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病例男,1岁,因双侧外耳廓形态较小且有畸形,双侧外耳道狭窄就诊。电测听提示双侧传导性耳聋。应用GE 64层螺旋CT扫描机行颞骨CT扫描,扫描时设置为骨窗观察,窗宽、窗位分别设置为4000HU、700HU,层厚0.625mm,重叠0.3mm,分别以双侧中耳为中心,FOV设置为9.6cm,行靶重
Case of male, 1 year old, due to the bilateral outer ear shape smaller and deformity, bilateral external auditory canal stenosis. Electrical audiometry prompted bilateral conductive deafness. Application of GE 64-slice spiral CT scanner for temporal bone CT scan, set to bone window scanning scan, window width, window level were set to 4000HU, 700HU, layer thickness 0.625mm, overlap 0.3mm, respectively, in both sides of the middle ear as the center , FOV set to 9.6cm, row target weight