Name
Title | ||
|---|---|---|
Stimulus-induced Rotary Saturation (SIRS): a potential method for the detection of neuronal currents with MRI. |
Abstract | ||
|---|---|---|
Neuronal currents produce local transient and oscillatory magnetic fields that can be readily detected by MEG. Previous work attempting to detect these magnetic fields with MR focused on detecting local phase shifts and dephasing in T2 or T2⁎-weighted images. For temporally biphasic and multi-phasic local currents the sensitivity of these methods can be reduced through the cancellation of the accrued phase induced by positive and negative episodes of the neuronal current. The magnitude of the phase shift is also dependent on the distribution of the current within the voxel. Since spins on one side of a current source develop an opposite phase shift relative to those on the other side, there is likely to be significant cancellation within the voxel. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1016/j.neuroimage.2008.05.010 | NeuroImage |
Keywords | Field | DocType |
fMRI,Neuronal current imaging,Rotary saturation,T1rho | Dephasing,Magnetic field,Current source,Imaging phantom,Cognitive psychology,Psychology,Larmor precession,Nuclear magnetic resonance,Dipole,Phase (waves),Local field | Journal |
Volume | Issue | ISSN |
42 | 4 | 1053-8119 |
Citations | PageRank | References |
6 | 0.57 | 7 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Thomas Witzel | 1 | 374 | 28.70 |
| Fa-Hsuan Lin | 2 | 246 | 24.33 |
| Bruce R Rosen | 3 | 128 | 14.76 |
| Lawrence L Wald | 4 | 89 | 8.35 |