EJNMMI Research

Table 2 Bi-exponential fit slope constants for probe-derived, image-derived and manually sampled input functions

From: Use of a beta microprobe system to measure arterial input function in PET via an arteriovenous shunt in rats

	Subject								Mean	SD
	1	2	3	4	5	6	7	8
Slope 1
Probe IF	4.609	4.181	3.646	3.470	4.989	3.552	3.181	3.658	3.911	0.582
Manual IF	7.627	4.847	3.646	7.746	5.582	6.038	3.215	4.591	5.411	1.570
Image-derived IF	11.626	7.983	8.705	10.502	9.327	6.343	5.888	8.149	8.565	1.815
Slope 2
Probe IF	0.048	0.038	0.046	0.028	0.047	0.025	0.039	0.038	0.039	0.008
Manual IF	0.042	0.018	0.050	0.043	0.039	0.031	0.008	0.026	0.032	0.013
Image-derived IF	0.095	0.068	0.051	0.056	0.082	0.040	0.059	0.072	0.065	0.017

IF, input function; SD, standard deviation.

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