心电门控双源CT血管造影在评价主动脉缩窄中的临床价值  

Clinical Value of ECG-gated Dual-source Computed Tomography and Angiography in Assessing Coarctation of Aorta

作　　者：彭礼清[1] 杨志刚[1] 余建群[1] 禇志刚 陈冬冬[1] 罗艺[1] 

机构地区：[1]四川大学华西医院放射科,成都610041

出　　处：《生物医学工程学杂志》2013年第1期89-94,共6页Journal of Biomedical Engineering

摘　　要：探讨心电门控双源CT血管造影(DSCTA)在评价主动脉缩窄(CoA)中的临床价值。对23例临床怀疑CoA的患者行DSCTA和经胸超声心动图(TTE)检查,将手术结作为金标准。经手术证实23例病例均有主动脉缩,其中12例患者为局限性狭窄,11例为管状缩窄;19例患者伴有其他心血管畸形,其中主动脉弓发育不良5例,动脉导管未闭9例,室间隔缺损10例,二叶主动脉瓣2例,合并侧枝循环形成4例,迷走左锁骨下动脉及2例,残存左上腔静脉2例。23例CoA最窄处直径约(7.0±3.7)mm;9例管状缩窄患者,缩窄段直径约(6.2±7.3)mm,长度约(29.2±5.9)mm。DSCTA和TTE对CoA诊断的准确性分别为100%和91.3%(P>0.05)。本研究结果证明心电门控DSCTA可以准确评价CoA及合并心血管畸形,为术前提供详细的解剖学信息。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 tran- sthoraeic 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 ven- tricular septal defect, 2 of bicuspid aortic valve, 4 of collateral arteries, 2 of aberrant left subclavian artery and 2 of persistent left superior vena eava, 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 cardi- ovascular malformations, and provide detailed anatomic information before surgery.

关 键 词：主动脉缩窄 体层摄影术 X线计算机 血管造影术 

分 类 号：R816.2[医药卫生—放射医学]