Automated Smartphone Audiometry: A Preliminary Validation of a Bone-Conduction Threshold Test App

2019 ◽  
Vol 128 (6) ◽  
pp. 508-515 ◽  
Author(s):  
Nicholas A. Dewyer ◽  
Patpong Jiradejvong ◽  
David S. Lee ◽  
Jacquelyn D. Kemmer ◽  
Jennifer Henderson Sabes ◽  
...  
Keyword(s):  
Pure Tone ◽  
Bone Conduction ◽  
Proof Of Concept ◽  
Threshold Test ◽  
Bone Conduction Threshold ◽  
Preliminary Validation ◽  
Hearing Thresholds ◽  
English Speaking ◽  
Contralateral Ear ◽  
Threshold Testing

Objective: To develop and validate an automated smartphone app that determines bone-conduction pure-tone thresholds. Methods: A novel app, called EarBone, was developed as an automated test to determine best-cochlea pure-tone bone-conduction thresholds using a smartphone driving a professional-grade bone oscillator. Adult, English-speaking patients who were undergoing audiometric assessment by audiologists at an academic health system as part of their prescribed care were invited to use the EarBone app. Best-ear bone-conduction thresholds determined by the app and the gold standard audiologist were compared. Results: Forty subjects with varied hearing thresholds were tested. Sixty-one percent of app-determined thresholds were within 5 dB of audiologist-determined thresholds, and 79% were within 10 dB. Nearly all subjects required assistance with placing the bone oscillator on their mastoid. Conclusion: Best-cochlea bone-conduction thresholds determined by the EarBone automated smartphone audiometry app approximate those determined by an audiologist. This serves as a proof of concept for automated smartphone-based bone-conduction threshold testing. Further improvements, such as the addition of contralateral ear masking, are needed to make the app clinically useful.

scholarly journals A study to assess hearing improvement after fat graft myringoplasty

2021 ◽  
Vol 7 (2) ◽  
pp. 303
Author(s):  
Nupur Midha ◽  
Gurbax Singh ◽  
Rachna Dhingra ◽  
Rajwant Kaur
Keyword(s):  
Pure Tone ◽  
Bone Conduction ◽  
Pure Tone Audiometry ◽  
Threshold Level ◽  
Fat Graft ◽  
Hearing Improvement ◽  
Suppurative Otitis Media ◽  
Bone Conduction Threshold ◽  
Tympanic Membrane Perforations ◽  
Number Of Patients

<p class="abstract"><strong>Background:</strong> Tympanic membrane perforations result mainly from infectious and traumatic etiologies. Postoperative outcomes of reconstructive surgeries of hearing mechanism have routinely been assessed by take up rates and air bone gap closure on pure tone testing. The present study was conducted to assess hearing improvement after fat graft myringoplasty.</p><p class="abstract"><strong>Methods:</strong> The present prospective study was conducted from 1<sup>st</sup> January 2017 to 30<sup>th</sup> June 2018. The study population consists of patients of age 18 to 60 years. The subjects with safe or tubotympanic type of chronic suppurative otitis media with small dry central perforation or perforation of the pars tensa less than 3 mm were included in the study. Pure tone audiometry (PTA) was consigned to an audiologist who was blind to the study. Air conduction threshold level was measured at frequencies 0.25 to 8 kHz and bone conduction threshold level was measured at frequencies 0.5 to 4 kHz; average air bone gap of each patient was calculated preoperatively and postoperatively at one and three months at the frequencies 500 Hz, 1000 Hz and 2000 Hz.  </p><p class="abstract"><strong>Results:</strong> Among 30 patients, 15 (50.00%) had pre-operative bone conduction threshold in the range of 0-10 dB HL and rest 15 (50.00%) had between 11-20 dB HL. Majority of them i.e. 20 had post-operative air bone gap in the range of 0-10 dB HL whereas 02 had pre op air bone gap in this range, followed by 07 with air bone gap in the range of 11-20 dB HL as compared to 18 in the pre op and 03 in the range of 21-30 dB HL as compared to 10 in the pre op. Paired t test reveals results are significant.</p><p class="abstract"><strong>Conclusions:</strong> Postoperative audiometry at the end of 1 month revealed majority i.e. 14 had air bone gap in range of 0-10 dB HL thus showing improvement in hearing. Postoperative audiometry at the end of 3 months revealed maximum number of patients i.e. 20 in the range of 0-10 dB HL which showed further improvement in hearing in the form of decrease in air bone gap.</p><p class="Default"> </p>

scholarly journals Objective Estimation of Frequency-Specific Pure-Tone Hearing Thresholds following Bone-Conduction Hearing Aid Stimulation

