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Table 2: Gwet's AC1 between and within readers of 10 randomly selected full-dose images on the tracer uptake in relevant brain regions and on the subjective image quality
Gwet's AC1 Interreader Reproducibility (Reader 1) Reproducibility (Reader 2) Reproducibility (Reader 3)
Normal 0.677 0.727 0.628 1
Entorhinal cortex 0.813 1 1 0.883
Hipp./Amyg./Parahipp. 0.677 0.771 1 1
Inferior/mesial temporal 0.901 1 1 1
Other cortex 0.830 0.872 0.669 1
Primary eloquent cortex 0.967 1 1 1
Quality (high vs low) 0.797 1 0.599 0.760
Note:—Normal indicates no abnormal uptake in any of the selected regions; Hipp., hippocampus; Amyg., amygdala; Parahipp., parahippocampal gyrus.

Gwet's AC1	Interreader	Reproducibility (Reader 1)	Reproducibility (Reader 2)	Reproducibility (Reader 3)
Normal	0.677	0.727	0.628	1
Entorhinal cortex	0.813	1	1	0.883
Hipp./Amyg./Parahipp.	0.677	0.771	1	1
Inferior/mesial temporal	0.901	1	1	1
Other cortex	0.830	0.872	0.669	1
Primary eloquent cortex	0.967	1	1	1
Quality (high vs low)	0.797	1	0.599	0.760