正常成年人肺吸气相及呼气相HRCT表现  

Inspiratory and expiratory high resolution CT lung findings in normal adult subjects

作　　者：徐茂盛[1] 杜绪仓[2] 王仁贵[3] 曾艳[1] 陈文聪[1] 

机构地区：[1]深圳市宝安区人民医院影像科,518101 [2]深圳市宝安区松岗人民医院影像科 [3]北京大学第一医院影像科

出　　处：《中国医师进修杂志（内科版）》2006年第6期14-16,共3页Chinese Journal of Postgraduates of Medicine

基　　金：2002年度广东省医学科学技术研究基金资助项目(A2002667)

摘　　要：目的探讨正常成年人肺吸气相及呼气相高分辨CT(HRCT)表现,建立正常人肺吸气相及呼气相HRCT标准,为临床诊断及鉴别诊断提供理论依据。方法对肺功能正常的64例成年志愿者进行了吸气相及呼气相HRCT扫描,主要测量正常成年人吸气相及呼气相的平均密度值、吸气相与呼气相的密度差值以及吸气相与呼气相的面积比值。结果正常人吸气相平均密度为(-795±58)HU,呼气相平均密度为(-706±59)HU,吸呼气相平均密度差为(90±43)HU,呼吸气相面积比为0.72±0.14。结论HRCT相关指标有望为肺功能测定开辟新的通道。Objective To evaluate inspiratory and expiratory high resolution CT （HRCT） lung findings in normal adults and set up inspiratory and expiratory HRCT criterion for further clinical diagnosis and differentiating diagnosis. Methods Sixty- four healthy adults underwent inspiratory and expiratory lung HRCT scanning. The lung density and slice area in upper, middle and lower fields were measured in inspiratory and expiratory phases respectively. Results The lung density in inspiratory phase was （ - 795 ± 58）HU, the lung density in expiratory phase was （ - 706 ± 59）HU, the inspiratory expiratory value difference was （90 ± 43）HU, and the expiratory inspiratory area ratio was 0.72 ± 0.14. Conclusion HRCT will be a new method for lung function testing in future.

关 键 词：X线计算机 肺 成人 

分 类 号：R135.2[医药卫生—劳动卫生] R153.9[医药卫生—公共卫生与预防医学]