mrpro.data.traj_calculators.KTrajectoryIsmrmrd

class mrpro.data.traj_calculators.KTrajectoryIsmrmrd[source]

Bases: object

Get trajectory in ISMRMRD raw data file.

The trajectory in the ISMRMRD raw data file is read out [TRA].

The value range of the trajectory in the ISMRMRD file is not well defined. Here we simple normalize everything based on the highest value and ensure it is within [-pi, pi]. The trajectory is in the shape of the unsorted raw data.

References

[TRA]

ISMRMRD trajectory https://ismrmrd.readthedocs.io/en/latest/mrd_raw_data.html#k-space-trajectory

__init__()

__call__(acquisitions: Sequence[Acquisition]) → KTrajectoryRawShape[source]

Read out the trajectory from the ISMRMRD data file.

Parameters:

acquisitions (Sequence[Acquisition]) – list of ismrmrd acquisistions to read from. Needs at least one acquisition.

Returns:

trajectory in the shape of the original raw data.

__eq__(value, /)

Return self==value.

__new__(**kwargs)