目的探讨放射组学特征与CT影像学征象相结合在预测周围型非小细胞肺癌(NSCLC)发生胸膜浸润(VPI)中的价值。方法选取经手术病理证实的周围型NSCLC患者398例,根据有无胸膜浸润将患者分为阴性组209例和阳性组189例,评估所有患者的CT征象。...目的探讨放射组学特征与CT影像学征象相结合在预测周围型非小细胞肺癌(NSCLC)发生胸膜浸润(VPI)中的价值。方法选取经手术病理证实的周围型NSCLC患者398例,根据有无胸膜浸润将患者分为阴性组209例和阳性组189例,评估所有患者的CT征象。以7∶3的比例将患者随机分配到训练集和验证集,使用随机森林回归分析构建预测模型(纹理特征模型、CT影像学特征模型和联合预测模型),用ROC曲线评价其诊断性能。结果阴性组和阳性组患者在平均直径、平均CT值、密度、病灶与胸膜的关系(RAP)分型、胸膜凹陷征方面差异均有统计学意义(P<0.05),且多因素回归分析显示肿瘤平均直径、密度、RAP类型和淋巴结转移是VPI的独立预测因子。共选出786个纹理参数,通过mRMR和LASSO特征分析识别出12个具有预测意义的纹理特征。RF回归分析构建预测模型,结果显示联合预测模型对训练集和验证集的AUC分别为0.915、0.887,且联合预测模型的AUC分别显著高于纹理特征模型和CT影像学特征模型(0.915 vs 0.856 vs 0.852;0.887 vs 0.855 vs 0.827);联合预测模型的特异度也高于纹理特征模型和CT影像学特征模型(91.2%vs 88.2%vs 85.3%;94.1%vs 85.3%vs 70.6%)。结论放射组学特征联合CT影像学征象可有效预测直径≤3.0 cm周围型NSCLC患者胸膜浸润的存在。展开更多
Objective: To investigate the correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion. Methods: A total of 187 patients with primary non-small cell ...Objective: To investigate the correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion. Methods: A total of 187 patients with primary non-small cell lung cancer complicated by malignant pleural effusion were selected as malignant pleural effusion group and 56 patients with tuberculous pleural effusion were selected as tuberculous pleural effusion group. The expression of RCAS1 and Claudin-18 gene as well as proliferation and invasion-related genes in the pleural effusion were compared between the two groups, and Pearson test was used to evaluate the correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion. Results: RCAS1 and Claudin-18 mRNA expression in pleural effusion of malignant pleural effusion group were greatly higher than those of tuberculous pleural effusion group. Proliferation genes LRRC3B and TCF21 mRNA expression in pleural effusion of malignant pleural effusion group were lower than those of tuberculous pleural effusion group whereas SIRT1 and EZH2 mRNA expression were higher than those of tuberculous pleural effusion group;invasion genes DDX17, Nectin4, Vav3, NGAL and Snail mRNA expression were higher than those of tuberculous pleural effusion group whereas EFEMP1 and MCPH1 mRNA expression were lower than those of tuberculous pleural effusion group. The Pearson test showed that the RCAS1 and Claudin-18 expression in malignant pleural effusion were directly correlated with the expression of proliferation-related genes and invasion-related genes. Conclusion: RCAS1 and Claudin-18 expression increase abnormally in malignant pleural effusion, the specific expression is directly correlated with tumor cell proliferation and invasion activity, and they can be used as the reliable indicators for the identification of benign or malignant pleural effusion.展开更多
Objective:To investigate the effect of bevacizumab combined with carboplatin therapy for malignant pleural effusion of non-small cell lung cancer on tumor markers, angiogenesis molecules and invasive growth molecules....Objective:To investigate the effect of bevacizumab combined with carboplatin therapy for malignant pleural effusion of non-small cell lung cancer on tumor markers, angiogenesis molecules and invasive growth molecules.Methods:A total of 68 patients who were diagnosed with non-small cell lung cancer complicated by pleural effusion in the Affiliated T.C.M Hospital of Southwest Medical University between June 2013 and August 2016 were selected and randomly divided into two groups, the combined group received bevacizumab combined with carboplatin chemotherapy, and the carboplatin group received carboplatin chemotherapy. Before treatment as well as 3 cycles and 6 cycles after treatment, the contents of tumor markers, angiogenesis molecules and invasive growth molecules in pleural effusion were examined.Results:3 cycles and 6 cycles after treatment, CEA, SCCAg, CYFRA21-1, sHLA-G, VEGF, VEGFR, PTN, MMP7 and MMP10 contents in pleural effusion of both groups of patients were significantly lower than those before treatment while TIMP1 and TIMP2 contents were significantly higher than those before treatment, and CEA, SCCAg, CYFRA21-1, sHLA-G, VEGF, VEGFR, PTN, MMP7 and MMP10 contents in pleural effusion of combined group were significantly lower than those of carboplatin group while TIMP1 and TIMP2 contents were significantly higher than those of carboplatin group.Conclusion:Bevacizumab combined with carboplatin therapy for malignant pleural effusion of non-small cell lung cancer can effectively kill cancer cells, and inhibit angiogenesis and cell invasion.展开更多
