先天性右室流出道狭窄及其合并畸形的MRI

目的：研究MRI诊断小儿先天性右室流出道狭窄及其合并畸形的可靠性及限度。材料和方法：回顾分析15例小儿先天性右室流出道狭窄及其合并畸形的MRI表现，与二维超声心动图．心血管造影和手术对照比较．结果：MRI定性诊断的正确率与心血管造影一致。对其合并畸形的显示，MRI和二维超声心动图各有优缺点，而心血管造影则仍为最佳显示方法．结论：MRI对小儿先天性右室流出道狭窄的定性确诊率为100％，对合并畸形——体肺侧支，冠状动脉的显示随着MRI设备(硬件和软件)的改进，可望进一步提高而替代超声和心血管造影．

MRI Evaluation of Congenital Right Ventricular Outflow Tract Stenosis and its Associated Malformations

To evaluate the reliability and limitation of the MRI in diagnosing congenital right ventricular outflow tract stenosis and its associated malformations.Materials and Methods:Fifteen Children with congenital right ventricular outflow tract stenosis were evaluated with MRI technique echocardiography and angiocardiography were also performed in these children in order to compare with MRI. Results : The accuracy of diagnosis was identical between MRI and angiocardiography. MRI and echocardiography had their own advantages and limitations in the demonstration of the associated malformations and angiocardiography was still the best method.Conclusion: The qualitative diagnosis rate on MRI was 100% in our groups. The demonstration of the associated malformations will be increased by in-proving MR technique.