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目的研究眶内壁纸样板变异的CT表现及其与骨折的鉴别。方法收集自2006～2007年行颅脑及眶部CT检查的病例。选择无眶部外伤病史而出现纸样板改变或虽有眶部外伤并眶内壁改变但除外骨折的192例患者,设为病例组;选取有头面部外伤史并确诊为纸样板骨折的部分病例,设为对照组,分析各种征象在两者鉴别方面的价值。结果人群中眶内壁变异的概率为1.78%;两侧眼眶的眶内壁变异率不具有显著性差异(P>0.05)。两组在眶内壁内陷(成角内陷和弧形凹陷)方面具有显著性差异(P<0.05),而在纸样板缺损方面不具有显著性差异(P=0.649)。结论研究结果提高了眶内壁纸样板变异的认识,对临床医学和法医学的鉴别具有重要意义。
Objective To study CT manifestations of orbital wall paper variation and its identification with fractures. Methods From 2006 to 2007, the cases of brain and orbital CT examination were collected. 192 patients with or without orbital trauma and orbital wall changes except for the history of orbital trauma were selected as the case group. Some cases with a history of head and facial trauma and the diagnosis of paper model fracture were selected, Set as a control group, analyze the value of various signs in the identification of the two. Results The probability of orbital wall variation in the population was 1.78%. There was no significant difference in orbital wall variability between the two orbits (P> 0.05). There was a significant difference between the two groups (P <0.05) in invagination of the orbital wall (angulation and sagittal depression), but no significant difference in paper defect (P = 0.649). Conclusions The findings improve the understanding of orbital wall pattern variation and are of great importance for the identification of clinical medicine and forensic science.