A PHONOANGIOGRAPHIC SPECTRAL ANALYZER FOR CORONARY ARTERY STENOSIS

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 16700
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1991
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
W226 N555b Eastmound Drive, Waukesha, WI, 53186
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Schlager, Kenneth J
 Principal Investigator
 (414) 896-2650
Business Contact
 1 R43 HL46079- 01A1
Phone: () -
Research Institution
N/A
Abstract
A RELIABLE AND INEXPENSIVE NONINVASIVE PROCEDURE FOR DETECTING CORONARY STENOSIS WOULD BE HIGHLY USEFUL IN THE DIAGNOSIS AND IN FOLLOWING THE TREATMENT OF CORONARY ARTERY DISEASE. BIOTRONICS HAS PREVIOUSLY DEVELOPED A PHONOANGIOGRAPHIC SPECTRAL ANALYZER (PSA) WHICH IS CAPABLE OF MEASURING LOW FREQUENCY SOUND GENERATED BY ARTERIAL NARROWING WHICH PRODUCES POST STENOTIC TURBULENCE. PREVIOUS APPLICATION OF THE PSA EMPHASIZED DETECTION OF STENOSIS WAS DEMONSTRATED AT A LOCAL MEDICAL COMPLEX IN COMPARISON WITH DIGITAL SUBTRACTIVE ANGIOGRAPHY AND WAS APPROVED FOR MARKET ENTRY BY THE U. S. FOOD AND DRUG ADMINISTRATION. THE PHASE I RESEARCH EFFORT WOULD EXTEND THE APPLICATION OF THE PSA TO DETECTING AND MEASURING STENOSIS IN THE CORONARY ARTERIES. THIS PROJECT IS MORE DIFFICULT BECAUSE OF THE INTERFERENCE OF THE FIRST AND SECOND HEART SOUNDS AND OTHER BACKGROUND NOISE. THIS INTERFERENCE CAN BE MINIMIZED, HOWEVER, BY PROPER TIMING OF PSA MEASUREMENT DURING DIASTOLE WHEN CORONARY STENOTIC SOUNDS ARE LOUDEST AND BACKGROUND SOUNDS ARE AT A MINIMUM. SOPHISTICATED SIGNAL PROCESSING AND PATTERN RECOGNITION TECHNIQUES WILL BE USED TO EXTRACT SIGNAL AND PROVIDE AN ACCURATE SCREEN- LEVEL DIAGNOSIS.

* Information listed above is at the time of submission. *

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