Determination of Coronary Failure with the Application of FFT and AR Methods

Authors:
Selami Serhatlioglu;Oktay Burma;Fı/rat Hardalaç/;İ/nan Gü/ler
Affiliations:
Department Radiology, Faculty of Medicine, Fı/rat University, Elazı/g, Turkey;Department Thoracic and Cardiovascular Surgery, Faculty of Medicine, Fı/rat University, Elazı/g, Turkey;Department Biophysics, Faculty of Medicine, Fı/rat University, Elazı/g, Turkey;Electronics and Computer Education Department, Faculty of Technical Education, Gazi University, 06500 Teknikokullar, Ankara, Turkey/ iguler@tef.gazi.edu.tr
Venue:
Journal of Medical Systems
Year:
2003

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Abstract

In this study, Doppler signals recorded from the output of carotid artery of 30 patients were transferred to a personal computer (PC) by using a 16-bit sound card. Doppler difference frequencies were recorded from each of the patients, and then analyzed using fast Fourier transform (FFT) and least squares autoregressive (AR) methods to obtain their sonograms. These sonograms are then used to compare with the applied methods in terms of medical evaluation.