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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)