肺功能監(jiān)測和CT肺功能成像檢查結果的相關性分析
發(fā)布時間：2018-08-14 15:28
【摘要】：目的:探討CT肺功能參數與肺功能檢查參數的相關性及CT肺功能成像技術的可行性。方法:選取2011年7月至2015年6月在我院進行肺部檢查的患者80例作為研究對象。所有患者均在1周內完成PFT和胸部CT檢查。采用最大吸氣末和最大呼氣末屏氣螺旋CT掃描。用CT肺功能定量軟件分析CT掃描圖像。結果:吸氣末肺體積與PFT的最大肺總量明顯相關,呼氣末CT測得的肺體積與殘氣量、呼吸比與RV/TLC有相關性,吸氣第1秒用力呼吸量(FEV1)/用力肺活量(FVC)存在相關性。像素指數(PI)=-910~-950 HU,與FEV1、FEV1%、FEV1/FVC及FVC%相關,其中與FEV1/FVC的相關性最大。呼氣相平均CT值與FEV1、FEV1%、FVC%、FEV1/FVC存在相關性。呼氣相CT各閾值與PFT參數均相關。結論:行螺旋CT掃描測得最大吸氣末及最大呼氣末與PFT結果相關性好,因此CT肺功能定量成像技術可能是一種良好的測定肺功能相關參數的技術。
[Abstract]:Objective: to investigate the correlation between CT pulmonary function parameters and the feasibility of CT pulmonary function imaging. Methods: from July 2011 to June 2015, 80 patients underwent pulmonary examination in our hospital. All patients completed PFT and chest CT within 1 week. The maximum inspiratory and maximal expiratory breath holding spiral CT scans were used. Ct scanning images were analyzed with CT quantitative pulmonary function software. Results: the lung volume at the end of inspiratory period was significantly correlated with the maximal total lung volume of PFT. The lung volume measured by end-expiratory CT was correlated with residual volume and respiratory ratio with RV/TLC. There was a correlation between forced respiration volume (FEV1) and forced vital capacity (FVC) in the first second of inspiratory period. The pixel index (PI) was correlated with FEV1 / FEV1 / FEV1 / FVC and FVC%, especially with FEV1/FVC. The mean CT value of expiratory phase was correlated with FEV _ 1 / FEV _ 1 and FEV _ 1 / FVC. Expiratory CT thresholds were correlated with PFT parameters. Conclusion: the maximum inspiratory end and the maximum expiratory end measured by spiral CT have good correlation with the PFT results. Therefore, CT quantitative pulmonary function imaging may be a good technique for the measurement of pulmonary function related parameters.
【作者單位】： 四川省第四人民醫(yī)院呼吸內科;四川省第四人民醫(yī)院放射科;四川大學華西公共衛(wèi)生學院;
【分類號】：R816.4
本文編號：2183303
[Abstract]:Objective: to investigate the correlation between CT pulmonary function parameters and the feasibility of CT pulmonary function imaging. Methods: from July 2011 to June 2015, 80 patients underwent pulmonary examination in our hospital. All patients completed PFT and chest CT within 1 week. The maximum inspiratory and maximal expiratory breath holding spiral CT scans were used. Ct scanning images were analyzed with CT quantitative pulmonary function software. Results: the lung volume at the end of inspiratory period was significantly correlated with the maximal total lung volume of PFT. The lung volume measured by end-expiratory CT was correlated with residual volume and respiratory ratio with RV/TLC. There was a correlation between forced respiration volume (FEV1) and forced vital capacity (FVC) in the first second of inspiratory period. The pixel index (PI) was correlated with FEV1 / FEV1 / FEV1 / FVC and FVC%, especially with FEV1/FVC. The mean CT value of expiratory phase was correlated with FEV _ 1 / FEV _ 1 and FEV _ 1 / FVC. Expiratory CT thresholds were correlated with PFT parameters. Conclusion: the maximum inspiratory end and the maximum expiratory end measured by spiral CT have good correlation with the PFT results. Therefore, CT quantitative pulmonary function imaging may be a good technique for the measurement of pulmonary function related parameters.
【作者單位】： 四川省第四人民醫(yī)院呼吸內科;四川省第四人民醫(yī)院放射科;四川大學華西公共衛(wèi)生學院;
【分類號】：R816.4
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