Comparison of FFT, AR and Wavelet Methods in Transcranial Doppler Signal Obtained From Intracerebral Vessels

Abstract

In this work, transcranial Doppler signals recorded from the temporal region of brain on 35 patients were transferred to a personal computer (PC) via 16 bit sound card. FFT, AR and WT methods were applied to transcranial Doppler for obtaining sonograms. Spectral analysis were obtained in order to compare with three methods in the case of medical diagnosis. The comparison shows that WT method offers better results for the spectral resolution than the other methods. This also leads the determination of brain pressure more accurately.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA411222

Entities

People

  • F. Hardalac
  • F. S. Erol
  • I. Gueler

Organizations

  • Gazi University

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Abstracts
  • Aneurysm
  • Arteries
  • Blood
  • Blood Flow
  • Blood Vessels
  • Computers
  • Discrete Fourier Transforms
  • Education
  • Engineering
  • Fast Fourier Transforms
  • Flow
  • Frequency
  • Gray Scale
  • Pattern Recognition
  • Personal Computers
  • Sonograms

Fields of Study

  • Medicine

Readers

  • Computer Programming and Software Development.
  • Image Processing and Computer Vision.
  • Radar Systems Engineering.