Fig. 2From: Target volume delineation of anal cancer based on magnetic resonance imaging or positron emission tomographyDice similarity coefficient histograms for GTV (top) and GTVT (bottom). The inter observer bars consist of 19 patients, each with three delineation pairs between doctors (AB, BC, CA). The inter modality bars are based on the PET delineations for each of the 19 patients paired with respective MR delineations of the same doctorBack to article page