mdreg.array_2cfm_lin

mdreg.array_2cfm_lin(signal, aif=None, time=None, baseline=None, Hct=None, **kwargs)

Linearised 2-compartment filtration model fit

Parameters:

• signal (numpy.ndarray) – Signal data Spatial array with signal intensities over an additional time dimension.

• aif (numpy.ndarray) – Arterial input function. 1D array of input artery signal intensities, length equal to the number of time points in the signal data.

• time (numpy.ndarray) – Timepoints of the signal data

• baseline (int) – Baseline. Number of time points to use for the baseline signal.

• Hct (float) – Haematocrit.

Returns:

• fit (numpy.ndarray) – Fitted data

• par (numpy.ndarray) – Fitted model parameters The parameters are: Fp, Tp, PS, Te, giving N=4.