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目的:利用螺旋CT血管造影(SCTA),评价中央型肺癌对中央肺血管侵犯的准确性及临床价值。方法:对27例病变在肺门区、术前诊断为中央型肺癌的患者进行SCTA检查,并进行多平面重建(MPR)、曲面重建(CPR)和表面遮盖重建(SSD),肺门血管受侵分为5级,对比影像诊断结果与手术及病理结果。结果:以手术所见和病理观察为金标准,SCTA判断血管与肿瘤关系的正确率高于横断面CT,分别为93.61%、84.04%和88.46%和73.07%,有统计学意义(χ2=4.87,χ2=18.61;P<0.05,P<0.001)。结论:SCTA能明确判断中央肺动静脉侵犯的部位、范围和程度,应成为中央型肺癌术前检查、确定手术方案的必要手段。
Objective: To evaluate the accuracy and clinical value of central pulmonary carcinoma for central pulmonary vascular invasion by using spiral CT angiography (SCTA). Methods: Twenty-seven patients with lesions in the hilar region and preoperatively diagnosed as central lung cancer underwent SCTA and underwent multiple planar reconstruction (MPR), surface reconstruction (CPR) and surface occlusion reconstruction (SSD) Invaded into 5 levels, contrast imaging diagnosis and surgical and pathological findings. Results: Surgical findings and pathological findings were the gold standard. The accuracy of SCTA in predicting the relationship between blood vessels and tumors was 93.61%, 84.04%, 88.46% and 73.07%, respectively, with statistical significance (χ2 = 4.87 , χ2 = 18.61; P <0.05, P <0.001). Conclusion: SCTA can clearly determine the location, extent and extent of central pulmonary arteriovenous invasion. It should be a necessary measure for preoperative examination of central lung cancer to determine the surgical plan.