| 磁共振成像射频线圈技术 |
| |
| 引用本文： | 张宏杰,宋枭禹,包尚联,俎栋林.磁共振成像射频线圈技术[J].中国医学影像技术,2005,21(9):1440-1441. |
| |
| 作者姓名： | 张宏杰 宋枭禹 包尚联 俎栋林 |
| |
| 作者单位： | 1. 北京大学医学物理和工程北京市重点实验室,北京,100871;海军总医院,北京,100037
2. 北京大学医学物理和工程北京市重点实验室,北京,100871 |
| |
| 基金项目： | 国家自然科学基金，北京市共建项目，教育部科学技术研究项目 |
| |
| 摘 要： | 磁共振成像设备采集到的射频信号很弱,极易受到来自外界噪声的干扰,因此提高图像信噪比是磁共振成像的首要任务.而射频线圈作为信号接受链前端,则是信噪比的决定因素之一.本文首先分类探讨了射频线圈各种技术的基本原理,然后对它们的应用特点进行了阐述,并对影响线圈性能的参数进行了优化分析,旨在达到提高磁共振临床应用的质量控制、质量保证水平以及优化图像质量的目的.
|
| 关 键 词： | 磁共振成像 射频线圈 |
| 文章编号： | 1003-3289（2005）09-1440-02 |
| 收稿时间： | 2005-03-24 |
| 修稿时间： | 2005-08-12 |
MRI radiofrequency coil technology |
| |
| ZHANG Hong-jie,SONG Xiao-yu,BAO Shang-lian and ZU Dong-lin.MRI radiofrequency coil technology[J].Chinese Journal of Medical Imaging Technology,2005,21(9):1440-1441. |
| |
| Authors: | ZHANG Hong-jie SONG Xiao-yu BAO Shang-lian and ZU Dong-lin |
| |
| Institution: | Beijing Key Laboratory of Medical Physics & Engineering, Peking University, Beijing 100871, China;General Navy Hospital, Beijing 100037, China;Beijing Key Laboratory of Medical Physics & Engineering, Peking University, Beijing 100871, China;Beijing Key Laboratory of Medical Physics & Engineering, Peking University, Beijing 100871, China;Beijing Key Laboratory of Medical Physics & Engineering, Peking University, Beijing 100871, China |
| |
| Abstract: | The magnetic resonance imaging signal acquired from body is weak and easy to be interfered by noises. The radiofrequency coil, as the first stage of the receive chain, is the main factor of signal-to-noise ratio. This paper, firstly, discussed the basic principle and application characteristics of kinds of radiofrequency coils, then expatiated the parameters that affect the performance of coils. |
| |
| Keywords: | Magnetic resonance imaging Radiofrequency coil |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国医学影像技术》浏览原始摘要信息 |
| 点击此处可从《中国医学影像技术》下载免费的PDF全文 |
|
