mriutils

Utilities for calculations related to MRI

MRIError

calculate_dwell_time(water_fat_shift, …)

Calculate the dwell time

MRIError

class nibabel.mriutils.MRIError

Bases: ValueError

__init__($self, /, *args, **kwargs)

Initialize self. See help(type(self)) for accurate signature.

calculate_dwell_time

nibabel.mriutils.calculate_dwell_time(water_fat_shift, echo_train_length, field_strength)

Calculate the dwell time

Parameters
water_fat_shiftfloat

The water fat shift of the recording, in pixels.

echo_train_lengthint

The echo train length of the imaging sequence.

field_strengthfloat

Strength of the magnet in Tesla, e.g. 3.0 for a 3T magnet recording.

Returns
dwell_timefloat

The dwell time in seconds.

Raises
MRIError

if values are out of range