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A system for parallel measurement of glottis opening and larynx position| old_uid | 2651 |
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| title | A system for parallel measurement of glottis opening and larynx position |
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| start_date | 2007/04/19 |
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| schedule | 13h30 |
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| online | no |
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| location_info | salle à préciser |
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| summary | For ambulant use, non-invasive methods are still lacking for the diagnosis of dislocations of the larynx. The simultaneous visualisation of the glottal area and the glottis position during maneuvers such as singing, speaking or swallowing could, however, be helpful for the diagnosis and therapy of voice-, speech-, and swallowing disorders. Current methods for the dynamic tomography of the larynx are either inaccurate, invasive and/or rather costly. A method is described which assesses the dynamic opening status of the glottis as well as the vertical and back/forward motion of the larynx in real time. The system uses an electrode array for the insertion and detection of a small electric current from which the electric transfer impedance is calculated for different paths. The method is an extension of the one-dimensional electroglottography method (EGG), which is a well-established tool for the assessment of glottal parameters such as open quotiont (OQ) or fundamental frequency. The new method has been implemented in hardware and software (LabVIEW) and allows the visualisation of the glottal position in a 2D graph. First results are presented using a commercial EGG device and a new approach. |
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| responsibles | Loevenbruck, Welby |
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