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本文共收治非金属眼内异物64例,占同期住院眼内异物总数的8%。其中采用 X 线作为主要检检查手段者共50例,能在 X 线片上显影者共37例,显影率为74%。采用 X 线诊断非金属眼内异物时,应常规拍眼眶的正、侧位照片,如未发现异物但病史怀疑有异物存留者,应进一步作薄骨影及无骨影照片,这样可提高异物的显影率。非金属眼内异物在 X 线上显影时具有以下特点:1.异物的影象密度偏低,接近眶骨的密度,需在强光下才易发现。2.异物影象的密度不会因异物的增大而有明显的增加。3.正位及侧位片上异物影象的密度常有明显的差别。4.异物影象本身有密度不均匀现象。5.异物影的边界比较模糊。
This article treated a total of 64 cases of non-metallic intraocular foreign body, accounting for 8% of the total number of intraocular foreign bodies in the same period. Among them, 50 cases were examined by X-ray as the main examination method, 37 cases were able to develop on X-ray film, and the developing rate was 74%. X-ray diagnosis of non-metallic intraocular foreign body, the eyes should be routinely taken on the side and lateral photographs, if no foreign body but history of suspected foreign body retention should be further thin bone shadow and boneless shadow photo, which can improve the foreign body Of the development rate. Non-metallic intraocular foreign body in the X-ray development has the following characteristics: 1. foreign body image density is low, close to the density of the orbital bone, need to be found in bright light. 2. Foreign body image density will not increase due to foreign bodies increased significantly. 3. Orthographic and lateral images of foreign body images often have significant differences in density. 4. Foreign body image itself has the phenomenon of uneven density. 5. foreign body shadow more fuzzy.