Supporting gastroesophageal reflux disease diagnostics by using wavelet analysis in esophageal pH-metry
Piotr M. Tojza, Grzegorz Redlarski, Maria Janiak
DOI: http://dx.doi.org/10.15439/2018F36
Citation: Proceedings of the 2018 Federated Conference on Computer Science and Information Systems, M. Ganzha, L. Maciaszek, M. Paprzycki (eds). ACSIS, Vol. 15, pages 287–294 (2018)
Abstract. This paper presents a new approach to computer supported esophageal pH-metry measurement analysis per- formed in order to diagnose gastroesophageal reflux disease. In this approach wavelet analysis was used to analyse the esophageal pH-metry course. The research was performed on three groups of pH-metry courses: whole 24-hour pH-metry course, sleep only pH-metry course and 20 minutes after the end of a meal pH- metry course. After performing a 128 level decomposition of the pH-metry course, the Wx was defined as a parameter of extreme differential. This parameter was used to distinguish patients esophageal ph-metry results and on that basis classify patients as healthy or sick. Using this method the a sensitivity of 77\% was achieved.
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