Course book Advanced Treatment Planning 2018
Physical optimisations Limitations
▪ Quadratic dose difference may not reflect clinical objective
▪ Properly ranking plans based on dose-volume objectives may fail
Objective: 50% of volume is to receive <50 G y
Score: Plan 1: 10 /100 ( 100 – 50 ) 2 = 250 Plan 2: 50 /100 ( 60 – 50 ) 2 = 50
Result: Plan 1 is rejected!
Courtesy of Aswin Hoffmann
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