correction_factor

Import in python using from mcutils.scripts.non_central_chi.variance import correction_factor

mcutils.scripts.non_central_chi.variance.correction_factor(snr, ncoils)

Computes the correction factor

Defined as equation 18 in Koay & Basser (2006, JMR, doi:10.1016/j.jmr.2006.01.016)

Parameters

• snr – true signal over true noise (or the best current estimate of this)

• ncoils – number of coils

Returns

correction factor between true and observed variance