Fig. 2From: Registration uncertainties between 3D cone beam computed tomography and different reference CT datasets in lung stereotactic body radiation therapyBox-whisker-plots of the 3D shift differences. Box-whisker-plots show the 3D shift differences over all patients for the automatic and manual registration between the CT datasets (a) and between the automatic and manual registration for the same CT dataset (b). The boxplots represent the 25 % quartile, median and 75 % quartile. Whiskers mark the minimal and maximal differences. Asterisks represent the 3D shift threshold including 95 % of the patients. PCT = slow planning CT; AIP = average intensity projection; MIP = maximum intensity projection; MidV = mid-ventilationBack to article page