大前庭导水管综合征的64层螺旋CT诊断探讨

Discussion on 64-Slice Spiral CT Diagnosis of Large Vestibular Aqueduct Syndrome

目的:探讨64层螺旋CT在诊断大前庭导水管综合征的应用,以提高诊断正确率。方法:44例大前庭导水管综合征患者均行颞骨轴位薄层扫描,必要时行冠状位及斜矢状位重建。并对患者64层螺旋CT影像学表现进行分析。结果:在CT图像上44例患者,86耳(左42耳、右44耳),均不同程度显示前庭或总脚层面岩骨后缘骨质缺损影,部分骨质缺损影与前庭或总脚直接相通,前庭导水管外口和中间段宽度超过1.5 mm。结论:CT颞骨轴位薄层高分辨扫描对大前庭导水管综合征患者明确诊断具有重要临床价值,是其首选、常规的检查方法。

Objective：To discuss application of 64 slice spiral CT diagnosis of large vestibular aqueduct syndrome in order to improve diagnostic accuracy.Methods：44 patients with large vestibular aqueduct syndrome were all carried out temporal bone axial thin slice scan,coronal and oblique sagittal reconstruction if needed.And 64 slice spiral CT imaging findings of patients with large vestibular aqueduct syndrome were analyzed.Results：In CT images of 44 patients,86 ears（left ear of 42,right ear of 44） have varying degrees of showed vestibular or total foot dimensions of petrous bone posterior marginal osseous defect,bone defect and vestibular or total foot connected directly,the external aperture of vestibular aqueduct and the intermediate segment width greater than 1.5mm.Conclusion：There is an important clinical value of CT axial thin layer high resolution of temporal bone scanning to clarify a diagnosis of large vestibular aqueduct syndrome,which is the preferred,regular inspection method.