论文部分内容阅读
目的评价CT动态增强与三维血管重建对孤立性肺结节的定性诊断价值。方法对26例肺部孤立性结节患者,采用动态增强扫描,计算病灶最大CT净增值,绘制时间-密度曲线,并利用随机工作站,行肺结节的三维血管重建。根据肺结节增强后的最大CT净增值、时间-密度曲线及其周围的血管特征,对病变进行定性分析。结果(1)孤立性肺结节动态增强、三维血管重建对病变定性诊断的敏感性、特异性及准确性无显著性差异(P>0.05)。(2)孤立性肺结节动态增强和三维血管重建相结合,其定性诊断的敏感性、特异性、准确性分别为89%、71%、84%。结论动态CT增强与三维血管重建相结合可明显提高对孤立性肺结节诊断的准确性。
Objective To evaluate the value of CT dynamic enhancement and three-dimensional reconstruction in the diagnosis of solitary pulmonary nodules. Methods Twenty-six patients with solitary pulmonary nodules were enrolled in this study. Dynamic CT scan was used to calculate the maximum net CT value of the lesion. The time-density curve was plotted. Three-dimensional vascular reconstruction of pulmonary nodules was performed using a randomized workstation. The lesions were analyzed qualitatively based on the maximum CT net enhancement, the time-density curve and the surrounding blood vessel features after enhancement of pulmonary nodules. Results (1) The dynamic enhancement of solitary pulmonary nodules, three-dimensional vascular reconstruction of the qualitative diagnosis of the disease sensitivity, specificity and accuracy was no significant difference (P> 0.05). (2) The combination of dynamic enhancement of solitary pulmonary nodules and three-dimensional revascularization has the sensitivity, specificity and accuracy of 89%, 71% and 84% respectively. Conclusion The combination of dynamic CT enhancement and three-dimensional vascular reconstruction can significantly improve the accuracy of the diagnosis of solitary pulmonary nodules.