Fig. 7From: 4DMRI-based investigation on the interplay effect for pencil beam scanning proton therapy of pancreatic cancer patientsInter-patient correlations between CTV motion amplitudes, length of breathing cycles and the interplay effect assessed as d5/d95 (a-c). For each patient, the mean values of the respective quantities are displayed. The correlation between the interplay effect and the CTV volume is illustrated in (d)Back to article page