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Table 2 Coverage of Helical Tomotherapy and Gamma Knife Stereotactic Radiosurgery Plans in Patients with Single Brain Metastasis.

From: Dosimetric comparison of Helical Tomotherapy and Gamma Knife Stereotactic Radiosurgery for single brain metastasis

  TOMOTHERAPY GAMMA KNIFE
Patient #1 0.983 1.000
Patient #2 0.944 0.990
Patient #3 0.978 0.970
Patient #4 0.962 0.962
Patient #5 0.997 0.997
  1. Coverage = (PTV volume within prescription iso-dose line)/(PTV volume)