纯磨玻璃结节定量CT鉴别肺浸润性腺癌与浸润前病变和微浸润腺癌

被引:45
作者
秦福兵 [1 ,2 ]
陆友金 [1 ]
机构
[1] 安徽医科大学第二附属医院呼吸内科
[2] 舒城县人民医院呼吸科
关键词
肺腺癌; 浸润性; 磨玻璃结节; CT;
D O I
10.19627/j.cnki.cn31-1700/th.2016.01.006
中图分类号
R734.2 [肺肿瘤];
学科分类号
100117 [系统生物医学];
摘要
目的:研究肺纯磨玻璃结节(p GGN)CT定量参数能否鉴别浸润性腺癌和浸润前病变/微浸润腺癌。方法:回顾性分析58例(其中9名男性,年龄27~79岁)58个经手术病理诊断的p GGN的大小和CT值指标,用方差分析及t检验比较各组间的差异,用受试者工作特性曲线(ROC曲线)确立鉴别诊断的最佳临界点。结果:病变分成浸润前/微浸润病灶(n=38,包括7个非典型腺瘤样增生,17个原位腺癌,14个微浸润腺癌)和浸润性腺癌(n=20)。浸润性腺癌瘤体大小(20.3±8.5)mm和CT值(-412.6±55.0)HU均明显大于浸润前/微浸润病灶[大小为(9.5±3.2)mm,CT值为(-554.7±84.4)HU;P<0.001]。上述两个指标分别取临界值≥12.5 mm和CT值≥–482.5 HU作为诊断浸润性肺腺癌的标准,诊断的准确度为87.9%,敏感度100%,特异度81.6%,阳性预测值74.1%,阴性预测值100%。结论:p GGN大小和CT值有助于鉴别浸润性腺癌和浸润前/微浸润病变。
引用
收藏
页码:22 / 26
页数:5
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