Fig. 4From: A study of SPECT/CT camera stability for quantitative imagingBox and whisker plot (solid line—median, quartiles with data points covering range), displaying the comparison of the conversion factors for the individual data sets over the course of the entire study. The data sets consist of 55 20-cm cylinder scans, four of which were with TEM, fourteen 1-L scans, two 2-L scans, and one 4-L scansBack to article page