Figure 1From: The impact of dose calculation algorithms on partial and whole breast radiation treatment plansTransaxial (upper left), coronal (lower left), sagittal (lower right), and three dimensional rendering of a partial breast plan computed with the pencil beam algorithm. The dose escalation volume (DEV), shown in purple, is a 5 millimeter expansion of the clinical target volume, shown in pink, but excludes the chest wall.Back to article page