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Table 2 Systematic and random setup uncertainties for the 3 IG schedules

From: Setup uncertainties and the optimal imaging schedule in the prone position whole breast radiotherapy

IG frequency Vrt (mm) Lng (mm)
Σ σ Σ σ
NIG 2.1 3.7 2.8 3.3
WIG 1.8 3.4 2.2 3.2
3 + WIG 1.7 3.4 1.5 2.9
  1. Abbreviations: Σ systematic error, σ random error, IG image guidance, Vrt Vertical, Lng Longitudinal