coils

Extremely simple coil sensitivity maps.

Probably better to use the generate csm map functions included in ismrmrd-python-tools.

mr_utils.test_data.coils.csm.simple_csm(N, dims=(64, 64))

Generate coil channel sensitivities as linear gradients in N directions.

N – number of coil sensitivities to generate. dims – tuple of dimensions.

N linear gradient gradients of size dims will be generated. These are simple because all we’re doing is generating linear gradients at evenly spaced angles so the resulting maps are square.

TODO: sensitivity maps also need phases, as in: ismrmrdtools.simulation.generate_birdcage_sensitivities

Returns (N x dims[0] x dims[1]) array.