Figure 4
From: Dosimetric analysis of six whole-breast irradiation techniques in supine and prone positions
Differences in the PTV volume and separation distance between the supine and prone positions. Separation distance was defined as the shortest three-dimensional distance from the 3D contours of PTV and OARs. Red circle and blue triangle marks represent the left- and right-sided breast cancer patients, respectively. Light orange and light green shaded areas correspond to PTV volume and separation distance of OARs from PTV, respectively.
