摘要
对正常人60耳及分泌性中耳炎84耳,进行中耳共振频率和鼓室导抗图测试,显示正常人组中耳共振频率为814±164Hz,中耳积液组中耳共振频率为292±134Hz,中耳积液时,质量增大,要达到共振,共振频率必须向低频区移动。治愈后1~2个月,有38耳再进行多频率扫描,中耳共振频率为786±139Hz,与正常人组接近。分泌性中耳炎84耳中,鼓室导抗图分别为:B型69耳、C型10耳、A型5耳;而84耳中中耳共振频率有79耳<426Hz(积液组X+S)。在临床上,中耳共振频率的改变、B型鼓室导抗图,结合鼓膜改变,能更迅速。
Resonant frequency of midia ear and immittance of tympanometry were measured in 60 normal ears and 84 ears with middle ear effusion (MEE) Resonant frequency of middle ear in normals was 814±164Hz, while 292±136Hz in MEE At the presence of fluid in tympanic cavity mass increases, and in order to obtain resonance the resonant frequency has to shift to low frequency region After 1 to 2 months treatment, multifrequency scanning was conducted in 38 ears of cases with MEE The resonant frequency was 786±139Hz, approximate to normal The types of tympanogram in the 84 ears with MEE were: Type B 69 ears; Type C 10 ears and Type A 5 ears Among the 84 ears there were 79 ears the resonant frequency of which was lower than 426Hz Resonant frequency change of middle ear combined with the change of tympanometry can be clinically used for diagnosis of MEE more quickly and accurately
出处
《中国耳鼻咽喉颅底外科杂志》
CAS
1996年第2期82-84,共3页
Chinese Journal of Otorhinolaryngology-skull Base Surgery