trié(s) par (Pertinence décroissant(e), Titre croissant(e)) 

Preserving Wideband Tympanometry Information With Artifact Mitigation / Kristine E. Eberhard in Ear and hearing, Vol.43, n°2 (Mars-avril 2022)  

[article]  inEar and hearing > Vol.43, n°2 (Mars-avril 2022) . - p. 563-576 Titre : Preserving Wideband Tympanometry Information With Artifact Mitigation Type de document : Article Auteurs : Kristine E. Eberhard ; Hideko H. Nakajima ; Stephen T. Neely ; Stéphane Maison ; Salwa F. Masud ; Michael E. Ravicz ; Gabrielle R. Merchant Année de publication : 2022 Article en page(s) : p. 563-576 Langues : Anglais (eng) Descripteurs : Autres descripteurs Reflectance acoustique HE Vinci Oreille interne ; Oreille moyenne ; Tympanométrie ; Wideband absorbance (WBA) Résumé : Absorbance measured using wideband tympanometry (WBT) has been shown to be sensitive to changes in middle and inner ear mechanics, with potential to diagnose various mechanical ear pathologies. However, artifacts in absorbance due to measurement noise can obscure information related to pathologies and increase intermeasurement variability. Published reports frequently present absorbance that has undergone smoothing to minimize artifact; however, smoothing changes the true absorbance and can destroy important narrow-band characteristics such as peaks and notches at different frequencies. Because these characteristics can be unique to specific pathologies, preserving them is important for diagnostic purposes. Here, we identify the cause of artifacts in absorbance and develop a technique to mitigate artifacts while preserving the underlying WBT information. Design: A newly developed Research Platform for the Interacoustics Titan device allowed us to study raw microphone recordings and corresponding absorbances obtained by WBT measurements. We investigated WBT measurements from normal hearing ears and ears with middle and inner ear pathologies for the presence of artifact and noise. Furthermore, it was used to develop an artifact mitigation procedure and to evaluate its effectiveness in mitigating artifacts without distorting the true WBT information. DOI : 10.1097/AUD.0000000000001117|1 Disponible en ligne : Oui En ligne : https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=J [...] Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=293192 [article]