Diffusion tensor magnetic resonance electrical impedance tomography versus magnetic resonance conductivity tensor imaging


Creative Commons License

Sadighi M., Öktem S. F., Eyüboğlu B. M.

International Society of Magnetic Resonance in Medicine ESMRMB Joint Annual Meeting, Paris, France, 16 - 21 June 2018, vol.26, pp.1-4

  • Publication Type: Conference Paper / Full Text
  • Volume: 26
  • City: Paris
  • Country: France
  • Page Numbers: pp.1-4
  • Middle East Technical University Affiliated: Yes

Abstract

In this study, recently proposed diffusion tensor magnetic resonance electrical impedance tomography (DT-MREIT) is compared with magnetic

resonance conductivity tensor imaging (MRCTI) using simulated measurements generated by means of a finite element model. Both methods are

used to reconstruct conductivity tensor images of an anisotropic conductivity distribution. In DT-MREIT, extra cellular conductivity and diffusivity

ratio (ECDR) is recovered from its transverse gradient. In MRCTI, the conductivity tensor is reconstructed from two current profiles by using

anisotropic B sensitivity (AB S) method with a stronger regularization. Reconstructed conductivity images suggest that MRCTI provides better

accuracy than DT-MREIT, at lower SNR levels.