Imaging and localizing interventional devices by susceptibility mapping using MRI

Ying Dong, Zheng Chang, Jim Ji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

MRI has been used for imaging interventional procedures with devices such as brachytherapy seeds, biopsy needles, markers, and stents. However, the high susceptibility of these devices leads to signal loss and distortion in the MRI images. Previously, we proposed a method to generate positive contrast of the brachytherapy seeds using a regularized L1 minimization algorithm. In this paper, we further developed and tested the method to image larger interventional devices based on susceptibility mapping. Computer simulations and experiments were performed using phantoms made of platinum wires and titanium needles. The results show that the proposed method provide positive contrast images of devices, therefore improves the visualization and localization of the devices.

Original languageEnglish
Title of host publication2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1541-1544
Number of pages4
ISBN (Electronic)9781424479290
DOIs
Publication statusPublished - 2 Nov 2014
Externally publishedYes
Event2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 - Chicago, United States
Duration: 26 Aug 201430 Aug 2014

Other

Other2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
CountryUnited States
CityChicago
Period26/8/1430/8/14

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ASJC Scopus subject areas

  • Health Informatics
  • Computer Science Applications
  • Biomedical Engineering

Cite this

Dong, Y., Chang, Z., & Ji, J. (2014). Imaging and localizing interventional devices by susceptibility mapping using MRI. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 (pp. 1541-1544). [6943896] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMBC.2014.6943896