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目的 与超声心动图及手术对照 ,探讨电子束CT(EBCT)在婴幼儿先天性心脏病 (简称先心病 )诊断中的价值。方法 对 80例临床怀疑或诊断为先心病的婴幼儿行EBCT心脏单层增强扫描及电影序列扫描 ,将结果与超声心动图 (TTE)及手术结果作对照。其中 39例经手术确诊。结果全组共 16种先心病 ,发绀类 5 3例 ,非发绀类 2 7例。 39例手术证实的先心病共 10 1处畸形 ,其中EBCT诊断准确率 96 % (97/ 10 1) ,TTE诊断准确率 87% (88/ 10 1)。 80例患儿EBCT共发现畸形 2 0 6处 ,TTE发现 15 9处。EBCT与TTE诊断的准确率差异有非常显著性意义 (χ2 =6 .2 31,P <0 .0 1)。结论EBCT可以清晰客观地显示先心病病理解剖形态 ,特别对复杂畸形的节段分析有重要价值。与TTE相比 ,EBCT在反映主动脉病变、肺动脉发育情况及肺静脉异位引流等方面较TTE直观和优越。
Objective To evaluate the value of electron beam computed tomography (EBCT) in the diagnosis of congenital heart disease in infants and young children (referred to as CHD). Methods Totally 80 cases of clinically suspected or diagnosed CHD children underwent echocardiography (EBCT) single-slice enhancement scan and sequence scan. The results were compared with those of echocardiography (TTE) and surgical findings. 39 cases were diagnosed by surgery. Results A total of 16 kinds of congenital heart disease, cyanotic class of 53 cases, non-cyanotic class of 27 cases. 39 cases of congenital heart disease confirmed a total of 101 deformities, including EBCT diagnostic accuracy of 96% (97/101), TTE diagnostic accuracy 87% (88/101). 80 cases of children with EBCT found a total of 260 deformities, TTE found 15 9. EBCT and TTE diagnostic accuracy difference was significant (χ2 = 6.231, P <0.01). Conclusion EBCT can clearly and objectively display the pathological anatomy of congenital heart disease, especially for the segmental analysis of complex deformity. Compared with TTE, EBCT is more intuitive and superior than TTE in reflecting aortic lesions, pulmonary artery development and pulmonary venous drainage.