Determination of Behcet disease with the application of FFT and AR methods


Guler İ. , Hardalac F. , Ubeyli E.

COMPUTERS IN BIOLOGY AND MEDICINE, cilt.32, sa.6, ss.419-434, 2002 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Konu: 6
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1016/s0010-4825(02)00038-0
  • Dergi Adı: COMPUTERS IN BIOLOGY AND MEDICINE
  • Sayfa Sayıları: ss.419-434

Özet

In this study, Doppler signals recorded from ophthalmic artery of 86 patients were processed by personal computer using fast Fourier transform, Burg autoregressive (AR), and least-squares AR methods. By using these spectrum analysis techniques, the variations in the shape of the Doppler spectrums as a function of time were presented in the form of sonograms in order to obtain medical information. These sonograms were then used to compare the applied methods in terms of their frequency resolution and the effects in determination of Behcet disease. (C) 2002 Elsevier Science Ltd. All rights reserved.