Parameters of quantitative multi-slice CT imaging technology in pulmonary
- VernacularTitle:多层螺旋CT定量成像技术肺部参数应用
- Author:
Huai CHEN
;
Qingsi ZENG
;
Yubao GUAN
;
Yi GAO
;
Jinping ZHENG
;
Xinran HOU
- Publication Type:Journal Article
- Keywords:
Tomography,X-ray computed;
Pulmonary function test;
Quantitative analysis
- From:Chinese Journal of Medical Imaging Technology
2010;26(2):351-354
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the relevance of MSCT pulmonary function parameters and pulmonary function test (PFT) parameters, and to define the reference value of MSCT pulmonary function parameters. Methods Thirty male volunteers received clinical PFT and MSCT scan. MSCT scan was perfomed at the end of the maximum inspiratory and maximum expiratory. All data were analyzed with the lung analysis software of computer-aided inspection system correlatedly with pulmonary function parameters. Results The lung volume at full inspiratory volume (Vin) and full expiratory volume (Vex) in MSCT scan had good correlation with total lung capacity (TLC) and residual volume (RV) (r=0.90, P<0.01; r=0.74, P<0.01). Vex/Vin was correlated with RV/TLC (r=0.74, P<0.01), and Vin-Vex was correlated with MVC (r=0.85, P<0.01). In inspiration, the average lung density was (-879.51±32.82) HU, the density per unit volume was (0.12±0.03) g/cm3, while in expiratory they were (-688.14±62.38) HU and (0.31±0.06) g/cm3. Conclusion MSCT pulmonary function tests with the analysis software of computer-aided inspection system have good correlation with PFT.