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Torsten Rahne ◽  
Thomas Ehelebe
Keyword(s):  
Pure Tone ◽  
Auditory Evoked Potentials ◽  
Bone Conduction ◽  
Hearing Threshold ◽  
Mixed Hearing Loss ◽  
Hearing Thresholds ◽  
Bone Conduction Hearing ◽  
Highly Correlated ◽  
Fitting In ◽  
Hearing System

Patients suffering from conductive or mixed hearing loss may benefit from bone-conduction hearing systems (BAHS). The amount of amplification provided by the hearing system is selected based on the individual’s sensorineural frequency-specific threshold. With patients who are not able to provide thresholds behaviorally, such as young children, objective methods are required to estimate the unaided and aided hearing threshold and thus the success of the hearing system fitting. In a prospective study with ten adult Baha softband users, aided and unaided frequency-specific thresholds were estimated. Aided thresholds to tone bursts via Baha stimulation were obtained behaviorally and electrophysiologically using cortical auditory evoked potentials (CAEPs) and were compared to pure-tone thresholds using routine clinical audiometry. For all stimulation frequencies, the frequency-specific electrophysiological and behavioral hearing thresholds measured with Baha stimulation were highly correlated and not different. Increased thresholds were observed only with the 0.5 kHz Baha stimulation as compared to the pure-tone audiogram. Objective measurement of frequency-specific hearing thresholds with CAEPs is applicable to BAHS users.

Tympanoscopy to increase the accuracy of diagnosis in conductive hearing loss

1998 ◽  
Vol 112 (2) ◽  
pp. 154-157 ◽  
Author(s):  
Tapio S. Karhuketo ◽  
Heikki J. Puhakka ◽  
Pekka J. Laippala
Keyword(s):  
Decision Making ◽  
Hearing Loss ◽  
Pure Tone ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Speech Discrimination ◽  
Bone Conduction Threshold ◽  
Pure Tone Average ◽  
Stapedial Reflex ◽  
Conductive Hearing

AbstractThe diagnosis of conductive hearing loss is usually based on audiological methods and radiology. The aim of our study was to show that there is a useful additive method to clarify the findings of diseases with conductive hearing loss.Patients (151 ears) with conductive hearing loss were examined using several methods: otomicroscopy, air- and bone-conduction threshold, pure tone average, speech threshold, speech discrimination, tympanometry and stapedial reflex and tympanoscopy.The management of the patients changed in 17 per cent of cases due to tympanoscopy. In a group with normal tympanic membrane the movement of the stapes during endoscopy was compared to stapedial reflex. Stiff stapes were found more often than an abnormal stapedial reflex.Middle ear endoscopy can increase the accuracy of diagnosis of conductive hearing loss thus enhancing decision making in the case of the patient.

Comparing intermediate-term hearing results of NiTiBOND and Nitinol prostheses in stapes surgery

2021 ◽  
pp. 1-4
Author(s):  
A Koukkoullis ◽  
I Gerlinger ◽  
A Kovács ◽  
Z Szakács ◽  
Z Piski ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Clinical Success ◽  
Bone Conduction ◽  
Hearing Results ◽  
Bone Conduction Threshold ◽  
Hearing Thresholds ◽  
Group 3 ◽  
Group 2 ◽  
Air Conduction

Abstract Objective To statistically analyse the hearing thresholds of two cohorts undergoing stapedotomy for otosclerosis with two different prostheses. Method A retrospective study was conducted comparing NiTiBOND (n = 53) and Nitinol (n = 38) prostheses. Results Average follow-up duration was 4.1 years for NiTiBOND and 4.4 years for Nitinol prostheses. The post-operative air–bone gap was 10 dB or less, indicating clinical success. The p-values for differences between (1) pre- and post-operative values in the NiTiBOND group, (2) pre- and post-operative values in the Nitinol group, (3) pre-operative values and (4) post-operative values in the two groups were: air–bone gap – p < 0.001, p < 0.001, p = 0.631 and p = 0.647; four-frequency bone conduction threshold – p = 0.076, p = 0.129, p < 0.001 and p = 0.005; four-frequency air conduction threshold – p < 0.001, p < 0.001, p = 0.043 and p = 0.041; three-frequency (1, 2 and 4 kHz) bone conduction threshold pre-operatively – p = 0.639, p = 0.495, p = 0.001 and p = 0.01; and air conduction threshold at 4 kHz: – p < 0.001, p < 0.001, p = 0.03 and p = 0.058. Conclusion Post-operative audiological outcomes for NiTiBOND and Nitinol were comparable.

