| | |
3D-CRT
|
VMAT
|
|---|
| |
CT datasets
|
Δ [%]
|
P value
|
Δ [%]
|
P value
|
|---|
|
ΔDmean
|
PCT vs AIP
|
−0.8 ± 0.5
|
0.01*
|
−0.5 ± 0.5
|
0.01*
|
| |
MIP vs AIP
|
1.5 ± 1.4
|
0.01*
|
1.6 ± 1.5
|
0.01*
|
| |
MidV vs AIP
|
0.0 ± 0.3
|
0.96
|
−0.1 ± 0.3
|
0.72
|
| |
MIP vs PCT
|
2.4 ± 0.7
|
0.01*
|
2.2 ± 1.5
|
0.01*
|
| |
MidV vs PCT
|
0.8 ± 0.7
|
0.02*
|
0.5 ± 0.6
|
0.06
|
| |
MIP vs MidV
|
1.6 ± 1.3
|
0.01*
|
1.7 ± 1.5
|
0.01*
|
|
ΔD2
|
PCT vs AIP
|
−0.5 ± 0.7
|
0.04*
|
−0.2 ± 0.8
|
0.29
|
| |
MIP vs AIP
|
1.0 ± 1.5
|
0.07
|
1.6 ± 2.0
|
0.01*
|
| |
MidV vs AIP
|
−0.1 ± 0.4
|
0.39
|
0.0 ± 0.5
|
0.96
|
| |
MIP vs PCT
|
1.5 ± 2.0
|
0.01*
|
1.9 ± 1.9
|
0.01*
|
| |
MidV vs PCT
|
0.4 ± 0.9
|
0.13
|
0.2 ± 1.1
|
0.33
|
| |
MIP vs MidV
|
1.1 ± 1.6
|
0.06
|
1.7 ± 2.0
|
0.01*
|
|
ΔD98
|
PCT vs AIP
|
−1.4 ± 0.4
|
0.01*
|
−1.1 ± 0.7
|
0.01*
|
| |
MIP vs AIP
|
1.0 ± 1.6
|
0.07
|
1.0 ± 1.4
|
0.02*
|
| |
MidV vs AIP
|
0.2 ± 0.4
|
0.09
|
0.0 ± 0.4
|
0.59
|
| |
MIP vs PCT
|
2.4 ± 1.9
|
0.01*
|
2.2 ± 1.7
|
0.01*
|
| |
MidV vs PCT
|
1.7 ± 0.6
|
0.01*
|
1.1 ± 0.7
|
0.01*
|
| |
MIP vs MidV
|
0.7 ± 1.5
|
0.20
|
1.0 ± 1.4
|
0.07
|
|
ΔD95
|
PCT vs AIP
|
−1.3 ± 0.3
|
0.01*
|
−0.9 ± 0.4
|
0.01*
|
| |
MIP vs AIP
|
1.2 ± 1.6
|
0.02*
|
1.0 ± 1.4
|
0.03*
|
| |
MidV vs AIP
|
0.2 ± 0.4
|
0.09
|
0.0 ± 0.4
|
0.68
|
| |
MIP vs PCT
|
2.5 ± 1.8
|
0.01*
|
1.9 ± 1.6
|
0.01*
|
| |
MidV vs PCT
|
1.5 ± 0.5
|
0.01*
|
0.9 ± 0.4
|
0.01*
|
| |
MIP vs MidV
|
1.0 ± 1.4
|
0.04*
|
1.0 ± 1.5
|
0.06
|
- Relative differences over all patients (mean ± standard deviation) of dosimetric values for PTV in lung 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)
