|
|||||
|
|
| 血管外质子信号增强颈髓功能成像序列参数优化 | |
| 引用本文： | 肖叶玉,沈智威,黎倩仪,成小芳,陈业晞,陈耀文,吴仁华.血管外质子信号增强颈髓功能成像序列参数优化[J].实用医学影像杂志,2011,12(1):1-3. |
| 作者姓名： | 肖叶玉 沈智威 黎倩仪 成小芳 陈业晞 陈耀文 吴仁华 |
| 作者单位： | 1. 汕头大学医学院第二附属医院放射科,广东,汕头,515041 2. 汕头大学医学院第二附属医院外科 3. 汕头大学中心实验室 |
| 基金项目： | 广东省卫生厅医学科研课题，广东省自然科学基金项目，汕头市科技计划项目 |
| 摘 要： | 目的通过优化成像参数,获得一种较高质量的利用血管外质子信号增强的颈髓功能成像。方法采用GRE-echoplan序列中的一种新的血管外质子信号增强(SEEP)磁共振功能成像技术,按TR、TE时间的相关关系,通过固定TR改变TE,同时通过选择使用呼吸门控或心电门控,是否加饱和带等不同参数下获得颈髓功能成像,比较上述不同参数下颈髓fMRI成像的影像质量,包括信噪比、显示激活区部位是否清晰、确定,是否可重复。结果采用SEEP成像技术能实现颈髓功能成像,TR 1065s与TE 45s时能获得较高质量的颈髓功能成像,使用心电门控较不使用心电门控图像质量明显提高,加前饱和带可减少呼吸与吞咽所致的伪影,呼吸门控对图像质量无明显影响。结论 GRE-echo plan序列的SEEP成像技术经优化技术参数后能获得较高质量的颈髓功能成像。 |
| 关 键 词： | 功能成像 颈髓 血管外质子信号增强 优化 |
Optimization of functional magnetic resonance imaging of the human cervical spinal cord by means of signal enhancement by extravascular protons |
|
| Xiao Yeyu,Shen Zhiwei,Li Qianyi,Cheng Xiaofang,Chen Yexi,Chen Yaowen,Wu Renhua.Optimization of functional magnetic resonance imaging of the human cervical spinal cord by means of signal enhancement by extravascular protons[J].Journal of Practical Medical Imaging,2011,12(1):1-3. | |
| Authors: | Xiao Yeyu Shen Zhiwei Li Qianyi Cheng Xiaofang Chen Yexi Chen Yaowen Wu Renhua |
| Institution: | Xiao Yeyu,Shen Zhiwei,Li Qianyi,Cheng Xiaofang,Chen Yexi,Chen Yaowen,Wu Renhua.Department of Radiology,The Second Hospital,Shantou University Medical College,Shantou 515041,China |
| Abstract: | Objective The purpose of the study was to obtain high quality functional magnetic resonance imaging(fMRI) of human cervical spinal cord by using signal enhancement by extravascular protons(SEEP) and optimized parameters.Methods SEEP fMRI(GRE-echo plan) was utilized in this study.The relationship between TR and TE was evaluated by means of altering TE,with TR fixed,meanwhile, the quality of fMRI were compared under the condition that ECG-gating or respiratory gating was selected,fomer saturated bands added o... |
| Keywords: | Magnetic resonance imaging functional(fMRI) Cervical spinal cord Signal enhancement by extravascular protons(SEEP) Optimization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |