| 夏迎洪,刘红艳,王艳,任永芳,张林川.模拟心率在64排螺旋CT冠状动脉成像中的应用[J].中国医学影像技术,2008,24(12):2013~2016 |
| 模拟心率在64排螺旋CT冠状动脉成像中的应用 |
| Value of coronary arterial imaging with simulated heart rate on 64-slice spiral CT |
| 投稿时间：2008-04-18 修订日期：2008-08-21 |
| DOI： |
| 中文关键词: 心率 冠状血管 体层摄影术,X线计算机 |
| 英文关键词:Heart rate Coronary vessels Tomography, X-ray computed |
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| 中文摘要: |
| 目的 探讨使用模拟心率对心电压过低患者行64排螺旋CT冠状动脉成像的价值。 方法 对29例心电压过低患者,经呼吸训练,获取屏气后心率平稳期的时间和心率值,设置模拟心率行64排螺旋CT冠状动脉成像。 结果 29例患者顺利完成检查,共计290段冠状动脉,其中129段冠状动脉显示为优,107段冠状动脉显示为良,优良率达到81.38%;屏气后扫描和屏气≥8 s后扫描2组图像质量的优等率分别为27.78%、52.00%,χ2检验P<0.05,两组图像优等率差异有统计学意义。 结论 使用模拟心率在64排螺旋CT冠状动脉成像中有一定的临床应用价值。 |
| 英文摘要: |
| Objective To study the value of coronary arterial imaging with simulated heart rate in patients with low electrocardiogram (ECG) peaks on 64-slice spiral CT. Methods Twenty-nine patients underwent 64-slice spiral CT coronary artery angiography with simulated heart rate. After breathholding training, it was possible to obtain a steady heart rate on ECG which was taken as simulated heart rate, and to get the time to steady heart rate. Results All 29 patients were successfully examined, and a total of 290 coronary artery segments were obtained, including 129 segments rated excellent and 107 segments rated as reduced but still diagnostic. Image quality of both rated segments was 81.38%. In the two groups including immediate CT check after breath holding and 8 seconds in advance breathholding before check, the images rated as excellent were 27.78% and 52.00%, respectively (χ2=15.376, P<0.05). Conclusion The usage of simulated heart rate in 64-slice spiral CT coronary artery imaging has some extent applicable value. |
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