三维重建在孤立性肺结节血管集束征的诊断价值

目的:探讨三维重建图像对孤立性肺结节（SPN）血管集束征的显示及其诊断价值。资料与方法:回顾性分析经病理确诊的63例SPN，在三维重建工作站进行多平面重组（MPR）及容积再现（VR），观察血管集束征的显示，统计分析两种方法的差异以及在良恶性SPN鉴别诊断中的应用价值。结果:SPN的血管集束征在VR图像显示率高于MPR（P<0.05），在MPR和VR图像上，恶性SPN血管集束征的显示率均高于良性（P<0.05）。结论:三维重建图像能够更全面地显示血管集束征，对SPN的良恶性分析有一定的参考价值。 

Diagnostic Value of the Vascular Convergence Sign of Solitary Pulmonary Nudules on 3D Reconstruction

Objective To explore the diagnostic value of the vascular convergence sign of solitary pulmonary nodule (SPN) on 3D reconstrucion. Materials and Methods Helical CT scans of 63 patients with SPN confirmed by pathology were reviewed and and analyzed.3D reconstruction was made using MPR and VR. Manifestation of the vascular convergence sign of the tumor was observed. A difference in the result was found between MPR and VR, benign and malignant SPN. Results: The rate of visualization of the vascular convergence sign of SPN in VR was higher than the one in MPR (P < 0.05). The rate of visualization of the vascular convergence sign in benign SPN was higher than the one in malignant (P < 0.05). Conclusion: 3D reconstrucion can demonstrate vascular convergence sign effectively. VR is an effective method for the differentiation of benign SPN with malignant lesions.