摘要
目的 评价多层螺旋CT及其后处理技术在评价颈部肿瘤气管侵犯的应用价值 ,探讨颈部肿瘤气管侵犯的诊断标准。资料与方法 对 2 0例颈部气管旁恶性肿瘤患者 (2 2个肿瘤 )行前瞻性的术前CT检查 ,3位医师双盲法评价横断面扫描图像、多平面重建 (MPR)和容积再现 (VR)图像上颈部肿瘤与气管的关系 ,对比手术及病理结果 ,进行统计学分析。结果 对气管受侵的判断 ,MPR的准确性 (90 .9% )与横断面 (86 .4 % )相仿 (P =1.0 0 0 ) ;对气管受侵的诊断价值 ,气管MPR和VR评分≥ 3分者分别占 6 8.2 %、2 2 .7% (P <0 .0 1) ;肿瘤与气管交角≥ 90°时气管受侵多于交角 <90°时 (P <0 .0 5 )。结论 对气管受侵的判断 ,横断面是基本诊断方法 ,MPR可为横断面提供重要的补充信息 ,气管VR价值有限 ,MPR对判断气管受侵的应用价值高于气管VR。
Objective To assess the application of multislice helical CT and its postprocessing imaging techniques in patients with head and neck malignant tumors with respects to the tracheal invasion. Materials and Methods 20 patients (22 tumors) were scanned prospectively with helical CT(GE Lightspeed Ultra 8). Axial CT (ACT), MPR and VR images correlated with surgical and pathological findings were evaluated by three radiologists blindly and analysed statisticaly. Results In evaluation of tracheal involvement, the accuracy of MPR was similar to the ACT (90.9% vs, 86.4%, P=1.000). As to the evaluation of the tracheal involvement by tumors with MPR and VR, a score of ≥3 was 68.2% and 22.7% (P<0.01) respectively. In patients with ≥90° cross-angle between the tumor and the trachea, the trachea tended to be involved more significantly than <90° cross-angle (P<0.05).Conclusion In the evaluation of tracheal involvement, the ACT is a basic means, the MPR technique could offer the suplementary informations, the VR have limited value in recognizing invasion of the trachea, the MPR have more diagnostic value than VR in the evaluation of trache invasion.
出处
《临床放射学杂志》
CSCD
北大核心
2004年第11期941-945,共5页
Journal of Clinical Radiology
