摘要：
目的 探讨心电门控双源CT血管造影(DSCTA)诊断单心房(SA)的价值.方法 对29例单心房患者行DSCTA进行分型诊断,并观察其合并畸形.结果 29例中,心房正位14例(14/29,48.28％),心房反位6例(6/29,20.69％),心房不定位9例(9/29,31.03％,包括右心房异构8例,左心房异构1例);合并畸形39种228处,其中23例(23/29,79.31％)支气管、肺形态与心房位置相对应,包括心房正位13例、右心房异构7例及心房反位3例.结论 DSCTA可准确诊断单心房及合并畸形;支气管、肺形态特征有助于识别左、右心耳.%Objective To investigate the value of ECG-gated dual-source computed tomography angiography (DSCTA) in the diagnosis of single atrium (SA).Methods DSCTA was performed in 29 patients with SA.The classification diagnosis was made,and the complicated deformities were observed.Results Among 29 patients,atrial situs solitus was found in 14 (14/29,48.28％),atrial situs inversus was found in 6 (6/29,20.69％) and atrial situs ambiguous was found in 9 (9/29,31.03％,including right atrial isomerism in 8 and left atrial isomerism in 1 patient).The patients complicated with 39 kinds,totally 228 deformities.The bronchi and lung structures were found in the same position as atrium in 23 patients (23/29,79.31％),including atrial situs solitus in 13,right atrial isomerism in 7 and atrial situs inversus in 3 patients.Conclusion DSCTA can accurately diagnose SA and associated abnormalities.The features of bronchus and lung structures are helpful to identifying left and right atrial appendage.
