Academic Journal
Automated Adaptive Wideband Acoustic Reflex Threshold Estimation in Normal-hearing Adults
| العنوان: | Automated Adaptive Wideband Acoustic Reflex Threshold Estimation in Normal-hearing Adults |
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| المؤلفون: | Schairer, Kim S., Putterman, Daniel B., Keefe, Douglas H., Fitzpatrick, Denis, Garinis, Angela, Kolberg, Elizabeth, Feeney, M. Patrick |
| المصدر: | Ear & Hearing ; volume 43, issue 2, page 370-378 ; ISSN 1538-4667 |
| بيانات النشر: | Ovid Technologies (Wolters Kluwer Health) |
| سنة النشر: | 2021 |
| الوصف: | Objectives: Acoustic stapedius reflex threshold (ART) tests are included in a standard clinical acoustic immittance test battery as an objective cross-check with behavioral results and to help identify site of lesion. In traditional clinical test batteries, middle-ear admittance of a 226 Hz probe is estimated using ear-canal measurements in the presence of a reflex-activating stimulus. In the wideband (WB) acoustic immittance ART test used in this study, the pure-tone probe is replaced by a WB probe stimulus and changes in absorbed power are estimated using ear-canal measurements in the presence of the activator. The ART is defined as the lowest level at which a criterion change in admittance (clinical) or absorbed power (WB) is observed in the presence of the activator. In the present study, ARTs were obtained in adults with normal hearing using the clinical, manual method and with a new WB automated adaptive threshold detection method. It was hypothesized that the WB test would result in lower ARTs than the clinical test because reflex-related changes in power absorbance could be observed across multiple frequency bands in the WB test compared with a single frequency in the traditional test. Design: Data were collected in a prospective research design. ARTs were obtained in ipsilateral and contralateral conditions using 500, 1000, 2000 Hz, and broadband noise (BBN) activators on a clinical system and on an experimental WB system. The bandwidth of the BBN activator was 125 to 4000 Hz on the clinical system and 200 to 8000 Hz on the wideband system. ARTs were estimated at both tympanometric peak pressure (TPP) and ambient pressure on the WB system. Data were collected in both ears of 39 adults (21 males) of mean age 47.7 years (range 23–72 years). Differences in ARTs among the three threshold estimation methods (clinical, WB at TPP, WB at ambient) were examined using the general linear model repeated measures test in SPSS. Post-hoc pairwise comparisons were completed with Bonferroni correction for multiple ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1097/aud.0000000000001102 |
| DOI: | 10.1097/AUD.0000000000001102 |
| الاتاحة: | http://dx.doi.org/10.1097/aud.0000000000001102 https://journals.lww.com/10.1097/AUD.0000000000001102 |
| رقم الانضمام: | edsbas.3B2E4438 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1097/aud.0000000000001102 |
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