Electroacoustic evaluation of the bone conduction transducer B250 for vestibular and hearing diagnostics in comparison with Radioear B71 and B81

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Fältnamn	Indikatorer	Metadata
000		04013naa a2200469 4500
001		oai:gup.ub.gu.se/339144
003		SwePub
008		240711s2024 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
009		oai:research.chalmers.se:8afcd67f-e097-4f49-9d11-4405ba6cc6e0
009		oai:prod.swepub.kib.ki.se:158198853
024	7	a https://gup.ub.gu.se/publication/3391442 URI
024	7	a https://doi.org/10.1080/14992027.2024.23520542 DOI
024	7	a https://research.chalmers.se/publication/5412302 URI
024	7	a http://kipublications.ki.se/Default.aspx?queryparsed=id:1581988532 URI
040		a (SwePub)gud (SwePub)cthd (SwePub)ki
041		a eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Fredén Jansson, Karl-Johan,d 1988u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)karljohf
245	1 0	a Electroacoustic evaluation of the bone conduction transducer B250 for vestibular and hearing diagnostics in comparison with Radioear B71 and B81
264	1	c 2024
520		a ObjectiveThe objective is to evaluate the electroacoustic performance of the B250 transducer and to compare it with the two most widely used audiometric transducers B71 and B81.DesignThe electroacoustic performance was evaluated in terms of sensitivity level, distortion, maximum hearing level and electrical impedance.Study sampleSix B250 prototype transducers were evaluated and compared with published data of B71 and B81 together with complementary measurements of maximum hearing level at 125 Hz and phase of electrical impedance. Differences in reference equivalent threshold vibratory force levels were estimated by comparing hearing threshold measurements of 60 healthy ears using B81 and B250.ResultsB250 has approximately 27 dB higher sensitivity levels than both B71 and B81 at 250 Hz and can generate higher maximum hearing level at low frequencies: 11.8 to 35.8 dB (125-1000 Hz) higher than B71, and 1.4 to 18.6 dB (125-750 Hz) higher than B81. The maximum average difference in reference threshold force levels was 13.5 +/- 8.7 dB higher for B250 at 250 Hz compared to B81.ConclusionsB250 can produce higher output force with less distortion than B71 and B81, especially at 125 and 250 Hz, which could possibly improve low frequency investigations of the audio-vestibular system.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Oto-rhino-laryngologi0 (SwePub)302182 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Otorhinolaryngology0 (SwePub)302182 hsv//eng
653		a Audiometry
653		a bone conduction
653		a vestibular
653		a dizziness
653		a vertigo
653		a Audiometry
700	1	a Håkansson, Bo,d 1953u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)boh
700	1	a Persson, Ann-Charlotte,d 1970u Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för öron-, näs- och halssjukdomar,Institute of Clinical Sciences, Department of Otorhinolaryngology,University of Gothenburg,Västra Götalandsregionen,Region Västra Götaland4 aut0 (Swepub:gu)xpannc
700	1	a Verrecchia, Luca,d 1971u Karolinska Institutet4 aut0 (Swepub:cth)lucav
700	1	a Reinfeldt, Sabine,d 1978u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)f97sare
710	2	a Chalmers tekniska högskolab Institutionen för kliniska vetenskaper, Avdelningen för öron-, näs- och halssjukdomar4 org
773	0	t INTERNATIONAL JOURNAL OF AUDIOLOGYx 1499-2027x 1708-8186
856	4	u https://research.chalmers.se/publication/541230/file/541230_Fulltext.pdfx primaryx freey FULLTEXT
856	4 8	u https://gup.ub.gu.se/publication/339144
856	4 8	u https://doi.org/10.1080/14992027.2024.2352054
856	4 8	u https://research.chalmers.se/publication/541230
856	4 8	u http://kipublications.ki.se/Default.aspx?queryparsed=id:158198853

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Av författaren/redakt...: Fredén Jansson, ...; Håkansson, Bo, 1 ...; Persson, Ann-Cha ...; Verrecchia, Luca ...; Reinfeldt, Sabin ...

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Oto rhino laryng ...

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Av lärosätet: Göteborgs universitet; Chalmers tekniska högskola; Karolinska Institutet

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