Figure 4
From: A single-field integrated boost treatment planning technique for spot scanning proton therapy

Representative axial, coronal and sagittal (left, middle, and right panels, respectively) CT images for a patient 4. (A) SFIB, (B) SFUD with sequential boost and (C) IMPT treatment plans. Targets volumes are represented as color washes. (D) Dose volume histogram (solid lines, SFIB; dashed lines, SFUD and dotted line, IMPT).