Holmquist J, Björkman G, Olén L
Scand Audiol. 1981;10(1):33-5. doi: 10.3109/01050398109076159.
Sound transport through the Eustachian tube in normal ears has been recorded using sonotubometry (Virtanen, 1978). It was found that only 66% of the ears had sound transport through the tube when swallowing. Despite the fact that all ears had adequate aeration of the middle ear at the time of testing, 34% of the ears had no sound passage when swallowing. The explanation for this phenomenon is discussed. Also, it is concluded that this test may reflect Eustachian tube patency during swallowing--and not tubal function.
利用声管测量法（维塔宁，1978年）记录了正常耳朵中通过咽鼓管的声音传导情况。研究发现，吞咽时只有66%的耳朵有声音通过咽鼓管。尽管在测试时所有耳朵的中耳均有足够的通气，但34%的耳朵在吞咽时没有声音通过。文中讨论了这一现象的原因。此外，得出的结论是，该测试可能反映的是吞咽时咽鼓管的通畅情况——而非咽鼓管功能。
