Inspiratory and expiratory high resolution CT lung findings in normal adult subjects
- VernacularTitle:正常成年人肺吸气相及呼气相HRCT表现
- Author:
Maosheng XU
;
Xucang DU
;
Rengui WANG
;
Yan ZENG
;
Wencong CHEN
- Publication Type:Journal Article
- Keywords:
X-ray computed;
Lung;
Adult
- From:
Chinese Journal of Postgraduates of Medicine
2006;0(16):-
- CountryChina
- Language:Chinese
-
Abstract:
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.
