Comput Methods Programs Biomed - Estimation algorithm of the bowel motility based on regression analysis of the jitter and shimmer of bowel sounds.

Tópicos

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Resumo

Bowel sound (BS) signals can be used clinically as useful indicators of bowel motility. In this study, we devised a modified iterative kurtosis-based detector algorithm, in order to enhance the de-noising performance of BS signals, and an estimation algorithm of bowel motility based on the regression modeling of the jitter and shimmer of BS signals obtained by auscultation. The correlation coefficient, coefficient of determination and errors between the colon transit times measured by a conventional radiograph and the corresponding values estimated by our method were 0.987, 0.974 and 3.5 ? 3.3h, respectively. These results demonstrated that our method could be used as a complementary tool for the non-invasive diagnosis and monitoring of bowel motility, instead of conventional radiography.

Resumo Limpo

bowel sound bs signal can use clinic use indic bowel motil studi devis modifi iter kurtosisbas detector algorithm order enhanc denois perform bs signal estim algorithm bowel motil base regress model jitter shimmer bs signal obtain auscult correl coeffici coeffici determin error colon transit time measur convent radiograph correspond valu estim method h respect result demonstr method use complementari tool noninvas diagnosi monitor bowel motil instead convent radiographi

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