| 陈淮,曾庆思,关玉宝,高怡,郑劲平,侯欣然.多层螺旋CT定量成像技术肺部参数应用[J].中国医学影像技术,2010,26(2):351~354 |
| 多层螺旋CT定量成像技术肺部参数应用 |
| Parameters of quantitative multi-slice CT imaging technology in pulmonary |
| 投稿时间：2009-07-20 修订日期：2009-09-16 |
| DOI： |
| 中文关键词: 体层摄影术,X线计算机 肺功能检查 定量分析 |
| 英文关键词:Tomography, X-ray computed Pulmonary function test Quantitative analysis |
| 基金项目:广东省科技计划项目(2008-83049)、广州医学院科研基金(03-N-19)。 |
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| 中文摘要: |
| 目的 评价多层螺旋CT(MSCT)肺功能参数与常规肺功能参数的相关性,确定MSCT肺功能参数的正常值。方法 正常志愿者30名接受常规肺功能检查及MSCT检查,在最大吸气末及最大呼气末屏气扫描,所有数据通过肺计算机辅助检查系统软件进行分析,所得数据与肺功能检查(PFT)进行相关性分析。结果 MSCT扫描所得正常者吸气末肺体积(Vin)和呼气末肺体积(Vex)与PFT所得肺总量(TLC)及残气量(RV)有很好的相关性(r=0.90,P<0.01;r=0.74,P<0.01),Vex/Vin与RV/TLC相关 (r=0.74,P<0.01),Vin－Vex与MVC相关 (r=0.85,P<0.01)。深吸气末平均肺密度为(－879.51±32.82)HU,单位体积密度为(0.12±0.03)g/cm3,深呼气末平均肺密度为(－688.14±62.38)HU,单位体积密度为(0.31±0.06)g/cm3。结论 MSCT肺功能检查所得的一系列定量参数与肺功能数据间有较好的相关性。 |
| 英文摘要: |
| 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. |
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