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介绍眼眶外伤CT扫描的操作技术及其临床效应;指出CT扫描对结构特别细致的骨折线,如纸板骨折影像的最大清晰度和对软组织具有高度的组织密度分辨力。CT扫描可以直接标定眶内异物的位置,骨折块的数目,移位的角度及方向。偶有轴位难以显示清晰的影像,可以用额位代替或相反,或两者都用。CT扫描比标准X射线断层不足之处是操作复杂,尤其对急诊病人的体位的要求严格造成不便,但新CT装置(第四代)生产以来逐渐得到改善,病人可以舒适地接受检查。
This paper introduces the operation technique and clinical effect of orbital trauma CT scan. It points out that the CT scan has the highest definition of tissue density for soft tissue, such as the maximal clarity of the cardboard fracture image and the detailed fracture line. CT scan can be directly calibrated orbital foreign body location, the number of fracture pieces, the displacement of the angle and direction. Occasional axial difficult to show a clear image, you can use the forehead instead of or the opposite, or both. The inadequacies of CT scans over standard X-ray tomography are complicated to manipulate, especially with the inconvenience of strict requirements on the posture of emergency patients. However, since the new CT unit (fourth generation) has been gradually improved in production, patients can be comfortably inspected.