Two patient examples. The first row provides the EE-CT (b) and EI-CT (d) with the EE-AC (a) and EI-AC (e) of a patient. The blue lines indicate the inspiration and expiration position of the diaphragm. The difference between the two is given, where green represents an increase in the EE-AC PET (c). In the intensely coloured regions, the difference exceeds 10%. Most differences are present within the thoracic cavity, and these differences are mostly consistent. Note that the differences are relative, explaining why contrasts in SUV differences do not correlate as well with local CT contrasts as one would expect in absolute differences. On the bottom row, another patient example is provided. The first two images are the P-AC PET (f) and the P-CT (g). Also, the difference between P-AC and EE-AC (h) and P-AC and EI-AC is provided (i) next to the difference between P-AC and 3D-AC (j). In the images, green indicates an increase in the 3D-AC. It is visible that in (j) the differences vary considerably within the thoracic cavity in the last image, while a consistent difference pattern is visible in (h) and (i).