Conclusion: it is helpful to pay attention to diagnosing the early signs and symptoms, appropriately re examine with CT scan and thin slice CT scan.
结论：注意早期征象，适时CT复查，以及薄层CT扫描对早期诊断有帮助。
Conclusion: in spiral ct simulator scan, using overlapping reconstruction with thin slice is advisable in determining gross target volume of tumor.
结论：在螺旋CT模拟扫描中，采用薄层的重叠重建在肿瘤靶区体积的制定中是切实可行的。
Materials and Methods: 31 trauma patients suspected of having facial fractures were examined with thin-slice ct scan and 3d reconstruction.
材料与方法：对临床诊断有骨折的31例颌面部外伤患者进行CT薄层扫描和3d重建。
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