197例鼻窦炎螺旋CT扫描结果分析及临床意义

目的：用高分辨率CT对鼻窦炎进行影像学分析，探讨窦口鼻道复合体（OMC）的解剖变异与鼻窦炎发生的关系。方法：选取197例有明显症状、初诊为鼻窦炎的患者（鼻窦炎组），年龄4～74岁；选取无鼻部疾病史的654例为对照组，年龄4～76岁；两组均行鼻窦冠、轴状位CT扫描，对OMC的几种常见的解剖变异进行评估，并统计解剖变异与年龄的关系。结果：存在OMC区解剖变异的患者在11～20岁；慢性鼻窦炎患者的年龄11～20岁；鼻中隔偏曲、钩突变异和下鼻甲肥大的发生在鼻窦炎组和对照组之间差异有统计学意义（P〈0．05）。结论：OMC解剖变异常见，且与慢性鼻窦炎密切相关，特别是鼻中隔偏曲、钩突变异及下鼻甲肥大，纠正这三处的异常对鼻窦炎的预防和治疗有重大意义。

Clinical significance of CT Examination in 197 cases of sinusitis

Objective：To analyze the characteristic of chronic paranasal sinusitis CT scans and discuss the relationship between the anatomic variations in ostiomeatal complex（OMC） and the incidence of chronic sinusitis. Method：One hundred and ninety-seven cases diagnosised as sinusitis were selected and analyzed,whose age ranged between 4 and 74 years old. Several common anatomical abnormalities in ostiomeatal complex were evaluated through the observation of the coronal and axial plane CT scans of the paranasal sinusitis. Result：The incidence of anatomic variations in OMC concentrated in the age between 11--20. The incidence of chronic sinusitis also concentrated in the age between 11- 20. Deviation of nasal septum, uncinate variations, inferior-turbinate hypertrophy were observed between the chronic sinusitis group and the none chronic sinusitis group, the correlation between de viation of nasal septum, uncinate variations, inferior-turbinate hypertrophy and chronic sinusitis were significant （P〈0.05）. Conclusion：The occurrence of OMC variation is common. The anatomic variations may be one of the causes of chronic paranasal sinusitis, especially deviation of nasal septum, uncinate variations and inferior-turbinate hypertrophy. If these abnormalities were altered,it will have a great significance for the preservation and treatment of chronic paranasal sinusitis.