先天性肺静脉异位连接的电子束CT诊断

目的 探讨电子束ＣＴ对肺静脉异位连接的诊断价值。方法 对１４例ＥＢＣＴ诊断的肺静脉异位连接进行回顾性分析。ＥＢＣＴ检查采用增强单层容积扫描，层厚为３ｍｍ，扫描时间为１００毫秒，所用对比剂为非离子型碘对比剂。所有患者均行表面阴影显示法进行三维重建。所有病例均行超声心动图检查。其中８例行心血管造影检查，有２例尚有手术病理对照。结果ＥＢＣＴ诊断完全型肺静脉异位连接１０例，其中心上型６例，心脏型４例；心血

Comprehensive evaluation of anomalous pulmonary venous connection by electron beam computed tomography as compared with ultrasound

Objective To investigate the clinical value of electron beam computed tomography (EBCT) in diagnosis of anomalous pulmonary venous connection Methods Retrospective analysis on 14 cases with anomalous pulmonary venous connection was performed using EBCT volume scan The slice thickness and scan time were 3 mm and 100 ms respectively Non ionic contrast medium was applied Three dimensional reconstruction of EBCT images were carried out on all cases Meanwhile, ultrasound echocardiography was performed on all patients Conventional cardiovascular angiography was performed on 8 patients and 2 cases received operation Results Ten patients with total anomalous pulmonary venous connection, including 6 cases of supracardiac type and 4 cases of cardiac type, were proved by EBCT examination Among them, 3 cases of abnormal pulmonary venous drainage were not revealed by conventional cardiovascular angiography Among four patients with partial pulmonary venous connection, including cardiac type in 2 cases, supracardiac type and infracardiac type in 1 case respectively, only one of them was demonstrated by echocardiography Conclusion EBCT has significant value in diagnosis of anomalous pulmonary venous connection which may not be detectable with echocardiography or even cardiovascular angiography