| 心率对16层螺旋CT冠状动脉造影图像质量的影响 |
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| 引用本文： | 许尚文,成官迅,陈自谦,张雪林,曾建华,李天然,钱根年. 心率对16层螺旋CT冠状动脉造影图像质量的影响[J]. 临床军医杂志, 2006, 34(1): 34-36 |
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| 作者姓名： | 许尚文 成官迅 陈自谦 张雪林 曾建华 李天然 钱根年 |
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| 作者单位： | 解放军南京军区福州总院,医学影像中心,福建,福州,350025;南方医科大学南方医院,医学影像中心,广东,广州,510515 |
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| 摘 要： | 目的探讨心率对16层螺旋CT冠状动脉造影图像质量的影响。方法80例健康体检者行16层螺旋CT回顾性心电门控条件下冠状动脉造影。每位患者的4条冠状动脉分支(左冠状动脉主干、左前降支、左回旋支、右冠状动脉)分别用于图像质量分析。结果心率≤65次/m in有89.3%(100/112支)的图像可用于诊断;心率66~80次/m in有81.1%(198/244支)的图像可用于诊断;心率>80次/m in有64.3%(36/56支)的图像可用于诊断;心律不齐或前后波动>5次/m in有25%(8/32支)的血管可用于诊断。结论MSCTCA图像质量受心率影响,并与之呈负相关。
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| 关 键 词： | 冠状血管造影术 X线计算机 体层摄影术 |
| 文章编号： | 1671-3826（2006）01-0034-03 |
| 收稿时间： | 2005-11-08 |
| 修稿时间： | 2005-11-08 |
Coronary Angiography with 16-slice Spiral CT: Influence of Heart Rate on Images |
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| Xu Shang-wen,Cheng Guan-xun,Chen Zi-qian,Zhang Xue-lin,Zeng Jian-hua,Li Tian-ran,Qian Gen-nian. Coronary Angiography with 16-slice Spiral CT: Influence of Heart Rate on Images[J]. Clinical Journal of Medical Officer, 2006, 34(1): 34-36 |
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| Authors: | Xu Shang-wen Cheng Guan-xun Chen Zi-qian Zhang Xue-lin Zeng Jian-hua Li Tian-ran Qian Gen-nian |
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| Affiliation: | 1. Department of Radiology, Fuzhou General Hospital of Nanjing Military Region, PLA, Fuzhou 350025, China; 2. Department of Radiology, Nanfang Hospital, Nanfang Medical University, Guangzhou 510515, China |
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| Abstract: | Objective To evaluate the influence of heart rate and reconstruction window on image quality of 16-slice spiral CT coronary angiography(MSCTCA).Methods Retrospective ECG-gated MSCTCA were performed in 80 healthy cases.Four coronary(LM,LAD,LCX,RCA) segments were analyzed in each patient with regard to image quality.Results As a result,89.3%(100/112) of the coronary segments were sufficient for analysis in the patients with a heart rate of lower than 65 bpm,81.1%(198/244) with 66~80 bpm,64.3%(36/56) with higher than 80 bpm,and 25%(8/32) with arrhythmia or change in heart rate more than 5 bpm,respectively. Conclusion Image quality of MSCTCA is highly dependent on heart rate.There is an inverse relationship between heart rate and MSCTCA image quality. |
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| Keywords: | coronary angiography x-ray computed tomography |
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