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Table 1 Range and average magnitude of shifts (cm) in each direction for the right and left shoulder and an average net displacment determined by the 3D-vector of each shoulder.

From: Assessment of shoulder position variation and its impact on IMRT and VMAT doses for head and neck cancer

  RL AP SI Net
Range 0-0.85 0-1.83 0-1.96 0.10-2.01
Average (Right shoulder) 0.22 0.36 0.35 0.55
Average (Left shoulder) 0.26 0.48 0.27 0.60
Average net     0.58
  1. AP = anterior-posterior; RL = right-left; SI = superior-inferior