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目的 :探讨具有典型慢性鼻窦炎症状患者鼻窦 CT扫描阴性的原因。方法 :分析 8例 CT扫描阴性的鼻窦炎患者的临床资料。结果 :8例均在功能性鼻内窥镜手术中发现鼻窦内粘膜肿胀、息肉样变或小息肉形成。结论 :具有典型鼻窦炎症状而鼻窦 CT扫描出现阴性结果的原因为 :1鼻窦 CT扫描仅能提供静态的影像学结果 ;2可能与部分容积效应有关 ;3与断层的部位和 CT分辨率有关 ;4可能与慢性鼻窦炎的病理学改变和分型有关。
Objective: To investigate the causes of negative CT scan of paranasal sinuses in patients with typical symptoms of chronic sinusitis. Methods: The clinical data of 8 patients with CT-negative sinusitis were analyzed. Results: All the 8 cases were found to have mucosal swelling, polypoid or polypoid formation in the sinus during functional endoscopic sinus surgery. CONCLUSIONS: The causes of typical sinusitis with negative results of CT scan of sinuses are as follows: 1 Sinus CT scan can only provide static imaging results; 2 may be related to partial volume effect; 3 related to the location of the fault and CT resolution; 4 may be related to pathological changes and typing of chronic sinusitis.