Accelerating acquisition strategies for low-frequency conductivity imaging using MREIT

Yizhuang Song, Jin Keun Seo, Munish Chauhan, Aprinda Indahlastari, Neeta Ashok Kumar, Rosalind Sadleir

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

We sought to improve efficiency of magnetic resonance electrical impedance tomography data acquisition so that fast conductivity changes or electric field variations could be monitored. Undersampling of k-space was used to decrease acquisition times in spin-echo-based sequences by a factor of two. Full MREIT data were reconstructed using continuity assumptions and preliminary scans gathered without current. We found that phase data were reconstructed faithfully from undersampled data. Conductivity reconstructions of phantom data were also possible. Therefore, undersampled k-space methods can potentially be used to accelerate MREIT acquisition. This method could be an advantage in imaging real-time conductivity changes with MREIT.

Original languageEnglish (US)
Article number045011
JournalPhysics in Medicine and Biology
Volume63
Issue number4
DOIs
StatePublished - Feb 13 2018

    Fingerprint

Keywords

  • electrical impedance tomography
  • k-space undersampling
  • MRI methods

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

Cite this