Gary H. Glover, PhD

sprlio  (spiral in/out, GRE or SE)

Can be triggered per scan or per slice; can be clustered or equispaced acquisition; can obtain up to 32 slices per 2 seconds.

Recon generates nii images as well as onefiles.

If physio monitoring is selected on Advanced Tab will generate .physio file

Replacement for fMRI.

epigg  (epi, GRE or SE)

Based on EPI, adds k-space filtering options, trigger options, physio monitoring, phase encode ordering.

Used for fMRI.

episms  (EPI simultaneous multi-slice, GRE or SE)

Typically acquires up to 6 simultaneous slices with TR 350ms using 32 channel head coil.

Recon can take several hours; images are in nii format sent to DICOM computer

Used for fMRI.

B₀ Map  (GRE, magnetic field mapping)

Generates field maps from two concatenated TE acquisitions, as DICOM images.

Used for distortion correction in brain imaging.

Daniel Spielman, PhD & Meng Gu, PhD

mega-press  (proton spectroscopy)

Spectral editing for GABA or glutathione.

Water referencing is built-in for quantification and artifact correction.

Used for assessments of neurochemicals in the brain.

gems (proton spectroscopy)

Spectral editing for GABA or glutathione with suppression of macromolecules.

Water referencing is built-in for quantification and artifact correction.

Used for assessments of neurochemicals in the brain.

Marcus Alley, PhD

mfast  (SPGR, GRE, SSFP, DESS, PSIF)

A generalized replacement for 'efgre3d.e', this sequence provides the most common gradient-recalled echo (GRE, as opposed to spin-echo) image contrasts. In addition to using GE's ARC for parallel imaging, it's also possible to do Poisson sampling for compressed-sensing reconstructions.

Used for anything requiring GRE contrasts with generally better flexibility compared to the product sequence.

mm4dflow (vascular phase-contrast)

The original 4D-Flow, this sequence works in both 2D and 3D to acquire phase-contrast flow data in either 1 or 3 flow directions. Generally the sequence is run in a gated-mode to provide temporal resolution, but it can be run non-gated for constant flow phantoms. The reconstructions are run automatically and the resulting images are automatically sent to Arterys for visualization.