DocumentCode
2495228
Title
Spectral estimators for Doppler analysis of intracoronary ultrasound catheters
Author
Roth, Th ; Brennecke, R. ; Conradi, G. ; Erbel, R. ; Meyer, J.
Author_Institution
Med. Clinic, Johannes Gutenberg Univ., Mainz, Germany
fYear
1991
fDate
23-26 Sep 1991
Firstpage
709
Lastpage
712
Abstract
With the zero-cross-detection method (ZCD) it has been shown that it is not possible to achieve a reproducible quantitative, and robust evaluation of an inter-coronary audio signal. The authors define spectral estimators to analyze the Doppler-audio signal. Measurements in a blood flow model have shown that the ZCD method underestimates the expected velocity at all speeds. Spectral analysis allows the determination of the actual and peak velocity more robustly and precisely
Keywords
Doppler effect; biomedical ultrasonics; cardiology; haemodynamics; spectral analysis; Doppler analysis; blood flow model; haemodynamic measurements; inter-coronary audio signal; intracoronary ultrasound catheters; medical US; peak velocity; spectral analysis; spectral estimators; zero-cross-detection method; Blood flow; Catheters; Fluid flow measurement; Frequency; Pulse measurements; Robustness; Signal analysis; Spectral analysis; Ultrasonic imaging; Ultrasonic variables measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Computers in Cardiology 1991, Proceedings.
Conference_Location
Venice
Print_ISBN
0-8186-2485-X
Type
conf
DOI
10.1109/CIC.1991.169010
Filename
169010
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