【摘要】 目的:通过对一组110例鼻窦病变的MRI来分析粘膜肥厚、囊肿、息肉、蓄脓病变。资料与方法:从3000余例行头颅磁共振检查中抽取典型病例,采用T₁加权和T₂加权图像比较分析。结果:单纯上颌窦粘膜肥厚84例/110例（76.36％）,囊肿35例/110例（29.09％）,蝶窦及额窦炎症最为少见。结论:MRI对鼻窦病变检出率比其它影像检出率高,并能显示粘膜肥厚,囊肿、蓄脓的特点。更多还原

【Abstract】 Purpose; To study pathological changes of nasal sinuses by analysing the MRI of 110 :>atients respectively with pachymucosa, cystis, polyp or empyema. Patients and methods: The 110 typical cases, who had been chosen from more than 3, 000 patients given magnetic resonance examination ol skull were analysed and compared with TI and T2 weighted images. Results-. Of the 110 cases, simple maxillary sinus pachymucosa was found in 84 patients (76. 36%); cystis of sinus was found in 35 patients (29. 09%); inflammation of sphenoidal sinus or frontal sinus was seldom found in these patients. Conclusion-. The detectable rate of MR for pathological changes of nasal sinus is higher than that of other imaging means, and with MRI, characters of pachymucosa, cystis and empyema could be shown.更多还原