Fast imaging for magnetic resonance electrical impedance tomography.
In magnetic resonance electrical impedance tomography (MREIT), currents are injected into an object, the resulting magnetic flux density is measured using MRI, and the conductivity distribution reconstructed using these MRI data. The relatively long acquisition times of conventional MREIT methods limit the signal averaging rate and are susceptible to motion artifacts. In this study, we reconstructed the conductivity distribution of an agarose gel phantom from data acquired in under a minute using a single-shot, spin echo, echo planar imaging (SS-SEPI) pulse sequence. The results demonstrate that SS-SEPI can be used for MREIT data acquisition.
Hamamura
Mark J
MJ
Tu & Yuen Center for Functional Onco-Imaging, University of California, Irvine, CA 92697, USA. markjham@uci.edu
Muftuler
L Tugan
LT
D016477:Artifacts; D017097:Electric Impedance; D007091:Image Processing, Computer-Assisted; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D019047:Phantoms, Imaging; D014054:Tomography