Comparison of Eustachian tube function measured by the microflow method and a new quantitative impedance method.
Eustachian tube function in 25 applicants for flight training was tested during simulated flights using two methods alternately; the integrating microflow method with a stationary pressure chamber, and a new quantitative impedance method in combination with a new mobile pressure chamber. All ears were tested by both methods. The results of the various tests did not differ significantly between methods. The reliability of the measurements was good and almost equal in both methods. Several practical advantages with the new impedance method in combination with the mobile pressure chamber make it preferable.
D000158:Acoustic Impedance Tests / Q000295:instrumentation / Q000379:methods*; D000337:Aerospace Medicine; D000399:Air Pressure; D001273:Atmosphere Exposure Chambers; D005064:Eustachian Tube / Q000502:physiology*; D006801:Humans; D008297:Male; D012212:Rheology