Generate maps of tensor-derived parameters
tensor2metric [ options ] tensor
tensor: the input tensor image.
-adc image compute the mean apparent diffusion coefficient (ADC) of the diffusion tensor. (sometimes also referred to as the mean diffusivity (MD))
-fa image compute the fractional anisotropy (FA) of the diffusion tensor.
-ad image compute the axial diffusivity (AD) of the diffusion tensor. (equivalent to the principal eigenvalue)
-rd image compute the radial diffusivity (RD) of the diffusion tensor. (equivalent to the mean of the two non-principal eigenvalues)
-cl image compute the linearity metric of the diffusion tensor. (one of the three Westin shape metrics)
-cp image compute the planarity metric of the diffusion tensor. (one of the three Westin shape metrics)
-cs image compute the sphericity metric of the diffusion tensor. (one of the three Westin shape metrics)
-value image compute the selected eigenvalue(s) of the diffusion tensor.
-vector image compute the selected eigenvector(s) of the diffusion tensor.
-num sequence specify the desired eigenvalue/eigenvector(s). Note that several eigenvalues can be specified as a number sequence. For example, ‘1,3’ specifies the principal (1) and minor (3) eigenvalues/eigenvectors (default = 1).
-modulate choice specify how to modulate the magnitude of the eigenvectors. Valid choices are: none, FA, eigval (default = FA).
-mask image only perform computation within the specified binary brain mask image.
-info display information messages.
-quiet do not display information messages or progress status; alternatively, this can be achieved by setting the MRTRIX_QUIET environment variable to a non-empty string.
-debug display debugging messages.
-force force overwrite of output files (caution: using the same file as input and output might cause unexpected behaviour).
-nthreads number use this number of threads in multi-threaded applications (set to 0 to disable multi-threading).
-config key value (multiple uses permitted) temporarily set the value of an MRtrix config file entry.
-help display this information page and exit.
-version display version information and exit.
Basser, P. J.; Mattiello, J. & Lebihan, D. MR diffusion tensor spectroscopy and imaging. Biophysical Journal, 1994, 66, 259-267
Westin, C. F.; Peled, S.; Gudbjartsson, H.; Kikinis, R. & Jolesz, F. A. Geometrical diffusion measures for MRI from tensor basis analysis. Proc Intl Soc Mag Reson Med, 1997, 5, 1742
Tournier, J.-D.; Smith, R. E.; Raffelt, D.; Tabbara, R.; Dhollander, T.; Pietsch, M.; Christiaens, D.; Jeurissen, B.; Yeh, C.-H. & Connelly, A. MRtrix3: A fast, flexible and open software framework for medical image processing and visualisation. NeuroImage, 2019, 202, 116137
Copyright: Copyright (c) 2008-2023 the MRtrix3 contributors.
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For more details, see http://www.mrtrix.org/.