Nonuniformity Correction Scheme Based on 3-dimensional Visualization of MRI Images

MRI 영상의 3차원 가시화를 통한 영상 불균일성 보정 기법

  • 김형진 (연세대 전산학과, (주)에이아이랩) ;
  • 서광덕 (연세대 컴퓨터정보통신공학부)
  • Received : 2009.12.10
  • Accepted : 2010.01.26
  • Published : 2010.04.30


Human body signals collected by the MRI system are very weak, such that they may be easily affected by either external noise or system instability while being imaged. Therefore, this paper analyzes the nonuniformity caused by a design of the RF receiving coil in a low-magnetic-field MRI system, and proposes an efficient method to improve the image uniformity. In this paper, a method for acquiring 3D bias volume data by using phantom data among various methods for correcting such nonuniformity in MRI image is proposed, such that it is possible to correct various-sized images. It is shown by simulations that images obtained by various imaging methods can be effectively corrected using single bias data.


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