Next 1. Motivation 2. Objectives 3. Diagnosis 3. Diagnosis (cont'd) 3. Diagnosis (cont'd) 6 of 17 3. Diagnosis (cont'd) 4.1 Passive prostheses 4.1 Passive prostheses (cont'd) 4.1 Passive prostheses (cont'd) 4.1 Passive prostheses (cont'd) 4.1 Passive prostheses (cont'd) 4.2 Passive amplification 4.3 Hearing aids and implants 5.1 Characterization of stimulus to inner ear 5.2 Otoacoustic emissions 7. References

3. Diagnosis (cont'd)

Infant tympanograms
Tympanograms from 156-day-old infant for three frequencies. Right ear (top) was normal, left ear (bottom) had middle-ear effusions and failed hearing screening test.
Dark lines = susceptance, light lines = conductance.
Units for horizontal axes (static pressure) = daPa, vertical axes = mmho.

Possibility of differential diagnosis by

but ...

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BMDE-501 Modelling middle-ear mechanics

R. Funnell
Last modified: Wed, 2009 Oct 28 17:47:28

Slide show generated from me_obj.html by Weasel 2009 Oct 29