小细胞肺癌与非小细胞肺癌宝石CT能谱研究

发布时间：2018-08-22 18:58

【摘要】：目的通过对小细胞肺癌与非小细胞肺癌能谱CT增强扫描,探讨CT能谱成像定量分析在鉴别小细胞肺癌与非小细胞肺癌影的像学价值。方法回顾性选取病理已确诊的小细胞肺癌与非小细胞肺癌各20例,均用宝石能谱CT进行GSI扫描,在宝石能谱成像浏览器(GSI viewer)的软件上进行,得到能谱曲线含碘量图40～140keV能量水平的CT值及斜率值对比,最后进行数据分析。结果增强扫描中40～140keV能量水平的CT值中,40～70keV能量水平的CT值小细胞肺癌组低于非小细胞肺癌组,小细胞肺癌组与非小细胞肺癌组能谱曲线肿瘤内40～70keV兴趣区(ROI)碘含量斜率各为(2.07±0.76)、(3.08±1.16),两组组间斜率差异有统计学意义(t=3.23,P0.05)。结论小细胞肺癌与非小细胞肺癌能谱成像上碘含量不同的特征,可以初步区分小细胞肺癌与非小细胞肺癌,为影像学鉴别诊断提供一定的参考价值。
[Abstract]:Objective to evaluate the value of quantitative analysis of energy dispersive CT imaging in differentiating small cell lung cancer from non small cell lung cancer. Methods Twenty cases of pathologically confirmed small cell lung cancer and 20 cases of non-small cell lung cancer were retrospectively selected. The GSI scan was performed by using the gemstone spectrum CT scan and the software of the gem spectrum imaging browser (GSI viewer) was used. The CT value and slope value of the 40~140keV energy level in the energy spectrum curve were compared. Finally, the data were analyzed. Results the CT value of 40~140keV energy level in contrast enhanced scan was lower in small cell lung cancer group than in non small cell lung cancer group. The slope of (ROI) iodide content in the 40~70keV region of interest in the small cell lung cancer group and the non-small cell lung cancer group was (2.07 卤0.76), (3.08 卤1.16), and the difference between the two groups was statistically significant (P 0.05). Conclusion the different characteristics of iodine content in small cell lung cancer and non small cell lung cancer can be used to distinguish small cell lung cancer from non small cell lung cancer and provide some reference value for differential diagnosis of small cell lung cancer and non small cell lung cancer.
【作者单位】：山西医科大学第二医院影像科;
【分类号】：R734.2

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