Journal of Northeastern University Natural Science ›› 2015, Vol. 36 ›› Issue (5): 631-635.DOI: 10.12068/j.issn.1005-3026.2015.05.006

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The Analysis of the RF Spoiling for Phase-Contrast Magnetic Resonance Imaging

ZOU Yun-peng, FU Chang-xin, KANG Yan   

  1. School of Sino-Dutch Biomedical & Information Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2014-03-26 Revised:2014-03-26 Online:2015-05-15 Published:2014-11-07
  • Contact: KANG Yan
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Abstract: The effects of RF spoiling was investigated in GRE based 2D phase contrast (PC) MRI.Simulation, flow phantom experiments and in vivo experiments were used to evaluate the effects of RF spoiling in quality of PC MRI image and accuracy of measured flow. The measurements of blood flow with 2D through-plane PC-MRI indicated that there was no difference when sufficient gradient spoiling was applied with or without RF spoiling, but there was a much better result when insufficient gradient spoiling was applied with RF spoiling compared with that without the RF spoiling. And it was also found that the CNR(contrast noise ratio) of the PC-MRI image could be increased with RF spoiling, which made it easier to differentiate the flow and stationary tissue.

Key words: magnetic resonance imaging, phase-contrast, RF spoiling, CNR(contrast noise ratio), gradient echo

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