Difference between revisions of "Press voxel 3d.m"
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Voxel selection diagnostics function for 3D PRESS sequences. Returns the sample excitation profile. This sequence must be called from the imaging() context, which would provide H, R, K, G, and F. | Voxel selection diagnostics function for 3D PRESS sequences. Returns the sample excitation profile. This sequence must be called from the imaging() context, which would provide H, R, K, G, and F. | ||
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phan=press_voxel_3d(spin_system,parameters,H,R,K,G,F) | phan=press_voxel_3d(spin_system,parameters,H,R,K,G,F) | ||
| − | == | + | ==Parameters== |
parameters.ss_grad_amp - the three amplitudes of slice selection | parameters.ss_grad_amp - the three amplitudes of slice selection | ||
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==See also== | ==See also== | ||
| − | [[press_1d.m]], [[press_2d.m]], [[press_voxel_1d.m]], [[press_voxel_2d.m]], [[imaging.m]] | + | [[press_1d.m]], [[press_2d.m]], [[press_voxel_1d.m]], [[press_voxel_2d.m]], [[imaging.m]], [[basic_1d_hard.m]], [[cpmg_dec.m]], [[epi_2d.m]], [[epi_3d.m]], [[fse.m]], [[grad_echo.m]], [[phase_enc_2d.m]], [[phase_enc_3d.m]], [[slice_select_1d.m]], [[spin_echo.m]], [[spiral.m]], [[udd_dec.m]], [[uhrig_times.m]], [[Built-in_experiments]], [[Imaging_module]], [[Mri_sequence_list]] |
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''Version 2.4, authors: [[Ilya Kuprov]], [[Ahmed Allami]]'' | ''Version 2.4, authors: [[Ilya Kuprov]], [[Ahmed Allami]]'' | ||
Latest revision as of 19:40, 6 June 2026
Voxel selection diagnostics function for 3D PRESS sequences. Returns the sample excitation profile. This sequence must be called from the imaging() context, which would provide H, R, K, G, and F.
Syntax
phan=press_voxel_3d(spin_system,parameters,H,R,K,G,F)
Parameters
parameters.ss_grad_amp - the three amplitudes of slice selection
gradient, T/m
parameters.rf_frq_list - cell array of three vectors of RF frequ-
encies at each pulse slice, Hz
parameters.rf_amp_list - cell array of three vectors of RF
amplitudes at each pulse slice, rad/s
parameters.rf_dur_list - cell array of three vectors of pulse
slice durations, in seconds
parameters.rf_phi - cell array of three pulse phases at
time zero
parameters.max_rank - cell array of three maximum rank in the
Fokker-Planck pulse operator (2 is
usually enough)
Outputs
phan - the excitation profile imprinted into a 3D phantom.
Examples
An example is available in examples/imaging/press_3d_example.m, the output is reproduced below.
Notes
Add 'polyadic' to sys.enable, or this will crash your computer.
See also
press_1d.m, press_2d.m, press_voxel_1d.m, press_voxel_2d.m, imaging.m, basic_1d_hard.m, cpmg_dec.m, epi_2d.m, epi_3d.m, fse.m, grad_echo.m, phase_enc_2d.m, phase_enc_3d.m, slice_select_1d.m, spin_echo.m, spiral.m, udd_dec.m, uhrig_times.m, Built-in_experiments, Imaging_module, Mri_sequence_list
Version 2.4, authors: Ilya Kuprov, Ahmed Allami
