Peng Liqing, Yang Zhigang, Yu Jianqun, Chu Zhigang, Chen Dongdong, Luo Yi
Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2013 Feb;30(1):89-94.
The purpose of this study was to explore the clinical value of ECG-gated dual-source CT angiography (DSCTA) in evaluating coarctation of aorta (CoA). 23 patients suspected with CoA underwent DSCTA and transthoracic echocardiography (TTE). Surgical results were taken as reference standard. 23 patients were diagnosed with CoA, 12 cases had focal stenosis of aorta, while 11 had tubular stenosis. 19 cases were associated with other cardiovascular malformations, including 5 cases of hypoplastic aortic arch, 5 of patent ductus arteriosus, 10 of ventricular septal defect, 2 of bicuspid aortic valve, 4 of collateral arteries, 2 of aberrant left subclavian artery and 2 of persistent left superior vena cava, respectively. The mean diameter of stenotic segment of aorta was (7.0 +/- 3.7) mm. In 9 patients with tubular CoA, the diameter and length of stenotic segment of aorta were (6.2 +/- 7. 3) mm and (29.2 +/- 5.9) mm, respectively. The accuracies of DSCTA and TTE in the diagnosis of CoA were 100% and 91.3% (P > 0.05), respectively. It is well concluded that ECG-gated DSCTA could accurately evaluate CoA and associated cardiovascular malformations, and provide detailed anatomic information before surgery.
本研究的目的是探讨心电图门控双源CT血管造影（DSCTA）在评估主动脉缩窄（CoA）中的临床价值。23例疑似CoA的患者接受了DSCTA和经胸超声心动图（TTE）检查。手术结果作为参考标准。23例患者被诊断为CoA，其中12例为主动脉局灶性狭窄，11例为管状狭窄。19例合并其他心血管畸形，其中主动脉弓发育不全5例、动脉导管未闭5例、室间隔缺损10例、二叶式主动脉瓣2例、侧支动脉4例、左锁骨下动脉异常2例、永存左上腔静脉2例。主动脉狭窄段的平均直径为（7.0±3.7）mm。9例管状CoA患者主动脉狭窄段的直径和长度分别为（6.2±7.3）mm和（29.2±5.9）mm。DSCTA和TTE诊断CoA的准确率分别为100%和91.3%（P>0.05）。结论：心电图门控DSCTA能够准确评估CoA及相关心血管畸形，并在手术前提供详细的解剖信息。
