Figure 1From: Impact of collimator leaf width and treatment technique on stereotactic radiosurgery and radiotherapy plans for intra- and extracranial lesionsExamples of lesions and adjacent critical structures/organs for the brain (a), the liver(b), and the spine (c) groups. The 3D rendering of the geometrical relationships is shown in (d) for the brain case (left), liver case (middle) and spine case (right).Back to article page