Swartz J D, Wolfson R J, Marlowe F I, Popky G L, Vernose G V, Mauriello A J, Hampel A
Laryngoscope. 1985 Jul;95(7 Pt 1):841-5.
Dysplasias of the external auditory canal can be evaluated with high resolution CT using proper technique. Images are studied to determine the type of atresia (membranous or bony) and the thickness of the associated atretic plate (if present). Other findings sought include the degree of pneumatization, the status of the fenestrae, the size of the tympanic cavity, and the location of both the mandibular condyle and the facial nerve canal.
外耳道发育异常可通过采用适当技术的高分辨率CT进行评估。研究图像以确定闭锁的类型（膜性或骨性）以及相关闭锁板的厚度（如果存在）。其他需要寻找的发现包括气化程度、窗的状态、鼓室大小以及下颌髁突和面神经管的位置。
