摘要
目的:通过对66例肺微小结节的CT表现进行观察和分析,探讨CT血管征在肺微小结节定性诊断中的价值。方法:选择行CT检查所检出的最大直径≤1.5cm的肺微小结节患者66例作为观察对象。结果:本组血管征的总出现率为57.58%(38/66),其中恶性结节血管征出现率为72.09%(31/43),良性结节为30.43%(7/23),两者间差异有高度统计学意义(χ2=10.65,P<0.001);肺微小结节的血管征分为4型,本组Ⅰ型7例,均为恶性;Ⅱ型9例,其中良性3例;Ⅲ型6例,均为恶性;Ⅳ型16例,良性4例;其它小肺癌CT征象出现率则较低,分析时结合血管征可作为鉴别诊断的参考。结论:CT血管征在肺微小结节的诊断与鉴别诊断中有较高的价值,血管征表现为Ⅰ型和Ⅲ型时应考虑为恶性,表现为Ⅱ型和Ⅳ型时要结合其它CT征象进行诊断。
Objective：To explore the value of the vessel sign on CT images for the diagnosis of lung tiny nodular le sions. Methods： Sixty-six cases of lung tiny nodular lesions measured less than 1.5cm,admitted to our hospital between De- cember 2006 and March 2010,were selected as the study subjects. Results：The vessel sign was found in 31 of 43 （72.09%） malignant nodule and in 7 of 23 （30. 43%） benign nodules. Significant difference was shown between malignancy and benign lesions （χ2= 10.65, P〈0. 001）. The vessel sign on CT scans of lung tiny nodular lesions was defined as 4 types. All 7 cases of type Ⅰ were malignant,3 cases of type Ⅱ were benign,all 6 cases of type Ⅲ were malignant,4 cases of type Ⅳ were be- nign. The occurrence rate of other CT findings of small lung cancer was relatively lower,The vessel convergence sign were beneficial to the diagnosis of small lung cancer. Conclusion：The vessel convergence sign appears to be valuable for the diag- nosis of lung cancer on CT. The diagnosis of the malignant nodules should be considered with the vessel sign of type Ⅰ or type Ⅲ. The vessel sign of type Ⅱ and type Ⅳ should be combined with the other findings for the diagnosis.
出处
《放射学实践》
2012年第11期1201-1203,共3页
Radiologic Practice
基金
舟山市科技局资助项目(2011C12042)
关键词
体层摄影术
X线计算机
孤立性肺结节
肺肿瘤
血管征
Tomography
X ray computer
Solitary pulmonary nodule
Lung neoplasms
Vascular sign
