Title :
Quantitative assessment of stenotic heart lesions by continuous spectral analysis of heart murmurs
Author :
Donnerstein, Richard L.
Author_Institution :
Department of Pediatrics (Cardiology), University of Arizona College of Medicine, Tucson, AZ 85724
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
Continuous frequency spectra of heart murmurs were compared to jet velocities distal to associated obstructions measured by Doppler echocardiography. Murmurs were digitized at 20.8 kHz and divided into 12.3 ms (256 point) segments for spectral analysis by the maximum entropy method. Instantaneous and peak dominant murmur frequencies correlated respectively to instantaneous and peak Doppler jet velocities (r=0.85 and 0.89).
Keywords :
Cardiography; Cardiology; Doppler effect; Heart;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris, France
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5761600