文摘目的探讨放射组学特征与CT影像学征象相结合在预测周围型非小细胞肺癌(NSCLC)发生胸膜浸润(VPI)中的价值。方法选取经手术病理证实的周围型NSCLC患者398例,根据有无胸膜浸润将患者分为阴性组209例和阳性组189例,评估所有患者的CT征象。以7∶3的比例将患者随机分配到训练集和验证集,使用随机森林回归分析构建预测模型(纹理特征模型、CT影像学特征模型和联合预测模型),用ROC曲线评价其诊断性能。结果阴性组和阳性组患者在平均直径、平均CT值、密度、病灶与胸膜的关系(RAP)分型、胸膜凹陷征方面差异均有统计学意义(P<0.05),且多因素回归分析显示肿瘤平均直径、密度、RAP类型和淋巴结转移是VPI的独立预测因子。共选出786个纹理参数,通过mRMR和LASSO特征分析识别出12个具有预测意义的纹理特征。RF回归分析构建预测模型,结果显示联合预测模型对训练集和验证集的AUC分别为0.915、0.887,且联合预测模型的AUC分别显著高于纹理特征模型和CT影像学特征模型(0.915 vs 0.856 vs 0.852;0.887 vs 0.855 vs 0.827);联合预测模型的特异度也高于纹理特征模型和CT影像学特征模型(91.2%vs 88.2%vs 85.3%;94.1%vs 85.3%vs 70.6%)。结论放射组学特征联合CT影像学征象可有效预测直径≤3.0 cm周围型NSCLC患者胸膜浸润的存在。
基金Shaanxi Natural Science Foundation Projects No:(20021210-G3).
文摘Objective: To investigate the correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion. Methods: A total of 187 patients with primary non-small cell lung cancer complicated by malignant pleural effusion were selected as malignant pleural effusion group and 56 patients with tuberculous pleural effusion were selected as tuberculous pleural effusion group. The expression of RCAS1 and Claudin-18 gene as well as proliferation and invasion-related genes in the pleural effusion were compared between the two groups, and Pearson test was used to evaluate the correlation of RCAS1 and Claudin-18 expression with proliferation and invasion gene expression in malignant pleural effusion. Results: RCAS1 and Claudin-18 mRNA expression in pleural effusion of malignant pleural effusion group were greatly higher than those of tuberculous pleural effusion group. Proliferation genes LRRC3B and TCF21 mRNA expression in pleural effusion of malignant pleural effusion group were lower than those of tuberculous pleural effusion group whereas SIRT1 and EZH2 mRNA expression were higher than those of tuberculous pleural effusion group;invasion genes DDX17, Nectin4, Vav3, NGAL and Snail mRNA expression were higher than those of tuberculous pleural effusion group whereas EFEMP1 and MCPH1 mRNA expression were lower than those of tuberculous pleural effusion group. The Pearson test showed that the RCAS1 and Claudin-18 expression in malignant pleural effusion were directly correlated with the expression of proliferation-related genes and invasion-related genes. Conclusion: RCAS1 and Claudin-18 expression increase abnormally in malignant pleural effusion, the specific expression is directly correlated with tumor cell proliferation and invasion activity, and they can be used as the reliable indicators for the identification of benign or malignant pleural effusion.
文摘Objective:To investigate the effect of bevacizumab combined with carboplatin therapy for malignant pleural effusion of non-small cell lung cancer on tumor markers, angiogenesis molecules and invasive growth molecules.Methods:A total of 68 patients who were diagnosed with non-small cell lung cancer complicated by pleural effusion in the Affiliated T.C.M Hospital of Southwest Medical University between June 2013 and August 2016 were selected and randomly divided into two groups, the combined group received bevacizumab combined with carboplatin chemotherapy, and the carboplatin group received carboplatin chemotherapy. Before treatment as well as 3 cycles and 6 cycles after treatment, the contents of tumor markers, angiogenesis molecules and invasive growth molecules in pleural effusion were examined.Results:3 cycles and 6 cycles after treatment, CEA, SCCAg, CYFRA21-1, sHLA-G, VEGF, VEGFR, PTN, MMP7 and MMP10 contents in pleural effusion of both groups of patients were significantly lower than those before treatment while TIMP1 and TIMP2 contents were significantly higher than those before treatment, and CEA, SCCAg, CYFRA21-1, sHLA-G, VEGF, VEGFR, PTN, MMP7 and MMP10 contents in pleural effusion of combined group were significantly lower than those of carboplatin group while TIMP1 and TIMP2 contents were significantly higher than those of carboplatin group.Conclusion:Bevacizumab combined with carboplatin therapy for malignant pleural effusion of non-small cell lung cancer can effectively kill cancer cells, and inhibit angiogenesis and cell invasion.
