A Magnetic Resonance Imaging Receiver Design Based on NI PXIe-7966R

doi:10.11938/cjmr20172565

Abstract

Abstract: A magnetic resonance imaging receiver design based on NI PXIe-7966R is proposed, with which the magnetic resonance signals are sampled directly and down-converted digitally, the raw data are uploaded and the magnetic resonance image are restored. The system-level digital signal processing (DSP) development tools offered by NI LabVIEW field programmable gate array (FPGA) was used for FPGA function modeling, simulation and automatic code generation of hardware description language (HDL). It was very flexible during the digital down conversion (DDC) designing. The sampling rate of this module was 50 Mbps, and the receiver bandwidth could be varied between 100 Hz and 1 MHz. The experimental results showed that the receiver design is a high performance magnetic resonance receiver solution.

Key words: MRI, digital down conversion (DDC), field programmable gate array (FPGA), digital receiver

CLC Number:

O482.53

HU Jin-jie, YAO Jun-jiang, XU Jun-Cheng, LIU Jun, WANG Zi, JIANG Yu. A Magnetic Resonance Imaging Receiver Design Based on NI PXIe-7966R[J]. Chinese Journal of Magnetic Resonance, 2017, 34(4): 489-497.

References

[1]VILLA M,TIAN F,COFRANCESCO P,et al.High-resolution digital quadrature detection[J].Rev Sci Instrum,1996,67(6):2123-2129. [2]LI G Y,XIE H B.Digital quadrature detection in nuclear magnetic resonance spectroscopy[J].Rev Sci Instrum,1999,70(2):1511-1513. [3]XU Q,SHEN J,JIANG Y,et al.A digital receiver for nuclear magnetic resonance spectrometer[J].Chinese J Magn Reson,2005,22(4):357-365.徐勤,沈杰,蒋瑜,等.一体化核磁共振数字接收机的设计[J].波谱学杂志,2005,22(4):357-365. [4]GU X F,JIANG Z D,ZU D L,et al.PCI-based digital frequency source for MRI[J].Chinese J Med Imaging Technol,2005,21(6):959-962.谷晓芳,姜忠德,俎栋林,等.基于PCI总线的MRI数字频率源设计[J].中国医学影像技术,2005,21(6):959-962. [5]LIU Y,LI G.F_TDM receiver for parallel acquisition of MRI[J].Electron Lett,2008,44(7):454-456. [6]YAN Z,ZHAO W Y,WANG H X,et al.Design of a parallel high-speed receiving system[J].Chinese J Magn Reson,2011,28(2):198-206.严政,赵武贻,王慧贤,等.磁共振信号并行高速接收系统设计[J].波谱学杂志,2011,28(2):198-206. [7]ZHU L,FEI Y C.Application of AD6636 in a wideband digital intermediate frequency receiver[J].Modern Electronic Technique,2005,28(23):39-41.朱良,费元春.AD6636在宽带数字中频接收机中的应用[J].现代电子技术,2005,28(23):39-41. [8]LYONS R G.Understanding cascaded integrator-comb filters[J].Embedded Systems Programming,2005(4):14-16,18,20,23-27. [9]DOLECEK G J,MITRA S K.Simple method for compensation of CIC decimation filter[J].Electron Lett,2008,44(19):1162-1163. [10]XILINX.Virtex-5 FPGA data sheet:DC and switching characteristics[OL].2010.05,http://www.xilinx.com/support. [11]俎栋林.核磁共振成像学[M].北京:高等教育出版社,2004. [12]李睿.磁共振成像谱仪的软件设计及成像序列研究[M].北京:北京大学信息科学技术学院,2009. [13]LI R,XIAO L,WANG W M.The design of a digital receiver system for mri scanners[J].Chinese J Magn Reson,2009,26(3):359-368.李睿,肖亮,王为民.磁共振成像信号的数字化接收系统设计[J].波谱学杂志,2009,26(3):359-368. [14]AELTERMAN J,LUONG H Q,GOOSSENS B,et al.Augmented Lagrangian based reconstruction of non-uniformly sub-Nyquist sampled MRI data[J].Signal Process,2011,91(12):2731-2742. [15]WANG H,SUN H Y,TANG W N,et al.An FPGA-based multi-channel receiver module for magnetic resonance imaging[J].Chinese J Magn Reson,2012,29(2):239-247.王洪,孙宏宇,汤伟男,等.基于单片FPGA的多通道磁共振成像接收模块[J].波谱学杂志,2012,29(2):239-247. [16]ZHENG C B,XIE J Y,LI J Q,et al.Digital down-conversion technology based on DSP Builder[J].Information Technology,2015,5:44-47.郑呈斌,谢君尧,李建奇,等.基于DSP Builder的数字下变频技术[J].信息技术,2015,5:44-47. [17]QIN Y,MAO Y F,QIN S R.FIR digital filter design based on proximate best uniform approximation theory[J].Journal of Chongqing University (nature science edition),2006,29(5):12-15.秦毅,毛永芳,秦树人.基于近似最佳一致逼近原理的FIR数字滤波器[J].重庆大学学报(自然科学版),2006,29(5):12-15. [18]MICHAL C A,BROUGHTON K,HANSEN E.A high performance digital receiver for home-built nuclear magnetic resonance spectrometers[J].Rev Sci Instrum,2002,73(2):453-458. [19]SHEN J,XU Q,LIU Y,et al.Home-built magnetic resonance imaging system (0.3 T) with a complete digital spectrometer[J].Rev Sci Instrum,2005,76(10):105101. [20]SUN H Y,TANG W N,WANG W M.Improving signal-to-noise ratio in magnetic resonance imaging using dynamic receiver gain[J].Chinese J Magn Reson,2014,31(4):515-522.孙宏宇,汤伟男,王为民.利用动态接收增益提高磁共振成像信噪比的方法[J].波谱学杂志,2014,31(4):515-522. [21]MCCANN A J,WORKMAN A,MCGRATH C.A quick and robust method for measurement of signal-to-noise ratio in MRI[J].Phys Med Biol,2013,58(11):3775-3790.