Transient-evoked and distortion product otoacoustic emissions: A short-term test-retest reliability study.
Int J Audiol
; 49(2): 99-109, 2010 Feb.
Article
en En
| MEDLINE
| ID: mdl-20151884
Knowledge regarding the variability of transient-evoked otoacoustic emissions (TEOAEs) and distortion product otoacoustic emissions (DPOAEs) is essential in clinical settings and improves their utility in monitoring hearing status over time. In the current study, TEOAEs and DPOAEs were measured with commercially available OAE-equipment in 56 normally-hearing ears during three sessions. Reliability was analysed for the retest measurement without probe-refitting, the immediate retest measurement with probe-refitting, and retest measurements after one hour and one week. The highest reliability was obtained in the retest measurement without probe-refitting, and decreased with increasing time-interval between measurements. For TEOAEs, the lowest reliability was seen at half-octave frequency bands 1.0 and 1.4 kHz; whereas for DPOAEs half-octave frequency band 8.0 kHz had also poor reliability. Higher primary tone level combination for DPOAEs yielded to a better reliability of DPOAE amplitudes. External environmental noise seemed to be the dominating noise source in normal-hearing subjects, decreasing the reliability of emission amplitudes especially in the low-frequency region.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Emisiones Otoacústicas Espontáneas
Límite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Int J Audiol
Asunto de la revista:
AUDIOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Bélgica
Pais de publicación:
Reino Unido