中南地区正常成人上呼吸道的MRI测量及其临床价值

MRI Assessment of Normal Adult Upper Airway

目的:测量中南地区正常成人上呼吸道MR扫描后各层面径线长度、咽壁厚度及横截面积等指标,为临床诊断该区域病变提供客观指标。方法:对182例健康成人行MR上呼吸道扫描,并测量软腭后区、悬雍垂区、舌后区和会厌后区气道各径线长度、咽壁厚度和横截面积等指标,以单侧95%可信区间确定各测量指标的参考值。结果:在气道各个扫描平面中,绝大多数冠状径大于矢状径,男子组和女子组间比较,除软腭后区外,大多数测量指标差异显著,并指定了男、女各测量指标的正常值范围。结论:成人上呼吸道MRI测量及正常值的确定,为临床判断该区有否占位性病变及阻塞性睡眠呼吸暂停综合征(OSAS)患者气道解剖性狭窄部位的确定提供了客观指标。

Objective： To measure the normal upper airway dimension of adults in middle-south China on MRI and to establish the normal diagnosis criterions of upper airway stricture. Methods： The upper airways of 182 normal adults were scanned by MR scanning. The area and dimension of palate, uvula, lingua and epiglottis region were studied, and the retropharyngeal thicknesses was evaluated too. The normal extent of every variable was determined by unilateral 95 % confidence interval. Results： The coronary diameter was larger than sagittal dimension of most upper airway across the section at different levels. Except palate region, there were significant differences in most of variables between male and female. The normal extents of upper airway variable were established in males and females respectively. Conclusion： The MRI assessment of normal adult upper airway can give an objective criterion to the diagnosis of occupying lesions in upper airway and the accurate location in OSAS patients.