目的 探讨双源CT Flash扫描模式应用于复杂性先天性心脏病的诊断价值.方法 对20例经手术证实的复杂先心病患者的心脏双源CT和超声心动图检查资料进行回顾性分析.结果 心脏内部畸形共41处,双源CT检出30处,超声心动图检出40处,两者诊断正确率分别为73.17%(30/41)和97.56%(40/41),差异具有统计学意义(x2=7.91,P=0.0049);心脏血管连接处畸形共有14处,双源CT检出13处,超声心动图检出12处,两者诊断正确率分别为92.86%(13/14)和85.71%(12/14),差异无统计学意义(x2=0.74,P=0.3875);心脏周围血管畸形41处,双源CT检出39处,超声心动图检出28处,两者诊断正确率分别为95.12%(39/41)和68.29%(28/41),差异具有统计学意义(x2=8.15,P=0.0042).全部畸形共96处,双源CT检出82处,正确率为85.42%,超声心动图检出80处,正确率为83.33%,两者比较差异无统计学意义(x2=0.15, P=0.6985).结论 双源CT对于先天性心脏病心脏周围血管部分畸形的诊断具有明显优势;对于整体诊断,双源CT和超声心动图的诊断能力没有明显差异.%Objective To evaluate the diagnostic value and surgery significance of dual-source CT Flash spiral model for diagnosing complex congenital heart disease. Methods Retrospectively analysis the 20 children with complex congenital heart disease, all of them were examined by the Flash CT and echocardiograph,and received surgical operation treatment. Results There were 41intracardiac deformities.30(73.17%) were detected by Flash CT and 40(97.56%) were detected by echocardiograph,a statistically significant difference between the diagnosis accuracy of Flash CT and echocardiograph (x2=7.91 ,P=0.0049). There were 14 heart-vessel conjunction deformities.13 (92.86%) were detected by Flash CT and 12 (85.71%) were detected by echocardiograph,their diagnosis accuracy had no difference (x2=0.74,P=0.3875).There were 41 great vessel deformities. 39 (95.12%) were detected by Flash CT and 28 (68.29%) were detected by echocardiograph, a statistically significant difference between the diagnosis accuracy of Flash CT and echocardiograph (x2=8.1, P=0.0042). There were 96 deformities in all.82 (85.42%)were detected by Flash CT and 80 (83.33%) were detected by echocardiograph, their diagnosis accuracy had no statistically difference (x2=0.15,P=0.6985). Conclusion Compared with the echocardiograph, Flash CT has the obvious advantage in extracardiac part;The overall diagnosis of complex congenital heart disease, the diagnostic ability of Flash CT and echocardiograph have no obvious statistically difference.
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