MRI of biopsy needles by susceptibility mapping based on Wiener filter F and L1-regularization. Conference Paper uri icon


  • Biopsy needles are devices that have been used for intravenous therapy. However, the high susceptibility of needles results in signal loss and distortion which makes the location of needles hard to identify in the MRI images. A variety of approaches has been proposed to quantify the susceptibility of the materials being imaged because susceptibility is an intrinsic property that can be used to make a good contrast between different materials. Although previous techniques on susceptibility mapping seem quite effective, they usually consume too much time due to the iterations. In this paper, a method based on Wiener filter is developed to improve the speed of susceptibility mapping. Simulation and phantom experiment demonstrate the effectiveness and high efficiency of the proposed method.

name of conference

  • 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

published proceedings

  • Annu Int Conf IEEE Eng Med Biol Soc

author list (cited authors)

  • Tao Yang, .., & Ji, J.

citation count

  • 0

complete list of authors

  • Ji, Jim

publication date

  • August 2015