Calibration Force Levels for Bone Conduction Vibrators

1977 ◽  
Vol 20 (4) ◽  
pp. 653-660 ◽  
Author(s):  
Bradley L. Billings ◽  
Margaret Winter
Keyword(s):  
Young Adults ◽  
Pure Tone ◽  
Sound Pressure ◽  
Bone Conduction ◽  
Normal Hearing ◽  
National Standards ◽  
International Electrotechnical Commission ◽  
Bone Conduction Threshold ◽  
Air Conduction ◽  
Good Agreement

Two bone conduction vibrators (Radioear B71 and B72) and a headband (Radioear P-3333) have been developed to meet specifications of both the International Electrotechnical Commission and the American National Standards Institute. Pure-tone thresholds for air conduction and bone conduction were obtained from 24 normal-hearing young adults at audiometric frequencies between 250 and 4000 Hz. Results of this study are in good agreement with the standard air conduction threshold sound pressure levels (ANSI) and with bone conduction threshold force levels reported in the literature.

scholarly journals Comparative Study on Method of Threshold Estimation: Distortion Product Threshold Test versus Pure Tone Threshold Test

2020 ◽  
Vol 3 (02) ◽  
pp. 077-081
Author(s):  
Gunjan Mehta ◽  
Anuj Kumar Neupane ◽  
Abhishek Mistri ◽  
Hiral Joshi ◽  
Nirmit Shah
Keyword(s):  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Threshold Estimation ◽  
Hearing Sensitivity ◽  
Threshold Test ◽  
Distortion Product ◽  
Hearing Thresholds ◽  
Significant Difference ◽  
Left And Right ◽  
Neonates And Infants

Abstract Introduction Distortion product otoacoustic emissions (DPOAEs) can be helpful in estimating the hearing thresholds by extrapolating the DPOAE input/output function with the help of scissor paradigm, and thus the following study aims at assessing its reliability by comparing DPOAE thresholds with those obtained by behavioral responses at pure tones on various frequencies. Materials and Methods Fifty participants having normal hearing sensitivity were included in the study. Pure tone (PT) audiometry was carried out on all participants to determine PT thresholds in both ears. DPOAE threshold test was administered and thresholds at 1, 2, 4, and 8 kHz were compared accordingly. Results The result indicated significant difference between the two methods of threshold estimation where the mean difference was found to be 3 decibel (dB) and 4 dB for left and right ears, respectively. Shapiro-Wilk test revealed normal distribution (p > 0.05) of the data. Hence, parametric paired t-test was performed, which revealed significant difference between PT and distortion product thresholds. Conclusion Study concludes as having good clinical applicability in assessing neonates and infants.

scholarly journals Extended high-frequency audiometry in healthy adults with different age groups

2021 ◽  
Vol 50 (1) ◽  
Author(s):  
Mingming Wang ◽  
Yu Ai ◽  
Yuechen Han ◽  
Zhaomin Fan ◽  
Peng Shi ◽  
...  
Keyword(s):  
High Frequency ◽  
Pure Tone ◽  
Bone Conduction ◽  
Hearing Threshold ◽  
Healthy Population ◽  
Age Group ◽  
Hearing Ability ◽  
Hearing Thresholds ◽  
High Frequency Audiometry ◽  
Air Conduction

