img_patlak.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include "include/libtpcmodext.h"

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Functions
int	img_patlak (DFT *input, IMG *dyn_img, int start, int end, linefit_range fit_range, IMG *ki_img, IMG *ic_img, IMG *nr_img, char *status)

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Function Documentation

int img_patlak	(	DFT *	input,
		IMG *	dyn_img,
		int	start,
		int	end,
		linefit_range	fit_range,
		IMG *	ki_img,
		IMG *	ic_img,
		IMG *	nr_img,
		char *	status
	)

Computing pixel-by-pixel the graphical analysis for irreversible PET tracers (Gjedde-Patlak plot).

Returns:

Returns 0 if succesful, and >0 in case of an error.

Parameters:

input	Pointer to the TAC data to be used as model input. Sample times in minutes. Curve is interpolated to PET frame times, if necessary
dyn_img	Pointer to dynamic PET image data. Image and input data must be in the same calibration units
start	The range of frames where line is fitted, given as the frame start here and next the end index, i.e. [0..frame_nr-1]
end	The range of frames where line is fitted, given as the frame start above and here the end index, i.e. [0..frame_nr-1]
fit_range	Use the whole range or based on data leave out points from the beginning; PRESET or EXCLUDE_BEGIN
ki_img	Pointer to initiated IMG structure where Ki values will be placed
ic_img	Pointer to initiated IMG structure where plot y axis intercept values will be placed; enter NULL, if not needed
nr_img	Pointer to initiated IMG structure where the number of plot data points actually used in the fit is written; enter NULL, when not needed
status	Pointer to a string (allocated for at least 64 chars) where error message or other execution status will be written; enter NULL, if not needed

Definition at line 61 of file img_patlak.c.

References check_times_dft_vs_img(), copy_times_from_img_to_dft(), and MODEXT_TEST.

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