联合检测血清CEA、NSE、CYFRA21-1对肺癌诊断的临床价值

被引:0
作者
刘婷婷
机构
[1] 山东大学
关键词
肺癌; CEA; NSE; CYFRA21-1; 诊断;
D O I
暂无
年度学位
2012
学位类型
硕士
导师
摘要
目的:探讨肺癌患者血清中CEA、NSE、CYFRA21-1的水平及三者联合检测的临床意义,明确其对不同病理类型肺癌的临床鉴别诊断意义。 方法:采用电化学发光法检测294例研究对象外周血中CEA、NSE、 CYFRA21-1浓度,包括肺癌组182例、肺良性病组75例和健康人37例,并应用受试者工作曲线(ROC)对三个实验组的检测结果进行分析,比较三种标志物诊断鳞癌、腺癌和小细胞肺癌的准确性。结果:(1)与肺良性病组、健康组相比,肺癌组血清CEA.NSE.CYFRA21-1浓度要高(P<0.05),而肺良性病组与健康组间无统计学差异;(2)腺癌CEA的中位值5.90ng/ml,显著高于鳞癌和小细胞肺癌(χ2=11.812,P=0.001),鳞癌和小细胞肺癌间无统计学差异。小细胞肺癌的NSE中位值39.51ng/m1,显著高于非小细胞肺癌(x2=27.022,P<0.05)。鳞癌CYFRA21-1中位值6.74ng/m1,显著高于腺癌和小细胞肺癌(x2=16.753,P<0.05)。(3)以健康组为对照绘制三种病理类型肺癌的ROC曲线,并计算曲线下面积(AUC)。在腺癌中CEA的AUC为0.788±0.046,显著高于鳞癌和小细胞肺癌,所以CEA诊断腺癌的准确性要高。CYFRA21-1对鳞癌有较高的诊断准确性,AUC为0.919±0.029,显著高于CEA和NSE。在小细胞肺癌中NSE的AUC为0.980±0.011,与CEA、CYFRA21-1比较具有统计学差异,所以NSE对小细胞肺癌有较高的诊断准确性。(4)CEA诊断肺癌的特异度为89.33%,在三者中最高,与NSE和CYFRA21-1比较有统计学差异(P<0.05),三种标志物联合检测诊断肺癌的敏感度为90.11%,显著提高了诊断的敏感性。 结论: 1.肺癌患者血清CEA、NSE、CYFRA21-1水平明显高于良性肺病组和健康组(P<0.05),良性肺病组与健康组间无统计学差异。 2.CEA在腺癌中的水平和ROC曲线下面积(AUC)较高,用于诊断腺癌的准确性最高;NSE在SCLC中的水平和阳性率均高于鳞癌和腺癌,其ROC曲线下面积(AUC)在三者中最高,NSE用于诊断SCLC的准确性高;CYFRA21-1在鳞癌中的水平和阳性率要高于腺癌和SCLC,CYFRA21-1诊断鳞癌的准确性要高。 3.CEA诊断肺癌的特异性最高,可达89.33%,CEA、NSE、CYFRA21-1三者联合检测可提高肺癌诊断的敏感性。
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页数:48
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