Computer processing of cardiac Doppler signals |
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| Authors: | MR A Heringa J Alsters J Hopman I van Dam O Daniëls |
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| Institution: | (1) Interuniversity Institute of Cardiology/Department of Paediatric Cardiology, University Hospital, Nijmegen, The Netherlands;(2) Afdeling Kindercardiologie, Radbound Ziekenhuis, Geert Grooteplein Z 20, Nijmegen, The Netherlands |
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| Abstract: | A computer processing method has been developed for the extraction of parameters from cardiac Doppler signals. This method
is based on the nature of these signals and on the method of their measurement. The parameters are estimated after background
subtraction from adequately smoothed spectrograms. The improvement gained by this method of parameter extraction from smoothed
spectrograms, rather than from raw spectrograms, is demonstrated. The method is used successfully in a reference value study
of cardiac Doppler signals. |
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| Keywords: | Computer Doppler Spectral analysis |
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