【摘要】 目的研究具有正常听力的中国汉族年青人乳突气化面积。方法选择年龄在18～24岁间的汉族青年45人90耳,听力正常,排除耳鼻咽喉科疾病,对左右耳分别进行乳突劳氏位及伦氏位拍片,用自动求积仪(日本产PLANIXT求积仪)直接在X线片上计算出乳突气化面积。结果左耳劳氏位乳突气化面积xˉ±s为15.976±5.755cm2,伦氏位乳突气化面积xˉ±s为16.38±6.222cm2;右耳劳氏位乳突气化面积xˉ±s为15.898±4.938cm2,伦氏位乳突气化面积xˉ±s为16.377±5.931cm2。其中气化良好型占96.7%,气化不良型占3.3%。结论乳突气化面积的测量结果可供耳科临床参考。更多还原

【Abstract】 Objective To study the size of the mastoid air cell system in Chinese young people with normal audition. Methods We selected 45 Chinese people from eighteen to twenty-four years old, who had normal audition, without diseases of nose, throat and ear, obtained radiography of the mastoids in different views, then measure the size with digital planimeter. Results The size of left ear in Law’s projection was 15.976±5.755cm2(xˉ±s), and 16.38±6.222cm2 in Runstrum’s projection; the size of right ear in Law’s projection was 15.898±4.938cm2, and 16.377±5.931cm2 in Runstrum’s projection. 96.7% of them were well-developed, and others were underdeveloped. Conclusions The research of the size of mastoid can do help to the clinic.更多还原