Use of custom-moulded earmoulds to improve repeatability of DPOAE map measurements.
| Autor: | McEnany FB; Geisel School of Medicine at Dartmouth, Lebanon, NH, USA., Norris JA; Creare LLC, Hanover, NH, USA., Fellows AM; Geisel School of Medicine at Dartmouth, Lebanon, NH, USA., Clavier OH; Creare LLC, Hanover, NH, USA., Meinke DK; University of Northern Colorado, Audiology and Speech-Language Hearing Sciences, Greeley, CO, USA., Rieke CC; Geisel School of Medicine at Dartmouth, Lebanon, NH, USA., Kline-Schoder R; Creare LLC, Hanover, NH, USA., Buckey JC; Geisel School of Medicine at Dartmouth, Lebanon, NH, USA. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | International journal of audiology [Int J Audiol] 2021 Jul; Vol. 60 (7), pp. 555-560. Date of Electronic Publication: 2020 Oct 12. |
| DOI: | 10.1080/14992027.2020.1828632 |
| Abstrakt: | Objective: Distortion product otoacoustic emission (DPOAE) mapping characterises cochlear function, can include both the 2f1-2f2 and 2f2-2f1 DPOAEs, and shows promise for tracking cochlear changes. DPOAE amplitude measurements are not as repeatable longitudinally as pure-tone audiometry, likely due in part to probe placement sensitivity. We hypothesised that DPOAE level map variation over multiple testing sessions could be minimised by replacing traditional rubber tips with custom-moulded probe tips. Design: Traditional rubber tips (TRT) and custom-moulded probes tips (CMPT) were used to measure DPOAE level maps repeatedly over five sessions. Probe placement was assessed using a frequency sweep in the ear canal. Repeatability of the DPOAE level maps was assessed using a Bland-Altman analysis. Overall map repeatability was assessed by measuring differences in distortion product amplitude over sessions. Study Sample: Crossover study with a convenience sample size of six adults. Results: The CMPT frequency sweeps showed reduced variability in probe placement. The repeatability coefficient for individual DPOAEs measurements improved from 6.9 dB SPL with the TRT to 5.1 dB SPL with the CMPT. Map repeatability improved for most subjects with the CMPT. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|