Comparison between method COM and TV. Symbols in the figure show the results for the COM method. The values around the symbols show the results of method TV (intersection volume in percentage). In/M Local refers to local recurrences that were classified either as in-field or marginal depending on the classification method. Closed symbols show cases treated with definitive RT while for cases with open symbols the treatment was post-operative. Recurrences were ordered by recurrence type, by definitive or post-operative, by prescribed dose and finally by recurrence volume.