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| Titel: |
Investigation of digestive system disorders with electrogastrogram using wavelet transform denoising |
| Auteur: |
Gopu G. Neelaveni R. Porkumaran K. Shekar M.G. |
| Verschenen in: |
International journal of machine intelligence |
| Paginering: | Jaargang 2 (2010) nr. 1 pagina's 16-28 |
| Jaar: |
2010 |
| Inhoud: |
A digestive system disorders are the very important problem in human being universally. As apanacea, a preliminary investigation method is proposed before the endoscopy procedure is calledElectrogastrography. Electrogastrogram [EGG] is obtained from the human being cutaneously, which is noninvasive,easy procedure over endoscopy. EGG recorded for a 180 human being includes the normalindividual and patients with digestive system disorder such us Nausea, Dyspepsia, Vomiting, ulcer, etc. Adatabase is created for the analysis purpose. During the acquisition of EGG, the analog signal’s numericvalues are recorded as .bio file format using the data scope. Wavelet transform is used for the analysis ofEGG to find the deviation in frequency and Power from the power spectrum estimate plot obtained fordisorders patients compare to normal Individual. Wavelet Transform analysis includes the principlecomponent analysis, denosing of the signal and power spectrum estimation. In the proposed waveletanalysis, the data of a patient or normal individual is included for analysis. The EGG signal is reconstructedwith a data obtained from the data scope. This signal undergoes principle component analysis to remove thenoise in the EGG signal to obtain de-noised signal and it is plotted for power spectral density estimation withWelch power spectral Density Estimation. As a result of the proposed method the power variation is found tobe a range of 40-52dB and frequency is detected as 0.06 Hz to 0.075Hz for ulcer patient 0.02 Hz to 0.04 Hzfor dyspepsia patient and 0.05Hz to 0.058 Hz for Normal Individual. The above said finding supports thephysician in the diagnosis of digestive system disorders at fair amount of accuracy. |
| Uitgever: |
Bioinfo Publications (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 8 van 12 gevonden artikelen
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