Abstract Background It was well-documented that extended high-frequency (EHF, above 8 kHz) hearing test could be more sensitive comparing with the conventional measurement on frequency below 8 kHz, regarding the early prediction of auditory damage in certain population. However, hardly any age-specific thresholds of EHF in population with normal hearing ability were observed. This study aims to monitor the age-dependent hearing thresholds at EHF (from 9 to 20 kHz) in healthy hearing population. Methods A total of 162 healthy participants (from 21 to 70 years) with normal conventional pure tone audiograms were recruited and separated into five groups by age. Conventional pure tone average was performed with frequencies from 0.25 to 8 kHz under air conduction and from 0.25 to 4 kHz under bone conduction. EHF audiometry from 9 to 20 kHz was determined under air conduction. Results The effects of aging on hearing were evident at frequencies above 4 kHz. The hearing thresholds of EHF were less than 26 dB HL before 30 years-olds. Hearing abilities in EHF were deteriorated starting from the 31 ~ 40 group and were most obvious in the 51 ~ 60 group and the 61 ~ 70 group with the maximum thresholds of 75 dB HL. Sensitivity of EHF was inversely proportional to the frequency within each age group, and to age among groups. Subjects under 30 years old were totally responsive up to 16 kHz, and 52.2% could respond to 20 kHz. Meanwhile, no responsiveness was recorded to 20 kHz in the 51 ~ 60 group and even to 18 kHz in the 61 ~ 70 group. No gender differences in hearing threshold was observed within each age group, except an obvious decline at frequencies of 4, 6, 8, and 9 kHz in male participants of the 41 ~ 50 group. Conclusions Hearing thresholds at EHF from 9 to 20 kHz were more sensitive than at frequencies below 8 kHz for hearing measurement, and aging inversely affected hearing ability at EHF in healthy population. Hearing thresholds at EHF deteriorated with age and raising frequency, while the upper frequency limit decreased with aging. Graphical abstract

scholarly journals Hearing Thresholds of Nigerian Navy Personnel Serving in Lagos Area

2021 ◽  
Author(s):  
Abubakar O Aliyu ◽  
Waheed A Adedeji ◽  
Adekunle Daniel ◽  
Tajudeen Yusuf ◽  
Paul A Onakoya ◽  
...  
Keyword(s):  
Hearing Impairment ◽  
Pure Tone ◽  
Past History ◽  
Pure Tone Audiometry ◽  
Work Place ◽  
Cross Sectional ◽  
Pure Tone Average ◽  
Hearing Thresholds ◽  
The Right ◽  
Navy Personnel

Abstract Introduction: Navy personnel are exposed to several risk factors that increase hearing thresholds and impair hearing. The aim of the study was to determine the prevalence of hearing impairment among Nigerian Navy personnel. Materials and Method: This was a cross sectional study of Nigerian Navy personnel working in various ships. Structured, self-administered questionnaire was used to obtain information on hearing. All the subjects had ear examination and pure tone audiometry of both ears. Results: The prevalence of hearing impairment was 22(14.7%) in the right and 17(11.3%) in the left ears. The Pure Tone Average for the right and left ear were 19.0±8.6dB and 17.4±6.7dB respectively. There was a statistically significant association between noisy work place and total hearing loss (p<.01), pure tone average in the left ear (p<.05) and frequencies of 3000 Hz (p<.05), 2000 Hz (p<.001) and 1000Hz (p<.05) in the left ear. The association between past history of ear infections and pure tone average in the left ear (p<.05) and the frequency 2000 Hz (p<.005) in the left ear were significant. The length of service years, occupational group, age, sex report of change in hearing, non-use of hearing protection and presence of tinnitus did not show significant association with pure tone averages nor on the frequencies tested. Conclusion: The significant unilateral hearing impairment on the right ear suggests the need for more research on hearing impairment in the Nigerian Navy as well as development of a comprehensive hearing conservation programme.

scholarly journals Pure tone hearing thresholds and leisure noise: Is there a relationship?

2015 ◽  
Vol 17 (78) ◽  
pp. 358 ◽  
Author(s):  
Warwick Williams ◽  
Lyndal Carter ◽  
Mark Seeto
Keyword(s):  
Pure Tone ◽  
Hearing Thresholds

Conductive SISI Test

1974 ◽  
Vol 83 (1) ◽  
pp. 125-127 ◽  
Author(s):  
Vincent W. Byers
Keyword(s):  
Hearing Loss ◽  
Middle Ear ◽  
Statistical Difference ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Sensitivity Index ◽  
Index Test ◽  
Bone Conduction Threshold ◽  
Conductive Hearing

The conductive SISI (short increment sensitivity index) test is an indirect procedure to estimate bone-conduction thresholds for middle ear pathology patients. A series of SISI tests are run, beginning at 20 dB S.L. and increasing in 10 dB S.L. steps, until a 100% SISI score is obtained. The following equation predicts the bone-conduction threshold: [Formula: see text] The results of 25 conductive SISI tests on a conductive hearing loss group indicate that the equation approximates the measured B.C. threshold. There was no statistical difference between the predicated B.C. thresholds (12.4 dB) and measured B.C. thresholds (10.4 dB) for the group.

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