Measurement of Radio Frequency Magnetic Field
A high quality of magnetic fields is one of the basic prerequisites for a perfect operation of the MR tomographic scanner. Magnetic susceptibility of materials that are used for body implants causes much distortion in MR images. The paper deals with mapping the radio frequency magnetic field induction in the vicinity of these materials with the aim of characterizing the magnetic field and comparing the results with fields simulated in the ANSYS program. Magnetic resonance method of radio frequency magnetic field mapping was verified and optimized for both the characterizing of MR imaging deffecting coil and the effects of effectrical conducting samples. The designed method is based on optimized spin-echo imaging sequence with small flip angle.
K. Bartusek E. Gescheidtova
Institute of Scientific Instruments, Academy of Sciences of the Czech Republic, Czech Republic Faculty of Electrical Engineering and Communication, Brno University of Technology, Czech Republic
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
237-240
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）