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Table 5 Summary of the volumetric percentage underestimation and overestimation for each IGTV based on IGTVMIP, IGTV2Phases, and IGTVMIP-Modified relative to the reference IGTVAllPhases.

From: Determination of patient-specific internal gross tumor volumes for lung cancer using four-dimensional computed tomography

Underestimation (%) IGTVMIP IGTV2Phases IGTVMIP-Modified
Stage I patients     
  Avg. ± SD 17.33 ± 6.56 19.32 ± 5.93 5.36 ± 1.71
  Range 6.32–30.86 6.03–31.76 2.30–8.53
Stage III patients     
  Avg. ± SD 12.11 ± 6.23 8.95 ± 5.15 4.21 ± 1.66
  Range 4.04–23.85 4.01–22.25 1.20–6.66
Overestimation (%) IGTVMIP IGTV2Phases IGTVMIP-Modified
Stage I patients     
  Avg. ± SD 3.23 ± 2.35 0 4.80 ± 2.39
  Range 0.34–8.64 0 1.30–10.07
Stage III patients     
  Avg. ± SD 2.36 ± 1.79 0 3.21 ± 2.22
  Range 1.06–6.92 0 1.43–8.09
  1. Average ± standard deviation and range are reported for stage I and stage III tumors.