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本文讨论了CT(计算机断层扫描摄影)在评价颌面部损伤中的作用。作者从1977年开始使用CT技术,并发现它特别有助于确定眶壁骨折,而中份损伤,以及由于喉头水肿而引起的上呼吸道潜在阻塞。作者应用的是EMI5005Ⅱ型全身CT扫描机。面中份损伤在面中份的骨折常常合并有严重的水肿,这使临床检查复杂化并可能掩盖水肿下面的骨骼损伤。骨损伤的程度和骨折碎片移位的范围常常只能以X线照片来判断。然而,由于解剖上的复杂性在常规X线片上辨认面中份骨折有时是困难的,因为
This article discusses the role of computed tomography (CT) in evaluating maxillofacial injury. The author used CT technology since 1977 and found that it was particularly helpful in identifying orbital fractures, intermediate lesions, and potential upper airway obstruction due to laryngeal edema. The author applied EMI5005 Ⅱ type CT scanner. In the face of moderate injury in the face of the fractures are often associated with severe edema, which makes the clinical examination complicated and may cover the underlying edema under the bone damage. The extent of bone damage and the extent of fracture fragments displacement can often only be judged by radiographs. However, it is sometimes difficult to identify a mid-face fracture on a conventional radiograph due to the anatomical complexity because