Low frequency magnetic resonance conductivity imaging by means of oscillating gradient fields


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EROĞLU H. H. , SADİGHİ M., EYÜBOĞLU B. M.

Annual Meeting of the International Society for Magnetic Resonance in Medicine (ISMRM), Paris, France, 16 - 21 June 2018, vol.26, pp.2287

  • Publication Type: Conference Paper / Full Text
  • Volume: 26
  • City: Paris
  • Country: France
  • Page Numbers: pp.2287

Abstract

Recently, low frequency (LF) magnetic resonance electrical conductivity imaging by means of oscillating gradient fields is reported to be infeasible. In these

studies, LF phase measurements are modeled with radio frequency (RF) leakage due to geometric shifts in MR images. Although RF leakage is related with

conductivity, we have not come across a conductivity image reconstructed using this model. In this study, LF conductivity imaging is evaluated for an MRI

pulse sequence including multiple gradient pulses. Geometric shifts are evaluated by focusing on the MR magnitude. A procedure is proposed for the

reconstruction of conductivity, based on LF phase measurements.