Fig. 4

Generation of test-data: The plot in a) shows the motion patterns of tracked liver features derived from EPI image sequences of three different volunteers. For our studies, we use the black-solid motion pattern to generate monitoring images. The images in b) show data for different motion states comparing the real EPI images and the generated data for the same respiratory state. The dashed yellow lines are given to facilitate comparison. The green solid contours show the manually delineated sliding boundary between inner organs and ribcage. The last column shows images highlighting the differences between the EPI and the generated image, normalized with respect to the range of the EPI image