Study of time-density curve of target-slice dynamic enhanced multi-slice CT of lung solitary degeneration

刘卫金; 邹利光; 廖翠薇; 张启川; 戚跃勇; 王文献

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Study of time-density curve of target-slice dynamic enhanced multi-slice CT of lung solitary degeneration

更新时间：2026-01-09

- Study of time-density curve of target-slice dynamic enhanced multi-slice CT of lung solitary degeneration
- Journal of Army Medical University Vol. 30, Issue 16, Pages: 1499-1501(2008)
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  CLC： R563.04;R734.2;R814.42
- Published：2008
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刘卫金,邹利光,廖翠薇,张启川,戚跃勇,王文献.肺部孤立性病变多层螺旋CT同层动态扫描时间-密度曲线分析[J].陆军军医大学学报(原第三军医大学学报),2008,30(16):1499-1501.

　LIU Wei-jin,ZOU Li-guang,LIAO Cui-wei,ZHANG Qi-chuan,QI Yue-yong,WANG Wen-xian.Study of time-density curve of target-slice dynamic enhanced multi-slice CT of lung solitary degeneration[J].J Amry Med Univ (J Third Mil Med Univ),2008,30(16):1499-1501.
刘卫金,邹利光,廖翠薇,张启川,戚跃勇,王文献.肺部孤立性病变多层螺旋CT同层动态扫描时间-密度曲线分析[J].陆军军医大学学报(原第三军医大学学报),2008,30(16):1499-1501. DOI：

　LIU Wei-jin,ZOU Li-guang,LIAO Cui-wei,ZHANG Qi-chuan,QI Yue-yong,WANG Wen-xian.Study of time-density curve of target-slice dynamic enhanced multi-slice CT of lung solitary degeneration[J].J Amry Med Univ (J Third Mil Med Univ),2008,30(16):1499-1501. DOI：

摘要

目的探讨肺部孤立性病变同层动态CT扫描时间-密度曲线（time-density curve，TDC）的临床价值。方法对57例肺部孤立性病变按电影模式进行同层动态CT扫描，分析不同性质病变拟合的时间-密度曲线（fitting time-density curve， fTDC）走势和峰值高度的差异。结果恶性和炎性组的峰值高（peak height，PH）、病变与主动脉峰值高比率（M/A）[分别为（26.00±5.87）Hu，（10.00±2.87）％；（32.25±11.00）Hu，（12.68±3.36）％] 均明显大于良性组[（10.29±6.10）Hu，（3.75±2.22）％] (P0.01)；恶性组的fTDC主要表现为快速上升后缓慢下降或无下降支；炎性组的fTDC表现为速升速降或速升缓降，曲线峰值较高；良性组的fTDC多数表现为曲线走势平坦。结论 MSCT同层动态扫描的时间密度曲线有助于肺部孤立性病变的诊断与鉴别诊断。

Abstract

Objective To assess the clinical value of time-density curve of target-slice dynamic enhanced multi-slice CT of lung solitary degeneration. Methods The trend and peak height of time-density curves of 57 cases of lung solitary degeneration were studied after performing target-slice dynamic scan by GE Light-Speed ultra 16 CT scanner. Results peak height(PH) and M/A of malignant and inflammatory cases [（26.00±5.87）Hu，（10.00±2.87）％ and （32.25±11.00）Hu，（12.68±3.36）％

respectively] were significantly higher than those of benign ones [（10.29±6.10）Hu and （3.75±2.22）％] (P0.01). Fitting time-density curves （fTDC）of most malignant cases rose quickly at the beginning

then dropped slightly or showed no drop. Inflammatory cases presented fast-up-fast-down or fast-up-slow-down curve profiles with a rather high summit. However

most of the fTDCs of benign cases leveled off. Conclusion Time-density curve of target-slice dynamic enhanced CT is helpful in the diagnosis and discrimination of lung degeneratior.

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