Fig. 2
An example of the graphical layout, showing the distribution of uptake foci in a liver with no confirmed metastases (octreotide(−)/radtech(−)). The observer can freely rotate the image in all planes, allowing the precise interrogation of focal uptake. The entire liver (indicated by the transparent green colour) is segmented. The additional graphs, appearing at the lower right of each panel, show nNUF (y-axis), plotted against threshold index (ThI) (x-axis). Radiolabelled foci are shown coloured. In panel a, the ThI is set for the inspection of high intensity areas. As the ThI is increased (panels b, c, and d), more foci are captured, until foci begin to merge