Metabolite Specific
x_epi: An EPI sequence for X-Nucleus imaging
usage: x_epi [-h] [-name NAME] [-grd_path PATH] [-rf_path PATH] [-formula FORMULA] [-use_sinc] [-flip ANGLE] [-freq_off OFFSET] [-sinc_dur DUR] [-sinc_frac FRAC] [-sinc_tbw TBW]
[-size RO PE SLC] [-pf_pe FRAC] [-pf_pe2 FRAC] [-z_centric]
Named Arguments
- -name
Metabolite name
Metabolite Specific Waveforms
- -grd_path
Path to gradient file from Spectral-Spatial RF Toolbox
Default: “/Users/blazeyt/Documents/code/x_epi/x_epi/../seq/siemens_singleband_pyr_3T.GRD”
- -rf_path
Path to RF file from Spectral-Spatial RF Toolbox
Default: “/Users/blazeyt/Documents/code/x_epi/x_epi/../seq/siemens_singleband_pyr_3T.RF”
- -formula
Formula for scaling SSRF gradient where x is slice thickness in mm
Default: “1”
Metabolite Specific Excitation
- -use_sinc
Use sinc pulse instead of an ssrf pulse
Default: False
- -flip
Flip angle [deg]
Default: 90
- -freq_off
Frequency offset [Hz]
Default: 0
- -sinc_dur
Duration of sinc pulse [ms]
Default: 4
- -sinc_frac
Center fraction of sinc pulse
Default: 0.5
- -sinc_tbw
Time-bandwidth product of sinc pulse
Default: 4
Metabolite Specific Imaging Parameters
- -size
Grid size in readout, phase, and slice dimensions
Default: [16, 16, 16]
- -pf_pe
Partial Fourier in phase encoding dimension
Default: 1
- -pf_pe2
Partial Fourier in second phase encoding dimension
Default: 1
- -z_centric
Use centric encoding instead of linear for second phase encoding dimension.
Default: False
Each metabolite must be preceded by -met.