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中华肺部疾病杂志(电子版) ›› 2020, Vol. 13 ›› Issue (02) : 223 -228. doi: 10.3877/cma.j.issn.1674-6902.2020.02.020

论著

肺小结节危险因素分析及恶性预测模型的建立
朱妍1, 王剑2,()   
  1. 1. 212000 镇江,江苏大学医学院
    2. 212000 镇江,江苏大学附属人民医院
  • 收稿日期:2019-11-08 出版日期:2020-04-25
  • 通信作者: 王剑

Analysis of risk factors of small pulmonary nodules and establishment of malignant prediction model

Yan Zhu1, Jian Wang2,()   

  1. 1. School of Medicine, Jiangsu University, Zhenjiang 212000, China
    2. Affiliated People′s Hospital of Jiangsu University, Zhenjiang 212000, China
  • Received:2019-11-08 Published:2020-04-25
  • Corresponding author: Jian Wang
引用本文:

朱妍, 王剑. 肺小结节危险因素分析及恶性预测模型的建立[J]. 中华肺部疾病杂志(电子版), 2020, 13(02): 223-228.

Yan Zhu, Jian Wang. Analysis of risk factors of small pulmonary nodules and establishment of malignant prediction model[J]. Chinese Journal of Lung Diseases(Electronic Edition), 2020, 13(02): 223-228.

目的

分析恶性肺小结节的胸部CT特征及病理学结果,建立肺小结节恶性预测模型。

方法

回顾性分析镇江市第一人民医院2014-2018年诊断肺小结节患者,对其年龄、吸烟史、病理结果、结节最大直径、毛刺征、血管征、分叶征、空泡征、结节性质、结节部位等进行统计,并对血管征进行进一步分类:血管位于病灶旁或贴于病灶边缘;可见血管穿行于病灶。采用SPSS软件对上述各因素进行单因素分析,得出具有统计意义(P<0.05)的因素,再将有意义的因素进行二项Logist回归分析,并建立模型。

结果

预测模型为P=ex/(1+ex),x=0.269+(年龄×0.051)+(血管位于病灶旁或贴于病灶边缘×0.722)+(血管在结节中穿行×4.196)+(毛刺征×1.144)-(6.95×钙化)-(3.77×实性结节)-(2.21×磨玻璃结节),AUC为0.958,P<0.01,预测值为0.789,灵敏度87.1%,特异度94.3%,具有较高的准确性。

结论

建立的肺小结节的恶性预测模型具有较高的可信度。其中,血管穿行对肺小结节的良恶性判断具有较大的价值。

Objective

To analyze the characteristics of chest CT and the pathological results of malignant small pulmonary nodules and establish the malignant prediction model for pulmonary nodules.

Methods

The clinical data of the patients with pulmonary nodules admitted to our hospital from 2014 to 2018 were retrospectively analyzed. The information including the patients′age, smoking history, pathological results, nodule diameter, spicule sign, vascular signs, sign of lobulation, vacuole sign, nodule nature and nodule site was collected and analyzed. The vascular signs were further classified as the blood vessels being located next or attached to the edge of the nodules and the blood vessels passing through the nodules. Single factor analysis of all the factors was carried out by SPSS software and the statistically significant factors were obtained (if P<0.05). And then the significant factors were analyzed by binomial Logistic Regression analysis and the model was established.

Results

The predictive model was P=ex/(1+ ex), x=0.269+ (Age×0.051) + (Vessels located next to or attached to the edge of the lesion×0.722) + (Vessels passing through the nodules×4.196) + (Spicule sign 1.144)-(6.95×Calcification)-(3.77×Solid nodules)-(2.21×Ground glass nodules). In this study, the AUC was 0.958 (P<0.01), the predicted value was 0.789, the sensitivity was 87.1% and the specificity was 94.3%. Therefore, the accuracy of the predictive model for the malignant nodules was as high as expected.

Conclusion

The mathematical predictive model for malignant nodules established in this study has a high reliability. And the vascular signs have great values in the determination of the pulmonary nodules.

表1 肺小节患者临床资料
表2 肺部小节观察级及对照组单因素分析
临床资料 观察组[n=70,(%)] 对照组[n=286,(%)] t2 P 临床资料 观察组[n=70,(%)] 对照组[n=286,(%)] t2 P
年龄 55.5±10.87 60.24±10.61 -3.31 0.01 分叶征 无(44,25.3) 无(130,74.7) 6.82 <0.01
个数 n=1(53,22) n=1(188,78) -1.34 0.18   有(26,14.3) 有(156,85.7)    
  n=2(6,10.3) n=2(52,89.7)     毛刺征 无(43,24.9) 无(130,75.1) 5.74 0.017
  n=3(11,91.7) n=3(1,8.3)       有(27,14.8) 有(156,82.2)    
最大直径 14.4±7.5 16.4±7.2 -2.04 0.04 胸膜牵拉征 无(38,20.5) 无(147,79.5) 0.19 0.665
性别 男(33,20.4) 男(129,79.6) 0.09 0.76   有(32,18.7) 有(139,82.3)    
  女(37,19.1) 女(157,80.9)     肺门/纵膈淋巴结肿大 无(58,21.6) 无(211,78.4) 2.51 0.113
吸烟史 无(51,19.4) 无(212,80.6) 0.05 0.83   有(12,13.8) 有(75,86.2)    
  有(19,20.4) 有吸(74,79.6)     空泡征 无(57,23.6) 无(185,76.4) 7.24 <0.01
血管 无血管影(19,43.2) 无血管影(25,56.8) 55.5 <0.01   有(13,11.4) 有(101,88.6)    
  血管在结节中穿行(2,1.4) 血管位于病灶旁或贴于病灶边缘(119,70.8)     质地 SN(33,30.8) SN(74,69.2) 12.10 0.001
  血管位于病灶旁或贴于病灶边缘(49,29.2) 血管在结节中穿行(142,96.6)       PSN(29,16.7) PSN(145,83.3) 1.93 0.164
部位1 左肺(29,19.2) 左肺(122,80.8) 0.04 0.852   pGGO(8,10.7) pGGO(67,89.3) 4.86 0.027
  右肺(41,20.0) 右肺(164,80)     钙化 有(33,10.5) 有(281,89.5) 119.6 <0.01
部位2 上肺(29,17.2) 上肺(140,82.8) 1.28 0.259   无(37,88.1) 无(5,11.9)    
  非上肺(41,21.9) 非上肺(146,78.1)              
表3 二项Logistic回归分析
图1 对角段由绑定值生成
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