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Table 4 Differences for liver dose in liver SBRT

From: Dosimetric impact of different CT datasets for stereotactic treatment planning using 3D conformal radiotherapy or volumetric modulated arc therapy

   3D-CRT VMAT
  CT datasets Δ [%] P value Δ [%] P value
ΔDmean PCT vs AIP 0.9 ± 3.8 0.88 0.9 ± 3.9 0.76
  MIP vs AIP −5.8 ± 4.7 0.04* −5.3 ± 4.6 0.05
  MidV vs AIP −2.3 ± 3.4 0.07 −2.1 ± 3.3 0.08
  MIP vs PCT −6.6 ± 3.0 0.01* −6.2 ± 2.9 0.01*
  MidV vs PCT −3.1 ± 3.2 0.03* −3.0 ± 3.3 0.04*
  MIP vs MidV −3.6 ± 2.7 0.01* −3.2 ± 2.7 0.01*
ΔV30 PCT vs AIP 1.7 ± 4.9 0.88 1.5 ± 4.7 0.72
  MIP vs AIP 3.6 ± 8.5 0.88 3.9 ± 8.4 0.96
  MidV vs AIP 2.5 ± 5.1 0.20 2.3 ± 5.2 0.58
  MIP vs PCT 1.8 ± 5.6 0.80 2.3 ± 5.5 0.58
  MidV vs PCT 0.9 ± 3.5 0.45 0.8 ± 3.3 0.58
  MIP vs MidV 0.9 ± 3.7 0.72 1.4 ± 3.4 0.80
ΔV20 PCT vs AIP 1.6 ± 5.5 0.80 1.0 ± 5.2 0.45
  MIP vs AIP 4.1 ± 7.7 0.14 4.4 ± 7.5 0.09
  MidV vs AIP 2.4 ± 4.1 0.17 2.4 ± 4.6 0.24
  MIP vs PCT 2.4 ± 4.4 0.17 3.4 ± 5.9 0.05
  MidV vs PCT 0.8 ± 3.3 0.33 1.5 ± 4.2 0.39
  MIP vs MidV 1.6 ± 3.7 0.51 1.9 ± 3.2 0.33
ΔV10 PCT vs AIP 1.3 ± 4.7 0.96 1.1 ± 4.9 0.65
  MIP vs AIP 5.2 ± 5.3 0.01* 5.4 ± 5.6 0.01*
  MidV vs AIP 2.4 ± 3.1 0.02* 2.5 ± 3.3 0.04*
  MIP vs PCT 4.0 ± 4.5 0.03* 4.3 ± 4.3 0.03*
  MidV vs PCT 1.3 ± 4.2 0.45 1.5 ± 4.2 0.33
  MIP vs MidV 2.7 ± 2.8 0.03* 2.8 ± 3.1 0.04*
  1. Relative differences for liver dose over all patients (mean ± standard deviation) in liver SBRT between the different CT datasets for 3D-CRT and VMAT plans. PCT planning CT, AIP average intensity projection CT, MIP maximum intensity projection CT, MidV mid-ventilation CT. *assigns statistical significant values (p < 0.05)