眶内隐匿性骨折的CT诊断

CT Diagnosis of Occult Orbital Fracture

为探讨CT检查对眶内隐匿性骨折的诊断价值，对23例患者的临床及CT影像进行回顾性分析。所有病人均摄眼眶X线片和眼眶CT横断扫描，其中9例加扫眼眶冠状位。23例中，眶内壁骨折12例，底壁骨折9例，顶壁骨折2例。8例无直接骨折征象（约占34．8％）。由于CT检查对眶内隐匿性骨折的诊断具有特异性，放对有外伤史，临床怀疑有骨折，应常规行CT检查。

Absract: To evaluate the role of CT in diagnosis of occult orbital fracture. The clinical and CF findings in 23 patients with occult orbital fracture were analysed retrospectively. Both convetional X-ray film and CT image for the same orbit were performed. And additional CT scans in coranal section were made in 9 cases Of 23 cases with occult orbitial fracture, 12 in the medial orbital wall, 9 in the orbital floor, and 2 in the orbital top. Eight cases of negatively direct signs of orbital fracture (34. 8% ) were diagnosed by CT. CT is specific for diagnosis of occult orbital fracture. Once a history of orbital injury and an orbital fracture clinically suspected exist, CT scanning is recommended.