【摘要】 目的　探讨呼气相HRCT对肺气肿患者的辅助诊断价值。方法　 2 8例肺气肿患者和健康志愿者进行吸气相、呼气相HRCT检查 ,肺气肿患者还进行了肺功能试验检查 ,对肺气肿患者和健康志愿者的双肺吸气相密度平均值 (ID)、双肺吸 -呼气相密度差值 (VD)进行统计学比较 ,并对患者的双肺ID、双肺VD和空气潴留评分值与肺功能试验指标进行相关性分析。结果　肺气肿患者和健康志愿者的双肺ID、双肺VD均存在显著性差异 ;双肺VD、空气潴留评分值与肺功能试验指标显著相关 (Ρ <0 .0 5 )。结论　呼气相HRCT能够反映肺气肿患者的肺功能状况 ,作为吸气相HRCT的辅助手段。更多还原

【Abstract】 Objective To evaluate the diagnostic value of expiratory lung HRCT in the diagnosis of emphysema.Methods Inspiratory and expiratory HRCT scans were performed in 28 patients with emphysema and 28 age-matched healthy volunteers. The inspiratory-expiratory value difference (VD) and inspiratory value (ID) of bilateral lungs were calculated and compared between the two groups. The ID, VD and air-trapping grading of bilateral lungs of the patients were correlated statistically with their pulmonary function test (PFT) indexes.Results There was significant difference of ID and VD between the patients and healthy volunteers. There was significant correlation between VD, air-trapping grading and PFT indexes in patients. Conclusion Expiratory HRCT scan can be an adjunct method to inspiratory HRCT in assessing pulmonary function of the patient with emphysema.更多还原