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Table 4 Mean values of the evaluated indices for all plans in both systems

From: Robotic radiosurgery versus micro-multileaf collimator: a dosimetric comparison for large or critically located arteriovenous malformations

System HI ΔHI (%) CI ΔCI (%) CIL ΔCIL(%) GSI ΔGSI (%) CN ΔCN (%) Q ΔQ (%)
CK 1.20 8.1 1.48 −20.43 0.70 16.60 26.38 −25.30 0.68 17.24 0.93 3.33
L-mMLC 1.11 1.86 0.60 35.32 0.58 0.90
P value <0.05   <0.05   <0.05   0.26   <0.05   0.28  
  1. CK-CyberKnife, L-mMLC – linac with micro-multileaf collimator, HI – homogeneity index, CI – conformity index, CIL – conformity index proposed by Lomax, GSI – gradient score index, CN – conformation number, Q – quality of coverage, Δ – improvement ratio of a given measure (%).
  2. Significant differences are marked with bold font.