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

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

International Society of Magnetic Resonance in Medicine ESMRMB Joint Annual Meeting, Paris, Fransa, 16 - 21 Haziran 2018, cilt.26, ss.1-4

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 26
  • Basıldığı Şehir: Paris
  • Basıldığı Ülke: Fransa
  • Sayfa Sayıları: ss.1-4
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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.