) meetings held April 11-16 in San Francisco. Orrison, who heads the clinical evaluation effort, summarized his initial findings from the more than 100 cases he has studied since the Albuquerque MSI system became operational in early January 1992. Presentations also were made by the Scripps Clinic and Research Foundation and Scripps Research Institute MSI surgical planning team. The MSI facility's director, Christopher Gallen, M.D., Ph.D., Thomas Waltz, M.D., president of Scripps Clinic and head of neurosurgery, and David Sobel, M.D., director of MRI, presented some of the results of more than 15 successful pre-surgical planning cases. Scripps has been an active MSI applications development site with more than 150 patient examinations completed to date.
 BTi is the only company to have received both FDA 510(k) marketing clearance for the Magnes system in the United States and Japanese Ministry of Health and Welfare approval for sale as a medical device in Japan. BTi is the recognized leader in the development of biomagnetometers for medical and commercial applications. Biomagnetic Technologies Inc. is traded on the NASDAQ under the symbol BTIX.
 -0- 4/13/92
 /CONTACT: Leslie Ferrini of Biomagnetic Technologies, 619-453-6300; or Bernie Rhinerson of Stoorza, Ziegaus & Metzger, 619-236-1332, for Biomagnetic Technologies/
 (BTIX) CO: Biomagnetic Technologies Inc. ST: California IN: MTC SU:


KJ-JL -- SD003 -- 7520 04/13/92 07:35 EDT
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Date:Apr 13, 1992
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