CT血管征在肺微小结节的诊断与鉴别诊断中的价值探讨

The value of CT in the diagnosis and differential diagnosis of small nodules in lung

目的研究CT血管征对肺微小结节良恶性判定的临床意义。方法分析我院95例肺微小结节患者CT影象学资料,依据病理诊断将其分为研究组与对照组,研究组恶性病变,对照组良性病变。对比两组CT血管征诊断的敏感性差异、病变类型与CT血管征分型间的关系、不同时点动态增强CT值、PH、SPH/PPH间差异。结果研究组血管征阳性者CT平扫、动态增强30s、90s、180s、300s、480s CT值与对照组CT平扫、各时点动态增强CT值相较,均呈明显差异(P<0.05)。研究组血管征阳性者动态增强CT特征性参数中,PH、SPH/PPH与对照组相较,均呈明显差异(P<0.05)。结论肺微小结节CT血管征有辅助诊断意义,可以指导临床判定肺微小结节的良恶性病变。动态增强扫描可以提高CT血管征对肺微小结节良恶性的确诊率。

Objective To study the clinical significance of CT blood vessel sign in the judgment of benign and malignant pulmonary nodules. Methods 95 cases of pulmonary nodules in our hospital were analyzed with CT.According to the pathological diagnosis,they were divided into the study group and the control group. The difference of sensitivity,the relationship between PH and CT,and the difference between CT,SPH / PPH and CT in two groups were observed. Results There were significant differences in vascular sign positive CT plain scan and CT values of dynamic enhanced 30 s,90 s,180 s,300 s and 480 s between the two groups（ P〈0. 05）. Research group of vascular sign positive dynamic enhancement CT characteristic parameters,The value of PH and SPH / PPH showed obvious difference between the two groups（ P〈0. 05）. Conclusion The CT blood vessel sign of small pulmonary nodules can be used in the diagnosis of benign and malignant lesions of the lung. Dynamic enhanced scan can improve the diagnosis rate of CT blood vessel in the differential diagnosis of benign and malignant lung nodules.