右室双出口的320排CT动态容积扫描技术与诊断

Diagnosis of 320-row detector dynamic volume CT in complex congenital heart disease with double outlet right ventricle

目的分析320排CT动态容积扫描技术在复杂性先天性心脏病右室双出口(DORV)中的诊断价值。方法收集第三军医大学新桥医院经手术证实的DORV 78例,A组病例36例,行320排CT动态容积扫描,采用心脏节段分析法分析CT图像,B组病例42例,行传统64层CT扫描;比较两种方法的诊断准确率。结果 320排CT动态容积扫描诊断36例右室双出口,与手术结果一致。43例对照组B组的诊断准确率为90.7%,与A组比较差异无统计学意义(P>0.05)。78例DORV均合并有室间隔缺损,合并肺动脉狭窄56例,房间隔缺损34例,肺动脉高压21例,动脉导管未闭16例,主动脉缩窄9例。结论 320排CT动态容积扫描对诊断先天性心脏病DORV具有重要的价值。

Objective To explore the diagnosis value of 320-row detector dynamic volume CT in Complex congenital heart disease （CCHD） with double outlet right ventricle（DORV）. Methods Seventy-eight patients who proveed DORV by surgery in Xinqiao Hospital of Third Military Medical University were reviewed. Thirty-six patients of group A performed 320-row detector dynamic volume CT by using segmental analysis,and were compared with the group B（42 Cases） performed conventional 64-slice CT respectively. Results In 36 cases of DORV confirmed by surgery in group A,MSCT provided accurate qualitative diagnosis in all cases. The accuracy rate of diagnosis of the group B was 90.7 ~. There was no significant differences compared with the group A （P^0.05）. There were ventricular septal defect in all the 78 cases, pulmonary stenosis in 56 cases, atrial septal defect in 34 cases, pulmonary hypertension in 21 cases,patent ductus arteriosus in 16 cases,coarctation of aorta in 9 cases. Conclusion The 320-row detector dynamic volume CT has important diagnostic value for DORV of the anatomical diagnosis.