audiogram

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audiogram

[′ȯd·ē·ō‚gram]
(acoustics)
A graph showing hearing loss, percent hearing loss, or percent hearing as a function of frequency.
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Audiograms characteristics Audiogram morphology Upward-sloping 10 (20%) Downward-sloping 24 (48%) Flat loss 16 (32%) Trough shaped 0 (0%) Hearing loss (based on average PTA) Mild (25-40 dB HL) 28 (56%) Moderate (41-55 dB HL) 6 (12%) Moderate-severe (56-70 dB HL) 2 (4%) Severe (71-90 dB HL) 9 (18%) Profound (>90 dB HL) 5 (10%) PTA: pure tone audiometry Table 3.
Data on the severity of the hearing loss, the audiogram type and the time from onset to treatment were recorded.
In the case of presented patients, although the notched audiograms at first indicated acoustic trauma, the localization and extent (in the Patient Two) of the acoustic notches was atypical.
It should be noted that in comparison with the unilateral counterpart, the BSSHL patients had significantly more descending-type audiograms ( ?
Classification of Audiogram. The audiogram was classified into 4 types by the method reported in[12].
The rest 39(8.71%) workers had sensorineural hearing loss, had a prominent notch at 4000 kHz on audiogram, confirming it to be noise induced.
Clinical audiograms completed at the Audiology Clinic at LRMC were obtained from AHLTA, and hearing readiness audiograms (ie, DD 2215 and DD 2216) were obtained from the DoEhRS-DR.
The NIOSH Occupational Hearing Loss Surveillance Project collects de-identified audiograms * for U.S.
Only 3 percent (n = 525) had no recorded audiograms in the DOEHRS-DR.
Pure-tone averages (PTAs) calculated as a mean at thresholds of 500, 1 000, 2 000 and 4 000 Hz from the uHear application were compared with the formal audiogram. uHear was able to correctly diagnose the presence of moderate or worse hearing loss (PTA >40 dB) in 100 participants, with a sensitivity of 98% and a specificity of 82% in the clinic.
[10] The initial shape of the audiogram has been found to have significant correlation with the extent of recovery.