A new eustachian tube function test using photodiode. Phototubometry.:-Phototubometry-
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概要
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A new method was developed to observe active patency of the eustachian tube using a photodiode.A highly sensitive silicon photodiode inserted in the external ear canal detects light traveling through the eustachian tube during active opening from a flexible fiber-scope placed at the pharyngeal orifice. The signal from the photodiode is superimposed on the picture of the pharyngeal portion of the tube displayed on a TV monitor from the fiberscope.This method was applied in 21 normal subjects and 5 patients with middle ear disorders and found to be useful in evaluating the opening function of the eustachian tube and clarifying the pathophysiology of middle ear disorders.
- 耳鼻咽喉科臨床学会の論文
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