The value of low-dose prospective ECG-gated dual-source CT angiography in the diagnosis of coarctation of the aorta in infants and children
The value of low-dose prospective ECG-gated dual-source CT angiography in the diagnosis of coarctation of the aorta in infants and children
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DOI：
10.1016/j.crad.2011.12.007
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发表时间：
2012-08-01
影响因子：
2.6
通讯作者：
Zhang, H.
中科院分区：
文献类型：
--
作者：
Nie, P.;Wang, X.;Zhang, H.
目的：目的探讨前瞻性心电图（ECG）门控双源CT（DSCT）在主动脉缩窄（Coarctation of the aortic，CoA）诊断中的价值。材料与方法：17例临床怀疑患有CoA的患者接受前瞻性ECG门控DSCT血管造影和经胸超声心动图（TTE）检查。所有患者均行手术治疗。以手术结果为参考标准，比较DSCT血管造影和TTE诊断的准确性。使用五点量表评价图像质量。结果：17例患者经DSCT血管造影诊断为CoA，16例经TTE诊断为CoA。总共有46个单独的心血管异常被手术结果证实。DSCT血管造影和TTE诊断符合率分别为96.32%和97.06%。DSCT与TTE诊断符合率无显著性差异（χ 2 = 0，p> 0.05）。图像质量平均评分为4.2 +/-0.8。平均有效剂量为0.69 ± 0.09 mSv。结论：前瞻性心电门控DSCT与低辐射剂量是一种有价值的技术，在诊断CoA的婴儿和儿童。(C)2012年皇家放射科医师学院。由爱思唯尔有限公司出版。保留所有权利。
AIM: To investigate the value of prospective electrocardiogram (ECG)-gated dual-source computed tomography (DSCT) in the diagnosis of coarctation of the aorta (CoA).MATERIALS AND METHODS: Seventeen patients clinically suspected of having CoA underwent prospective ECG-gated DSCT angiography and transthoracic echocardiography (TTE). Surgery was performed in all patients. The diagnostic accuracy of DSCT angiography and TTE was compared with the surgical findings as the reference standard. Image quality was evaluated using a five-point scale. Effective radiation dose was calculated from the dose length product (DLP).RESULTS: CoA was diagnosed in 17 patients by DSCT angiography and in 16 patients by TTE. A total of 46 separate cardiovascular abnormalities were confirmed by surgical findings. The diagnostic accuracy of DSCT angiography and TTE was 96.32% and 97.06%, respectively. There was no significant difference in the diagnostic accuracy between DSCT angiography and TTE (chi(2) = 0, p > 0.05). The mean score of image quality was 4.2 +/- 0.8. The mean effective dose was 0.69 +/- 0.09 mSv.CONCLUSION: Prospective ECG-gated DSCT with a low radiation dose is a valuable technique in the diagnosis of CoA in infants and children. (C) 2012 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.