高分辨率CT对纯磨玻璃密度结节良恶性诊断价值探讨

被引:30
作者
范明新 [1 ]
步玉兰 [2 ]
张学成 [2 ]
戚元刚 [3 ]
机构
[1] 山东省医学科学院附属医院放射科
[2] 潍坊医学院附属医院放疗科
[3] 山东大学附属山东省肿瘤医院放射科
关键词
肺肿瘤; 肺腺癌; 计算机体层摄影; 病理学;
D O I
10.16073/j.cnki.cjcpt.2018.15.010
中图分类号
R734.2 [肺肿瘤];
学科分类号
100117 [系统生物医学];
摘要
目的在胸部CT扫描中,肺部纯磨玻璃密度结节(pure ground glass nodule,pGGN)十分常见,且各期临床处理方式不同。本研究探讨pGGN良恶性与高分辨率CT表现的相关性。方法选取2012-05-01-2014-09-01山东省肿瘤医院收治的59例肺pGGN患者作为研究对象,共59个pGGN。由3名放射科医生回顾分析pGGN的HRCT特征,采用t检验、χ2检验、Fisher确切概率法和Logistic回归分析等统计学方法,分析其与侵袭性之间相关性。依据组织病理学结果,将pGGN的侵袭性分为浸润前病变(包括不典型腺瘤样增生及原位癌)与浸润性病变(包括微浸润性腺癌及浸润性腺癌)。应用ROC曲线分析pGGN直径诊断效能。结果 pGGN毛刺征、边缘分叶、血管增粗、血管牵拉征、密度及胸膜凹陷征在浸润前病变与浸润性病变两组之间差异具有统计学意义,均P值<0.05;充气支气管和形态差异无统计学意义,均P值>0.05;Logistic多因素回归分析显示,边缘分叶、血管牵拉征和血管增粗为鉴别肺腺癌浸润前病变和浸润性病变的独立影响因素,均P值<0.05。ROC曲线分析显示,鉴别浸润前病变与浸润性病变病灶大小的最佳界值为0.945cm,曲线下面积为0.688,诊断的敏感度为95.10%,特异度为44.40%。结论 CT特征可以预测pGGN的良恶性,边缘分叶、血管牵拉征、血管增粗和直径>0.945cm在预测pGGN侵袭性方面具有重要意义。
引用
收藏
页码:1094 / 1097
页数:4
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