Axial view of a stereotactic radiosurgery plan via TrueBeam™-IMRS (Varian Medical Systems, Palo Alto, CA) delivering 36 Gy given in 3 fractions to an 88 year old female. PTV is shown in red. Blue colorwash outline shows 80% prescribed isodose line. Critical structures are outlined as follows: kidneys (yellow), liver (orange), bowels (brown), and spinal cord (blue).