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Table 2 Frequency of 2nd adaptations on a patient-level for the minimum feasible margins

From: Effect of intrafraction adaptation on PTV margins for MRI guided online adaptive radiotherapy for rectal cancer

Fractions needing a 2nd adaptation Number of patients
CTVmeso GTVprim
0 9 15
1 6 11
2 8 1
3 2 2
4 5 -