AUTOREGRESSIVE-BASED SONOGRAM OUTPUTS OF 20 MHZ PULSED DOPPLER DATA


GULER N., KIYMIK M., GULER İ.

MEDICAL PROGRESS THROUGH TECHNOLOGY, vol.21, no.2, pp.105-110, 1995 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 2
  • Publication Date: 1995
  • Journal Name: MEDICAL PROGRESS THROUGH TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.105-110
  • Gazi University Affiliated: No

Abstract

The sonogram outputs of autoregressive (AR) based spectral analysis of a 20 MHz pulsed ultrasonic Doppler blood flowmeter are presented. The data obtained from coronary and iliac arteries were processed using AR-based spectral analysis technique, and then the interpretable sonograms by the surgeons were constructed. When the sonogram outputs were compared to other sonograms which were analysed using the other techniques such as fast Fourier transform (FFT), it was observed that AR-based sonograms for 20 MHz pulsed Doppler data have provided better results. Therefore, the technique is strongly recommended in the examining of small vessels which are 1 to 2 mm in diameter.