Auditory threshold evaluation by distortion-product oto-acoustic emissions using decision support system.
Distortion-product oto-acoustic emissions (DPOEs) were measured in 102 normal-hearing and hearing-impaired ears to examine the sensibility, specificity, positive predictive value and negative predictive value of this test in a real clinical setting using two decision support systems. The first model only considered the presence or the absence of DPOEs in response to a 52 dB SPL stimulation intensity. The second model used two consecutive tests: i) the presence or the absence of DPOEs in response to a 52 dB SPL stimulation intensity, and ii) evaluation of the slope of each DPOE input-output function. The sensitivity of these two models varied between 1 and 0.83 whereas the specificity varied between 0.95 and 0.72 as a function of the frequency tested. The first model proved to be a very sensitive test, but the introduction of a second criterion of decision (i.e., the slope of DPOE input-output function) did not enhance the validity of the test.
Bonfils
P
P
ENT Department, University René Descartes, Faculty Necker Enfants Malades, Hospital Boucicaut, Paris, France.
Avan
P
P
Elbez
M
M
Deys
S
S
Erminy
M
M
François
M
M
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001299:Audiometry; D001307:Auditory Perception / Q000502:physiology*; D001309:Auditory Threshold / Q000502:physiology*; D003051:Cochlea / Q000502:physiology*; D003661:Decision Support Techniques; D005069:Evaluation Studies as Topic; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005583:Fourier Analysis; D006309:Hearing / Q000502:physiology*; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D012022:Reflex, Acoustic / Q000502:physiology; D012680:Sensitivity and Specificity; D013997:Time Factors