Skip to main content

Table 3 Time-averaged mean GTV and CTV variations from the planning CT within different groups

From: Anatomic change over the course of treatment for non–small cell lung cancer patients and its impact on intensity-modulated radiation therapy and passive-scattering proton therapy deliveries

 GroupNon-adaptive (mm)Adaptive (mm)p value
GTVEntire cohort6.07 ± 2.639.41 ± 2.170.001
PSPT5.20 ± 1.669.76 ± 2.01< 0.001
IMRT6.94 ± 3.219.06 ± 2.410.159
CTVEntire cohort5.90 ± 2.338.93 ± 2.190.001
PSPT5.19 ± 1.599.24 ± 1.85< 0.001
IMRT6.61 ± 2.828.63 ± 2.570.156
  1. GTV internal gross tumor volume, CTV clinical target volume, IMRT intensity-modulated (photon) radiation therapy, PSPT passive-scattering proton therapy