Electrical Bioimpedance Measurement as a Tool for Dysphagia Visualization

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dc.contributor.authorChester CJ
dc.contributor.authorGaynor PT
dc.contributor.authorJones RD
dc.contributor.authorHuckabee ML
dc.date.accessioned2018-06-14T04:42:37Z
dc.date.available2018-06-14T04:42:37Z
dc.date.issued2014en
dc.date.updated2018-02-13T23:43:10Z
dc.description.abstractA non-invasive and portable bioimpedance method and a device for detecting superior to inferior closure of the pharynx during swallowing have been developed. The 2-channel device measures electric impedance across the neck at two levels of the pharynx via injected currents at 40 and 70 kHz. The device has been trialled on both healthy and dysphagic subjects. Results from these trials revealed a relationship (r = 0.59) between the temporal separation of the second peaks in the bioimpedance waveforms and descending pressure sequence in the pharynx as measured by pharyngeal manometry. However, these features were only clearly visible in the bioimpedance waveforms for 64% of swallows. Further research is underway to improve the bioimpedance measurement reliability and validate waveform feature correlation to swallowing to maximise the device's efficacy in dysphagia rehabilitation.en
dc.identifier.doihttps://doi.org/10.1049/htl.2014.0067
dc.identifier.issn2053-3713
dc.identifier.issn2053-3713
dc.identifier.urihttp://hdl.handle.net/10092/15554
dc.languageEnglish
dc.language.isoen
dc.subject2-channel deviceen
dc.subjectbioelectric phenomenaen
dc.subjectbioimpedance measurement reliabilityen
dc.subjectbioimpedance waveformsen
dc.subjectbiomedical measurementen
dc.subjectdescending pressure sequenceen
dc.subjectdysphagia rehabilitationen
dc.subjectdysphagia visualisationen
dc.subjectdysphagic subjectsen
dc.subjectelectric impedance measurementen
dc.subjectelectrical bioimpedance measurementen
dc.subjectfrequency 40 kHzen
dc.subjectfrequency 70 kHzen
dc.subjectinjected currentsen
dc.subjectmedical disordersen
dc.subjectnecken
dc.subjectpharyngeal manometryen
dc.subjectpharynx closureen
dc.subjectportable bioimpedance methoden
dc.subjectswallowingen
dc.subjectwaveform feature correlationen
dc.subject.anzsrcFields of Research::32 - Biomedical and clinical sciences::3206 - Medical biotechnology::320602 - Medical biotechnology diagnostics (incl. biosensors)en
dc.subject.anzsrcFields of Research::32 - Biomedical and clinical sciences::3202 - Clinical sciences::320209 - Gastroenterology and hepatologyen
dc.subject.anzsrcFields of Research::40 - Engineering::4003 - Biomedical engineering::400308 - Medical devicesen
dc.titleElectrical Bioimpedance Measurement as a Tool for Dysphagia Visualizationen
dc.typeJournal Articleen
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