Etherington R J, Hourihan M D
Department of Diagnostic Radiology, University Hospital of Wales, Heath Park, Cardiff.
Clin Radiol. 1989 Nov;40(6):610-4. doi: 10.1016/s0009-9260(89)80320-4.
Accurate localisation of foreign bodies in the region of the orbit is vital for correct management. Fifteen patients with such foreign bodies are described. Computed tomography (CT) of the orbits proved accurate in differentiating extraocular and intraocular foreign bodies, and in localisation within the globe. If a foreign body is visible on a plain radiograph, axial 6 mm thick CT sections will demonstrate it in all cases. If plain radiographs are negative or equivocal, 3 mm thick CT sections are necessary. Coronal scans are of limited usefulness.
准确确定眼眶区域内的异物位置对于正确治疗至关重要。本文描述了15例有此类异物的患者。眼眶计算机断层扫描（CT）在区分眼外和眼内异物以及确定球内异物位置方面被证明是准确的。如果异物在平片上可见，6毫米厚的轴向CT断层扫描在所有情况下都能显示出来。如果平片结果为阴性或不明确，则需要3毫米厚的CT断层扫描。冠状面扫描的作用有限。
