Fig. 2.

Mean absolute body outline difference (solid blue line) and mean + 1SD (dash-dotted line) between CT and sCT images. Mean body outline geometric distortion (dashed red line), mean + 1SD (red dashed-dotted) and max distortion (red dashed line) of the body outline due to geometric distortions of MR images as a function of (cranio-caudal) distance from the isocentre of MRI device (SD: standard deviation, CT: computed tomography, sCT: synthetic computed tomography, MRI: magnetic resonance imaging). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)