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了解CT测量对阻塞性睡眠呼吸暂停综合征 (obstructivesleepapneasyndrome,OSAS)患者上呼吸道狭窄的定位诊断意义。已知上呼吸道阻塞部位的OSAS患者共 35例 ,将其阻塞部位CT测量资料与年龄性别相近的 35名正常对照组比较。结果显示 ,患者组的各平面气道横截面积、气道前后径、左右径均明显小于对照组 ,咽喉壁和咽侧壁软组织厚度多大于对照组。发生睡眠期呼吸道阻塞的部位中有 72 13%在患者清醒时其气道横截面积低于正常值。研究表明 ,阻塞部位的CT测量结果与正常对照组比较差异显著 ,72 13%的病例可以在常规的CT扫描测量中发现呼吸道解剖性狭窄。
To understand the significance of CT in the diagnosis of upper respiratory tract stenosis in patients with obstructive sleep apnea syndrome (OSAS). A total of 35 OSAS patients with obstructive upper airway obstruction were identified. CT data of obstructive sites were compared with those of 35 normal controls of similar age and gender. The results showed that the plane airway cross-sectional area, airway anteroposterior diameter, left and right diameter of the patient group were significantly less than the control group, the thickness of the soft tissue of the throat wall and pharyngeal wall was more than the control group. 72 13% of sites of obstructive airway obstruction experienced a lower than normal airway cross-sectional area when the patient was awake. Studies have shown that CT findings at obstructive sites are significantly different from those in the normal controls, with 72 13% of cases finding anatomical airway stenosis in routine CT scan measurements.