| ECG电流调控模式在256层螺旋CT冠脉成像中的应用 |
| |
| 引用本文： | 郭铁刚,田新华,弓婷婷,杨哲,李思慧,李波.ECG电流调控模式在256层螺旋CT冠脉成像中的应用[J].中国实验诊断学,2011,15(3):465-468. |
| |
| 作者姓名： | 郭铁刚 田新华 弓婷婷 杨哲 李思慧 李波 |
| |
| 作者单位： | 1. 北京理工大学社区卫生服务中心(北京理工大学医院),放射科,北京,100081
2. 吉林大学第二医院,放射线科 |
| |
| 摘 要： | 目的比较256层螺旋CT冠脉成像中ECG电流调控模式及回顾性心电门控扫描的图像质量和病人的辐射剂量。方法对62例怀疑冠心病患者进行256层螺旋CT冠状动脉造影,患者随机分成两组,A组采用回顾性心电门控扫描成像,B组采用ECG电流调控模式成像,对两组患者的图像质量进行主观及客观评价,客观评价包括信号噪声比及对比度噪声比,同时对患者的辐射剂量进行比较。结果 A组及B组的图像信号噪声比分为（14.41±1.05）和（15.07±3.29）,差异无统计学意义（t=-1.07,P=0.29）。两组图像对比度噪声比分别为（12.03±0.98）和（12.64±3.02）,差异无统计学意义（t=-1.08,P=0.28）。A组及B组的有效剂量分别为（10.77±0.96）mSv和（8.59±2.50）mSv,差异有统计学意义（t=4.59,P〈0.001）。结论 256层螺旋CT冠状动脉造影中,与回顾性心电门控扫描比较,ECG电流调控模式在没有降低图像质量的情况下,射线剂量降低约20.2%,病变检出的准确率达95.7%。
|
| 关 键 词： | 体层摄影术 CT ECG电流调控 |
The application of 256-slice CT coronary angiography with ECG-controlled tube current modulation |
| |
| GUO Tie-gang,TIAN Xin-hua,GONG Ting-ting,et al..The application of 256-slice CT coronary angiography with ECG-controlled tube current modulation[J].Chinese Journal of Laboratory Diagnosis,2011,15(3):465-468. |
| |
| Authors: | GUO Tie-gang TIAN Xin-hua GONG Ting-ting |
| |
| Institution: | GUO Tie-gang,TIAN Xin-hua,GONG Ting-ting,et al.(The Hospital of Beijing Institute of Technology,Beijing 100081,China) |
| |
| Abstract: | Objective Compare image quality and radiation dose for 256-slice computed tomography(CT) coronary angiography obtained with retrospective ECG gating and ECG-controlled tube current modulation.Methods 256-slice computed tomography(CT) coronary angiography was performed in 62 patients who doubted coronary atherosclerotic disease.Patients were divided into two groups,group A was performed with the retrospective ECG gating modulation,and group B was performed with the ECG-controlled tube current modulation.Comp... |
| |
| Keywords: | CT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
