Induced current magnetic resonance electrical impedance tomography of brain tissues based on the J-substitution algorithm: a simulation study.

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  • Author(s): Liu Y;Liu Y; Zhu S; He B
  • Source:
    Physics in medicine and biology [Phys Med Biol] 2009 Jul 21; Vol. 54 (14), pp. 4561-73. Date of Electronic Publication: 2009 Jun 26.
  • Publication Type:
    Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: IOP Publishing Country of Publication: England NLM ID: 0401220 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0031-9155 (Print) Linking ISSN: 00319155 NLM ISO Abbreviation: Phys Med Biol Subsets: MEDLINE
    • Publication Information:
      Original Publication: Bristol : IOP Publishing
    • Subject Terms:
      Algorithms* ; Models, Neurological*; Brain/*physiology ; Diagnosis, Computer-Assisted/*methods ; Magnetic Resonance Imaging/*methods ; Plethysmography, Impedance/*methods; Computer Simulation ; Electric Impedance ; Humans
    • Abstract:
      We have investigated induced current magnetic resonance electrical impedance tomography (IC-MREIT) by means of computer simulations. The J-substitution algorithm was implemented to solve the IC-MREIT reconstruction problem. By providing physical insight into the charge accumulating on the interfaces, the convergence characteristics of the reconstruction algorithm were analyzed. The simulation results conducted on different objects were well correlated with the proposed theoretical analysis. The feasibility of IC-MREIT to reconstruct the conductivity distribution of head-brain tissues was also examined in computer simulations using a multi-compartment realistic head model. The present simulation results suggest that IC-MREIT may have the potential to become a useful conductivity imaging technique.
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    • Grant Information:
      R21 EB006070-02 United States EB NIBIB NIH HHS; R01EB007920 United States EB NIBIB NIH HHS; R21006070 United States PHS HHS; R21 EB006070 United States EB NIBIB NIH HHS; R01 EB007920 United States EB NIBIB NIH HHS; R21 EB006070-01A1 United States EB NIBIB NIH HHS; R01 EB007920-02 United States EB NIBIB NIH HHS
    • Publication Date:
      Date Created: 20090627 Date Completed: 20091001 Latest Revision: 20240312
    • Publication Date:
      20240312
    • Accession Number:
      PMC2810423
    • Accession Number:
      10.1088/0031-9155/54/14/012
    • Accession Number:
      19556689