期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

磁性纳米粒子成像高灵敏度正交接收系统

High Sensitivity Orthogonal Receiving System for Preclinical Magnetic Particle Imaging
下载PDF
导出
摘要 本文通过有限元分析设计高灵敏度磁性纳米粒子成像正交接收系统,提升MPI信号检测灵敏度和磁场匀质性,用于预临床小动物级MPI成像。设计的正交接收线圈组新增加x向接收线圈,并且在z向优化了成像视野面积与接收灵敏度,在预临床小动物级MPI成像平台中经过仿真验证、制备、调试、校验,完成了模型成像和小动物成像实验,结果表明本文方法有效提升了图像质量和图像对比度. In this paper,a high-sensitivity orthogonal receiving system was designed based on finite-unit analysis to improve MPI signal detection sensitivity and magnetic field homogeneity for preclinical MPI of small animal imaging.The orthogonal receiving coil set was designed to add a new x-direction receiving coil,to improve the reception sensitivity and optimize imaging field of view area in z-direction.Simulation experiments,construction and calibration were carried out in the preclinical MPI platform with the high sensitivity orthogonal receiving systems to perform phantom imaging and small animal imaging experiments.Results show that the new orthogonal system can improve the image quality and contrast-noise rate effectively.
作者 史玥婷 任仕伟 王晓华 薛丞博 SHI Yueting;REN Shiwei;WANG Xiaohua;XUE Chengbo(School of Integrated Circuits and Electronics,Beijing Institute of Technology,Beijing 100081,China;Yangtze Delta Region Academy,Beijing Institute of Technology,Jiaxing,Zhejiang 314019,China;Chongqing Center for Microelectronics and Microsystems,Beijing Institute of Technology,Chongqing 401332,China)
机构地区 北京理工大学集成电路与电子学院 北京理工大学长三角研究院(嘉兴) 北京理工大学重庆微电子中心
出处 《北京理工大学学报》 EI CAS CSCD 北大核心 2022年第3期312-317,共6页 Transactions of Beijing Institute of Technology
基金 重庆市自然科学基金资助项目(cstc2021jcyj-msxmX1090)。
关键词 磁性纳米粒子成像 正交线圈组 接收灵敏度 磁场匀质性 magnetic particle imaging orthogonal coils sensitivity homogeneity
分类号 TN7 [电子电信—电路与系统]
  • 相关文献

参考文献1

二级参考文献12

  • 1Hennig J, Welz A M, Schuhz G, et al. Parallel imaging in non-bijective, eurvilinear magnetic field gradients: a concept study[J]. MAGMA, 2008,21(1-2):5- 14.
  • 2GaHichan G, Cocosco C A, Dewdney A. et al. Simultaneously driven linear and nonlinear spatial encoding fields in mri[J].Magn Reson Med, 2011,65(3):702 -714.
  • 3Stockmann J P, Galiana G, Tam I., et al. In vivo o- space imaging with a dedicated 12 cm z2 insert coil on a human 3t scanner using phase map calibration[J]. MagnReson Med, 2013,69(2):444 - 455.
  • 4Stockmann J P, Ciris P A, Galiana G, et al. ()-space imaging: highly efficient parallel imaging using second order nonlinear fields as encoding gradients with nophaseeneoding[J]. Magn Reson Med, 2010, 64(2): 447 - 456.
  • 5Tam L K, Stockmann J P, Galiana G, et al. Null space imaging., nonlinear magnetic encoding fields designed complementary to receiver coil sensitivities for improved acceleration in parallel imaging[J]. Magn Reson Med, 2012,68 (4) : 1166 - 1175.
  • 6Poole M. Improved equipment and techniques for dynamic shimming in high field MRI[D]. Nottingham.. University of Nottingham, 2007.
  • 7Schultz G, Ullmann P, Lehr H, et al. Reconstruction of mri data encoded with arbitrarily shaped, curvilinear, nonbijective magnetic fields [J]. Magn Reson Med,2010,64(5)~1390 -1403.
  • 8Stockmann J P, Ciris P A, Constable R T. Efficient o- space parallel imaging with higher-order encoding gradients and no phase encoding[C]//Proc Intl Soc Mag Reson Med Honolulu..[s. n. ], 2009:762.
  • 9Pruessmann K P, Weiger M, Rnert P B, et al. Advances in sensitivity encoding with arbitrary k-space trajectories [J]. Magnetic Resonance in Medicine, 2001,46:638 - 651.
  • 10Welz A M, Zaitsev M, Jia F, et al. Development of a non-shielded patloc gradient insert {or human head imaging [C] // Proc Intl Soc Mag Reson Med. Honolulu.. [s. n. ], 2009..3073.

共引文献1

北京理工大学学报
2022年 第3期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部