Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10351849 | Computers in Biology and Medicine | 2005 | 10 Pages |
Abstract
In this study, we have performed fast Fourier transformation (FFT) and autoregressive (AR) signal processing of the Doppler signals at a nonstenotic arterial site in patients with atherosclerosis and healthy volunteers. We have not only utilized Doppler sonograms, but also facilitated the power spectral density distribution graphs using AR modeling and FFT. Our preliminary analysis show that AR modeling has a higher efficacy in demonstrating Doppler spectral waveform changes in the preclinic or silent phase of atherosclerosis. AR has especially revealed an outstanding difference in the calculation for frequency level of maximum power spectral density.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Fatma Dirgenali, Sadık Kara, Nuri Erdoǧan, Mustafa Okandan,