Table 2.

SBRT dosimetrics.

Mean dose to macroscopic tumor volume	17.7Gy (range 16.4–18.6Gy)
Mean coverage macroscopic tumor volume*	82% (range 67–93.4%)
Mean coverage of vertebral body†	99% (range 97–100%)
D1cc of the spinal cord§	7.8Gy (range 0.2–9.6Gy)
D1cc of the cauda§	12.5Gy (range 11.9–13Gy)
Mean dose to the surgical area	2.9Gy (range 1–5.3Gy)
Mean volume of surgical area (cc)	455 (range 243–888cc)

^*% of GTV that received 16.2Gy or higher,

^†% of CTV that received 7.2Gy or higher,

^§maximum dose in Gy to 1cc of the volume.