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Fig. 3 | Radiation Oncology

Fig. 3

From: 4DMRI-based investigation on the interplay effect for pencil beam scanning proton therapy of pancreatic cancer patients

Fig. 3

a 3D SFUD plans and b exemplary 4D dose distributions for single fraction PBS proton therapy (4Dx1) of patients P1-P9 with the respective delineations of CTV/PTV in black/pink. Doses below 90% of the prescribed dose are not displayed in this dose representation. The blue arrows indicate the beam angles. The interplay effect in terms of c homogeneity index d5/d95 and d v95 for all patients are displayed for n calculated possible 4D dose scenarios of single fraction treatments with variable initial breathing phases. The green crosses indicate the values of the static 3D case

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