img_k1.c File Reference

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

Include dependency graph for img_k1.c:

Go to the source code of this file.

Functions
int	img_k1_using_ki (DFT *input, IMG *dyn_img, int frame_nr, IMG *ki_img, IMG *k1_img, IMG *k2k3_img, char *status)

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Function Documentation

int img_k1_using_ki	(	DFT *	input,
		IMG *	dyn_img,
		int	frame_nr,
		IMG *	ki_img,
		IMG *	k1_img,
		IMG *	k2k3_img,
		char *	status
	)

Computing pixel-by-pixel the K1 for irreversible PET tracers using previously determined Ki (K1*k3/(k2+k3) and bilinear regression.

Returns:

Returns 0 if succesful, and >1 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
frame_nr	Nr of frames that will be included in the fit [3-frame_nr]
ki_img	Pointer to previously calculated Ki image
k1_img	Pointer to initiated IMG structure where K1 values will be placed
k2k3_img	Pointer to initiated IMG structure where (k2+k3) values will be placed; enter NULL, if 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 52 of file img_k1.c.

References MODEXT_TEST.