Chinese Journal of Magnetic Resonance >

2015 , Vol. 32 >Issue 4: 574 - 583

DOI: https://doi.org/10.11938/cjmr20150403

Sequence Development and Parameter Optimization for A Pseudo-Continuous Arterial Spin Labeling Method on 1.5 T Clinical Magnetic Resonance Imaging Systems

  • WEI Qing1 ,
  • 2 ,
  • SONG Rui-bo2 ,
  • ZHOU Xiao-dong2 ,
  • TANG Wei-jun4 ,
  • ZHANG Wei-guo3 ,
  • CHEN Qun1*
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  • 1. Medical Imaging Technology Section (Shanghai Advanced Research Institute, Chinese Academy of Sciences), Shanghai 201210, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Shanghai United Imaging Healthcare Cooperation, Shanghai 201815, China;
    4. Huashan Hospital, Shanghai 200031, China
*Corresponding author： CHEN Qun, Tel: +86-21-67076980, E-mail: qun.chen@sari.ac.cn.

Received date: 2014-12-12

  Revised date: 2015-10-28

  Online published: 2015-12-05

Supported by

中国科学院重点部署资助项目(Y325511211)

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Abstract

Pseudo-continuous arterial spin labeling (pCASL) is perfusion imaging technique that combines the advantages of continuous arterial spin labeling (CASL) and pulsed arterial spin labeling (PASL). In this study, we implemented a pCASL sequence on uMR560 1.5 T MRI systems developed by United Imaging Healthcare Cooperation. Experiments were performed to demonstrate the stability of the pCASL sequence implemented and the accuracy of perfusion quantification. The tagging efficiency was first measured through phantom experiments. In order to achieve the highest signal-to-noise ratio, post-labeling delay time and labeling distance were optimized empirically to be approximately 70 mm blow the imaging slab and 1 200 ms, respectively. Lastly, perfusion-weighted signal intensity and absolute cerebral blood flow (CBF) were measured from 12 normal volunteers using the pCASL sequence implemented, with satisfactory results obtained from 10 subjects. In summary, the pCASL sequence implemented on the uMR560 1.5 T MRI systems can be used for perfusion imaging on human brain, with reasonable stability and accuracy.

Key words： pseudo-continuous arterial spin labeling; cerebral blood flow; tagging distance; post labeling delay time

Cite this article

WEI Qing1 , 2 , SONG Rui-bo2 , ZHOU Xiao-dong2 , TANG Wei-jun4 , ZHANG Wei-guo3 , CHEN Qun1* . Sequence Development and Parameter Optimization for A Pseudo-Continuous Arterial Spin Labeling Method on 1.5 T Clinical Magnetic Resonance Imaging Systems
[J]. Chinese Journal of Magnetic Resonance, 2015 , 32(4) : 574 -583 . DOI: 10.11938/cjmr20150403

References

 


[1]  Detre J A, Leigh J S, Williams D S. Perfusion Imaging[J]. Magn Reson Med, 1992, 23(1): 37－45.

[2]  Dai W Y, Garcia D, Bazelaire C D, et al. Continuous flow-driven inversion for arterial spin labeling using pulsed radio frequency and gradient fields[J]. Magn Reson Med, 2008, 60(6): 1 488－1 497.

[3]  Wu W C, Fernandez-Seara M, Detre J A, et al. A theoretical and experimental investigation of the tagging efficiency of pseudo-continuous arterial spin labeling[J]. Magn Reson Med, 2007, 58(5): 1 020－1 027.

[4]  Tannus A, Garwood M. Adiabatic Pulses[J]. NMR Biomed, 1997, 10(8): 423－434.

[5]  Alsop D C, Detre J A. Reduced transit-time sensitivity in noninvasive magnetic resonance imaging of human cerebral blood flow[J]. J Cerebr Blood F Met, 1996, 16: 1 236－1 249.

[6]  Aslan S, Xu F, Wang P L, et al. Estimation of labeling efficiency in pseudo-continuous arterial spin labeling[J]. Magn Reson Med, 2010, 63(3): 765－771.

[7]  Detre J A, Wang J. Technical aspects and utility of fMRI using BOLD and ASL[J]. Clin Neurophysiol, 2002, 113(5): 621－634.

[8]  Zhang W, Williams D S, Koretsky A P, et al. Measurement of brain perfusion by volume-localized NMR spectroscopy using inversion of arterial water spins: accounting for transit time and cross-relaxation[J]. Magn Reson Med, 1992, 25(3): 362－371.

[9]  Jung Y, Wong E C, Liu T T. Multiphase pseudo-continuous arterial spin labeling (MP-pCASL) for robust quantification of cerebral blood flow[J]. Magn Reson Med, 2010, 64(3): 799－810.

[10] Wong E C, Buxton R B, Frank L R. Quantitative imaging of perfusion using a single subtraction (QUIPSS and QUIPSS 11)[J]. Magn Reson Med, 1998, 39(5): 702－708.

[11] Oguz K K, Golay X, Pizzini F B, et al. Sickle cell disease: continuous arterial spin-labeling perfusion MR imaging in children1[J]. Radiology, 2003, 227(2): 567－574.

[12] Jahanian H, Noll D C, Hernandez-Garcia L. B0 field inhomogeneity considerations in pseudo-continuous arterial spin labeling (pCASL): Effects on tagging efficiency and correction strategy[J]. NMR Biomed, 2011, 24(10): 1 202－1 209.

[13]  Bernstein M A, King R F, Zhou X J. Handbook of MRI Pulse Sequence[M]. America: Elsevier Academic press, 2004.

[14]  Wolf S D, Balaban R S. Magnetization transfer contrast (MTC) and tissue water proton relaxation in vivo[J]. Magn Reson Med, 1989, 10(1): 135－144.

[15]  Siow Tiing-yee(箫庭毅), Chang Chen(张程). MR perfusion imaging: A review of flow sensitive alternating inversion recovery (FAIR) technique(磁振灌流造影：对“流动敏感交互反转恢复的评论”)[J]. Chinese J Magn Reson(波谱学杂志), 2010, 27(3): 289－297.

[16] Zhang Xiao-dong(张晓东). Magnetic resonance imaging of non-human primate ischemic stroke models(灵长类中风模型的磁共振成像)[J]. Chinese J Magn Reson(波谱学杂志) , 2010, 27(4): 548－561.
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