Fig. 2From: The feasibility of a dose painting procedure to treat prostate cancer based on mpMR images and hierarchical clusteringa Dendrogram (the “distance” indicates the closeness of either individual data points or clusters and the “sample index” is the number of data); b clustering classes based on the opinion of the radiologist and oncologist in which PTV3 correlates with ADC < 0.8 mm2/s and Ktrans > 3; PTV2 with 0.65 < ADC ≤ 1 mm2/s and 1 < Ktrans ≤ 3; and finally PTV1 with 1 < ADC mm2/s and Ktrans < 1Back to article page