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随着高分辨 CT(HRCT)机及螺旋 CT(SCT)机的问世 ,CT在耳部疾病诊断中的应用价值和应用范围越来越大 ,现将有关文献综述如下。1 技术要求 颞骨的解剖结构精细复杂 ,要求扫描装置的空间分辨力小于 1 mm,扫描层厚小于 1～ 2 mm。HRCT一般采用横断面以及冠状面扫描。要求扫描装
With the advent of high resolution CT (HRCT) and spiral CT (SCT) machines, the value and application range of CT in the diagnosis of ear diseases are increasing. The relevant literature is summarized as follows. 1 Technical Requirements The anatomy of the temporal bone is very complex and requires the spatial resolution of the scanning device to be less than 1 mm and the scanning layer thickness to be less than 1 to 2 mm. HRCT generally use cross-sectional and coronal scan. Request scanning equipment