HRCT诊断眼眶底壁骨折

目的 :探讨高分辨力CT(HRCT)诊断眼眶底壁骨折的临床价值。材料和方法 :对 10 5例眼钝力伤患者进行横断 冠状高分辨力CT扫描 ,进行图像对比分析。结论 :10 5例患者中 41例有眼眶底壁骨折 ,其中眶内下壁骨折 15例 ,眶下沟骨折 16例 ,眶底前缘骨折 10例。合并眶内容物疝出 2 5例 ,窦口—鼻道复合体狭窄 4例 ,眶下神经管或眶下孔骨折 5例 ,鼻泪管骨折 2例。结论 :HRCT冠状扫描显示眼眶底壁骨折优于横断扫描。眼眶底壁骨折HRCT诊断除应仔细观察骨折类型以外 ,还应充分估计眶下神经、窦口—鼻道复合体及鼻泪管的损伤情况 ,为临床制定治疗方案及预后提供有利依据。

HRCT in the Diagnosis of Orbital Floor Fractures

Purpose:To evaluate the ability of HRCT in the diagnosis of orbital floor fractures.Materials and Methods:Coronal and axial HRCT scans were performed on 105 patients with eye trauma, and the CT features were retrospectively compared and analyzed.Results: In all 105 patients, HRCT scans showed that orbital floor fracture was in 41 patients. Among 41 cases, there were 15 cases with compound fractures in medial wall and 16 cases inferior wall with infraorbital groove fractures, 10 with orbital floor rim fractures, 25 with herniation of the orbital soft tissue, 4 with stenosis of nasal meatus or antro-oral fistula, and 5 with infraorbital canal fracture.Conclusion: Coronal HRCT scans is superior to axial HRCT in the display of orbital floor fractures. Besides detecting the location and type of orbital floor fractures, we should also note the lesions of infraobital nerve, nasolacrimal duct, and compound of nasal meatus and antro-oral fistula. It is a useful imaging modality for planning clinical treatment and evaluating prognosis.