低剂量能谱CT结合ASIR重建对肺部炎性肿块与周围型肺癌的鉴别诊断价值

发布时间：2018-05-30 23:11

本文选题：能谱成像 + 诊断　；参考：《实用医学杂志》2017年16期

【摘要】：目的探讨低剂量能谱CT结合自适应迭代重建技术(ASIR)在鉴别肺部炎性肿块、周围型肺癌中的价值。方法回顾性分析2015年6月至2016年5月期间行能谱CT检查147例共165个肺部肿块或结节,分析病变动脉期的碘物质浓度、水物质浓度、标准化能谱曲线斜率,对两组病变的碘物质浓度、水物质浓度、标准化能谱曲线斜率进行独立样本t检验。结果 165个肿块或结节中,炎性肿块68个,周围型肺癌97个,动脉期周围型肺癌的碘物质浓度、水物质浓度、标准化能谱曲线斜率(10.93±5.12、1 033.96±9.74、0.998±0.66)均明显高于炎性肿块(5.29±0.96、1 028.85±9.31、0.620±0.16),差异有统计学意义(P值分别为0.000、0.008、0.001)。结论低剂量能谱CT结合ASIR重建碘物质浓度、水物质浓度及标准化能谱曲线斜率可以对肺内炎性肿块与周围型肺癌的鉴别诊断提供定量信息,对二者的鉴别诊断具有较高的临床应用价值。
[Abstract]:Objective to evaluate the value of low dose energy spectrum CT combined with adaptive iterative reconstruction (ASIR) in the identification of pulmonary inflammatory mass and peripheral lung cancer. Methods a retrospective analysis of 165 lung masses or nodules from June 2015 to May 2016 was performed in 147 cases with CT examination, and the concentration of iodine, water substance concentration and standardized energy were analyzed. The slope of spectral curve was independent of the slope of iodine substance, water substance concentration, and standardized energy spectrum curve of two groups of lesions. Results 165 masses or nodules, 68 inflammatory masses, 97 peripheral lung cancer, iodine concentration of peripheral lung cancer, water substance concentration, and standardized energy spectrum curve slope (10.93 + 5.12,1 33.96 +) 9.74,0.998 + 0.66) was significantly higher than that of inflammatory mass (5.29 + 0.96,1 28.85 + 9.31,0.620 + 0.16), and the difference was statistically significant (P value was 0.000,0.008,0.001). Conclusion the low dose energy spectrum CT combined with ASIR to reconstruct iodine concentration, the water substance concentration and the standard energy spectrum curve slope can be used to identify the pulmonary inflammatory mass and peripheral lung cancer. Providing quantitative information is of great clinical value to the differential diagnosis of the two.
【作者单位】：江苏省苏北人民医院医学影像科;
【基金】：扬州市自然科学基金资助项目(编号:YZ2015100)
【分类号】：R563.1;R734.2;R816.41

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