Fig. 7
![Fig. 7](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40658-021-00400-8/MediaObjects/40658_2021_400_Fig7_HTML.png)
Average CRCmax (left), CRCmean (middle) and CRCpeak (right) for all 6 Gallium-68 (blue curve) and the 12 Fluorine-18 (red curve) acquisitions. All Fluorine-18 acquisitions have been reconstructed with PSF6.4/5, and the Gallium-68 includes all PSF6.4/5 and BPL800 reconstructions. The error bars represent the standard deviation between sites. Significant difference was noticed for the 10-mm sphere at the 5% significance level for CRCmean