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目的探讨16层螺旋CT血管成像对法洛四联症的CT表现及其诊断应用价值。方法回顾性分析6例经16层螺旋CT对比增强检查的法洛四联症患者结果,6例均有手术结果及超声心动图结果对照。结果16层螺旋CT能清晰显示室间隔缺损、肺动脉或右室流出道狭窄、主动脉骑跨、右心室肥大,诊断符合率为100%;在诊断室间隔缺损程度、主动脉骑跨率方面与超声心动图无明显差异,在诊断肺动脉或右室流出道狭窄程度方面明显优于超声心动图。结论16层螺旋CT与超声心动图检查相结合,可大大提高对法洛四联症的诊断准确率。
Objective To investigate the CT findings of 16-slice spiral CT angiography and its diagnostic value in patients with tetralogy of Fallot. Methods Six patients with tetralogy of Fallot were retrospectively analyzed by 16-slice spiral CT. The results of the surgery and echocardiography were compared in 6 cases. Results 16-slice spiral CT can clearly show the ventricular septal defect, pulmonary artery or right ventricular outflow tract stenosis, aortic riding, right ventricular hypertrophy, the diagnostic accuracy was 100%; in the diagnosis of ventricular septal defect, aortic riding rate and Echocardiography no significant difference in the diagnosis of pulmonary artery or right ventricular outflow tract stenosis was significantly better than echocardiography. Conclusion The combination of 16-slice spiral CT and echocardiography can greatly improve the diagnostic accuracy of tetralogy of Fallot.