多层螺旋CT和经胸超声心动图诊断法洛四联症并发畸形的价值比较

目的:比较多层螺旋CT(multislice spiral CT,MSCT)和经胸超声心动图(transthoracic echocardiography,TTE)在法洛四联症(tetralogy of Fallot,TOF)并发畸形的诊断价值。方法:138例诊断TOF的患者术前均行MSCT及TTE检查,以术后诊断结果为金标准,利用四格表法计算MSCT与TTE诊断TOF并发畸形的真实性评价指标,并加以比较。结果:MSCT与TTE均能对TOF做出明确诊断,但对并发畸形的诊断MSCT的灵敏度、特异度和准确度均显著优于TTE(分别为88%vs.74%,P<0.05;95%vs.81%,P<0.05;90%vs.76%,P<0.01)。结论:MSCT对TOF并发畸形诊断的真实性优于TEE。

Clinical significance of multislice spiral computed tomography in diagnosis and therapy of tetralogy of Fallot

AIM:To evaluate the role of multislice spiral computed tomography(MSCT) in the diagnosis and therapy of tetralogy of Fallot(TOF).METHODS:A cohort of 138 TOF patients was enrolled in the study.Before surgery,each patient underwent MSCT and transthoracic echocardiography(TTE).Results were compared with postsurgical diagnosis,and diagnostic accuracy of MSCT and TTE were assessed.RESULTS:Both MSCT and TTE made definitive diagnoses of TOF.However,diagnostic accuracy of MSCT and TTE in the merger deformities with TOF was 88% and 74%,respectively.MSCT was superior to TTE in detecting merger deformities of TOF(χ2=4.821,P=0.0281).CONCLUSION:MSCT is a reliable technique for diagnosis of TOF,with higher accuracy especially in TOF patients with merger deformities.MSCT provides an important basis for operative procedure and prognosis for TOF patients with.