ReconstIvimFlow
Workflow for Intra-voxel Incoherent Motion reconstruction and for
computing IVIM metrics. Performs a IVIM reconstruction on the files
by ‘globing’ input_files
and saves the IVIM metrics in a directory
specified by out_dir
.
Parameters
- input_files : string
- Path to the input volumes. This path may contain wildcards to
process multiple inputs at once.
- bvalues_files : string
- Path to the bvalues files. This path may contain wildcards to use
multiple bvalues files at once.
- bvectors_files : string
- Path to the bvalues files. This path may contain wildcards to use
multiple bvalues files at once.
- mask_files : string
- Path to the input masks. This path may contain wildcards to use
multiple masks at once. (default: No mask used)
- split_b_D : int, optional
- Value to split the bvals to estimate D for the two-stage process of
fitting
(default 400)
- split_b_S0 : int, optional
- Value to split the bvals to estimate S0 for the two-stage process
of fitting.
(default 200)
- b0_threshold : int, optional
- Threshold value for the b0 bval.
(default 0)
- save_metrics : variable string, optional
- List of metrics to save.
Possible values: S0_predicted, perfusion_fraction, D_star, D
(default [] (all))
- out_dir : string, optional
- Output directory (default input file directory)
- out_S0_predicted : string, optional
- Name of the S0 signal estimated to be saved
(default: ‘S0_predicted.nii.gz’)
- out_perfusion_fraction : string, optional
- Name of the estimated volume fractions to be saved
(default ‘perfusion_fraction.nii.gz’)
- out_D_star : string, optional
- Name of the estimated pseudo-diffusion parameter to be saved
(default ‘D_star.nii.gz’)
- out_D : string, optional
- Name of the estimated diffusion parameter to be saved
(default ‘D.nii.gz’)
References
[Stejskal65] | Stejskal, E. O.; Tanner, J. E. (1 January 1965).
“Spin Diffusion Measurements: Spin Echoes in the
Presence of a Time-Dependent Field Gradient”. The
Journal of Chemical Physics 42 (1): 288.
Bibcode: 1965JChPh..42..288S. doi:10.1063/1.1695690. |
[LeBihan84] | Le Bihan, Denis, et al. “Separation of diffusion
and perfusion in intravoxel incoherent motion MR
imaging.” Radiology 168.2 (1988): 497-505. |