Ge Xiao-jun, Zhang Guo-zhen, Mao Ding-biao, Ding Qi-yong, Hua Yan-qing
Department of Radiology, Shanghai Huadong Hospital, Shanghai 200040, China.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2006 Feb;28(1):61-3.
To study the correlation between the lung pixel indexes of multi-slice spiral CT (MSCT) and pulmonary function test (PFT), and to explore the CT features of histograms of lung attenuation.
MSCT scan and pulmonary function test (PFT) were separately performed in 127 subjects within one week. The total lung was scanned with MSCT at full inspiration, full expiration, and normal respiration. The lung pixel indexes were measured by Pulmo pulmonary quantitative software. These indexes include PI(-910Huin), PI(-960HUEX), PI(-910Huin), PI(-960Huex), PI(-910(Hun), PI(-960Hun), PI(910Huex/in), and the histograms of lung attenuation.
Correlation existed between all the lung pixel indexes of MSCT and PFT. PI(-910Huex/in showed the best correlation with FEV1/FVC (r = 0.901, P < 0.01). Three distribution patterns were found in the histograms of lung attenuation of total lung, including double-peak distribution (n = 28), similar normal distribution (n = 81), and partial distribution (n = 18).
The lung pixel indexes of MSCT have significant correlation with PFT and can be used to assess the pulmonary function.
研究多层螺旋CT（MSCT）肺像素指数与肺功能测试（PFT）之间的相关性，并探讨肺衰减直方图的CT特征。
对127名受试者在一周内分别进行MSCT扫描和肺功能测试（PFT）。在深吸气、深呼气和正常呼吸状态下用MSCT对全肺进行扫描。通过Pulmo肺定量软件测量肺像素指数。这些指数包括PI(-910Huin)、PI(-960HUEX)、PI(-910Huin)、PI(-960Huex)、PI(-910(Hun)、PI(-960Hun)、PI(910Huex/in)以及肺衰减直方图。
MSCT的所有肺像素指数与PFT之间均存在相关性。PI(-910Huex/in)与FEV1/FVC的相关性最佳（r = 0.901，P < 0.01）。全肺肺衰减直方图发现三种分布模式，包括双峰分布（n = 28）、近似正态分布（n = 81）和部分分布（n = 18）。
MSCT肺像素指数与PFT具有显著相关性，可用于评估肺功能。
