APPLICATION OF ADAPTIVE FTF/FAEST ZERO TRACKING FILTERS TO NONINVASIVE CHARACTERIZATION OF THE SOUND PATTERN CAUSED BY CORONARY-ARTERY STENOSIS BEFORE AND AFTER ANGIOPLASTY

被引：11

作者：

AKAY, M

AKAY, YM

WELKOWITZ, W

SEMMLOW, JL

KOSTIS, J

机构：

[1] UMDNJ,ROBERT WOOD JOHNSON MED SCH,DEPT SURG BIOENGN,NEW BRUNSWICK,NJ

[2] UMDNJ,ROBERT WOOD JOHNSON MED SCH,DEPT MED,NEW BRUNSWICK,NJ

来源：

ANNALS OF BIOMEDICAL ENGINEERING | 1993年 / 21卷 / 01期

关键词：

ADAPTIVE ZERO TRACKING FILTERS; CORONARY ARTERY DISEASE; HEART SOUNDS; ACOUSTIC;

D O I：

10.1007/BF02368160

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This article presents a new signal processing application that can be used for acoustical detection of coronary artery disease before and after angioplasty. The adaptive Auto-regressive (AR) method based on the FTF/FAEST (Fast transversal filters/Fast a posteriori error sequential techniques) is used to track acoustical behavior associated with coronary occlusions. Using the amplitude trajectory of the second pole pair of this method, 9 out of 10 angioplasty patients were correctly identified using a blind protocol without prior knowledge of whether a given recording was made before and after angioplasty. These results were obtained from signals located between 200 and 300 msec after the end of the second heart sound during the diastolic period.

引用

页码：9 / 17

页数：9

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