QMRITools`GradientTools`
QMRITools`GradientTools`

BmatrixCalc

BmatrixCalc["folder",grads]

calculates the true bmatrix from the exported sequence parameters from the philips scanner that are stored in ""folder"folder" for each of the gradient directions grads.

Details

  • The following options can be given:
  • UseGrad{1, 1, {1, 1}, 1, 1}UseGrad is an option for GradSeq. The default value is {0, 1, {1, 0}, 1} where {grex, gr180, {grepi1, grepi2}, grdiff, grflow}.
    OutputType"Matrix"OutputType is an option for BmatrixCalc. Values can be "Matrix" of "Gradients".
    Method"Numerical"Method is an option for various algorithm-intensive functions that specifies what internal methods they should use.
    StepSizeI0.05StepSizeI is an option for GradBmatrix. Specifies the integration stepsize is Method -> "Numerical" is used.
    UnitMulti 1 ---- 1000UnitMulti is an option for GradSeq. Defaul value is 10^-3. Defines the scaling of the gradient strength.
    PhaseEncoding"A"PhaseEncoding is an options of GradSeq. Values can be "A", "P", "R" and "L".
    FlipAxes{{1, 1, 1}, {1, 1, 1}}FlipAxes is an option for GradSeq. Defaul value is {{1,1,1},{1,1,1}}. First three values are for diffusion gradients last three are for the acquisition gradients.
    SwitchAxes{{1, 2, 3}, {1, 2, 3}}SwitchAxes is an option for GradSeq. Defaul value is {{1,2,3},{1,2,3}}. First three values are for diffusion gradients last three are for the acquisition gradients.