“…A limited number of studies investigate the clinical value of DECT-based delineations. A PubMed database search with the criteria “DECT 1 ” and “RT 1 “ and “delineation” resulted in only 12 publications, which mainly focused on optimal DECT recons in terms of maximum contrast or signal-to-noise ratios (CNR/SNR) or MAR considerations [12] , [18] , [19] , [20] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] . Tumors and OARs in the brain, HN, lung, liver and pancreas were investigated, and in general VMI < 60 keV had favorable CNR as compared to 120 kV SECT.…”