管径因素对冠状动脉支架CTA成像影响分析 |
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引用本文: | 蓝博文,周玉祥,黎昕,钟华.管径因素对冠状动脉支架CTA成像影响分析[J].中国CT和MRI杂志,2012,10(4):40-42. |
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作者姓名: | 蓝博文 周玉祥 黎昕 钟华 |
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作者单位: | 广东省惠州市中心人民医院放射科,广东,惠州,516001 |
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基金项目: | 惠州市2011年科研立项重点课题(编号:[2011]18号) |
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摘 要: | 目的评价管径因素对冠状动脉支架CTA成像的影响。材料与方法回顾性分析40例73个冠状动脉支架置入术后患者CTA资料,所有患者行CTA检查后三个月内均完成冠状动脉造影CAG检查。评价相同材质(均为不锈钢)不同管径支架CTA图像对支架壁及支架内管腔的显示情况,并对各支架内再狭窄情况进行评估,与CAG对照,评价不同管径支架对冠脉支架CTA成像的影响。结果内径≥3.5mm支架较内径≤3.0mm支架CTA金属伪影越小,内腔显示越好,CTA诊断准确性高(88.4%vs62.9%,P=0.008)。结论内径≥3.5mm支架伪影少,图像可评价率及诊断准确率高更有利于支架CTA成像;内径≤3.0mm支架伪影较重,诊断准确率较低。临床上需对内径≤3.0mm支架CTA诊断结果正确评价。
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关 键 词: | 冠状动脉 支架 体层摄影术 X线计算机 |
The Influence of Stent Caliber in Coronary Stent CTA |
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Institution: | LAN Bo-wen,ZHOU Yu-xiang,LI Xin,et al.Department of Radiology,the Central People’s Hospital Huizhou,Huizhou Guangdong 516001,China |
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Abstract: | Objective To analyze effect of stent caliber in coronary stent CT angiography.Materials and methods The CT arteriography imaging of 40 patients with a total of 73 stents were analysis retrospectively.All of the patients received CAG detection after CT examination within 3 months.We paid attention that how the different side of stent were displaied in CTA,and CTA result were compared with CAG.Result Stents of diameter ≥ 3.5mm lead to better stent images and high accuracy of diagnosis than stents of diameter ≤ 3.0mm.Conclusion Stents with diameter ≥ 3.5mm lead to better stent images.We should pay attention that the ISR may be misdiagnosis in stents of diameter ≤ 3.0mm which may lead to more artifacts on CTA. |
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Keywords: | Coronary Artery Stent Tomography X-ray Computed |
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