| | |
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*
|
- 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)
