CT测量成人正常耳廓相关夹角的研究

目的　探索一种客观、准确地测量耳廓夹角的方法。方法　于30例成人正常耳廓(共60只)，采用CT作经眶—耳平面的断层扫描，绘制成图后测量常用的3个夹角的角度，并进行统计分析。结果　显示成年人正常耳廓的颅—耳角为(45±14)度，颅—耳甲角为(83±13)度，耳甲—耳舟角为(92±4)度。左右对称。男女之间，女性的颅—耳角大于男性，颅—耳甲角、耳甲—耳舟角无显著差异。结论　用CT测量人类耳廓的相关夹角是一种无干扰、方便、准确的方法，对指导临床有一定的实际意义。

A study of measurement of normal adult ear angles with CT

Objective　To explore an objective and precise method of measuring the angles of human ears.Methods　Thirty cases (60 ears) were measured by CT.They were performed in position of Frankfort horizontal plane.Results　Auriculo-cranial is 45±14 degrees,cephaloconchal is 83±13 degrees,scaphaconchal is 92±4 degrees,and they are symmetric on both sides.The differences of the angles between men and women are not obvious,except auriculo-cranial angle.Conclusion　The measurement of human auricular angles with CT is a useful and practical method in anthropology and aesthetic medicine.