simulate_magnetization_derivative

Array<cfloat, 2> compas::simulate_magnetization_derivative(const CudaContext &context, int field, Array<cfloat, 2> echos, TissueParameters parameters, FISPSequence sequence, float delta = DEFAULT_FINITE_DIFFERENCE_DELTA)

Calculate the derivative of the magnetization at echo times given by simulate_magnetization.

Parameters:

• context – The context.

• field – One of the fields given by TissueParameterField.

• echos – The echos calculated by simulate_magnetization.

• parameters – The tissue parameters.

• sequence – The FISP sequence

• delta – The Δ used for calculating the finite difference method.

Returns:

An array of dimensions [nreadouts, nvoxels] giving the derivative over the given field of the magnetization at each voxel for each readout.

Array<cfloat, 2> compas::simulate_magnetization_derivative(const CudaContext &context, int field, Array<cfloat, 2> echos, TissueParameters parameters, pSSFPSequence sequence, float delta = DEFAULT_FINITE_DIFFERENCE_DELTA)

Calculate the derivative of the magnetization at echo times given by simulate_magnetization.

Parameters:

• context – The context.

• field – One of the fields given by TissueParameterField.

• echos – The echos calculated by simulate_magnetization.

• parameters – The tissue parameters.

• sequence – The pSSFP sequence

• delta – The Δ used for calculating the finite difference method.

Returns:

An array of dimensions [nreadouts, nvoxels] giving the derivative over the given field of the magnetization at each voxel for each readout.