patlak_analysis

petpal.kinetic_modeling.graphical_analysis.patlak_analysis(tac_times_in_minutes: numpy.ndarray, input_tac_values: numpy.ndarray, region_tac_values: numpy.ndarray, t_thresh_in_minutes: float) → numpy.ndarray

Performs Patlak analysis given the input TAC, region TAC, times and threshold.

Parameters:

• tac_times_in_minutes (np.ndarray) – Array of times in minutes.

• input_tac_values (np.ndarray) – Array of input TAC values

• region_tac_values (np.ndarray) – Array of ROI TAC values

• t_thresh_in_minutes (np.ndarray) – Threshold time in minutes. Line is fit for all values after the threshold.

Returns:

(np.ndarray) – Array containing \((K_{i}, V_{0})\) values.

Important

• We assume that the input TAC and ROI TAC values are sampled at the same times.