| | |
3D-CRT
|
VMAT
|
|---|
| |
CT datasets
|
Δ [%]
|
P value
|
Δ [%]
|
P value
|
|---|
|
ΔDmean
|
PCT vs AIP
|
0.6 ± 6.6
|
0.39
|
1.2 ± 6.8
|
0.29
|
| |
MIP vs AIP
|
−5.6 ± 14.5
|
0.21
|
−5.6 ± 13.7
|
0.20
|
| |
MidV vs AIP
|
0.4 ± 2.8
|
0.80
|
0.4 ± 2.7
|
0.80
|
| |
MIP vs PCT
|
−6.0 ± 14.9
|
0.13
|
−6.5 ± 14.1
|
0.06
|
| |
MidV vs PCT
|
0.2 ± 7.7
|
0.39
|
−0.4 ± 7.7
|
0.24
|
| |
MIP vs MidV
|
−5.9 ± 14.7
|
0.28
|
−5.8 ± 13.9
|
0.14
|
|
ΔV30
|
PCT vs AIP
|
7.2 ± 12.7
|
0.07
|
8.9 ± 13.5
|
0.07
|
| |
MIP vs AIP
|
−23.6 ± 17.0
|
0.01*
|
−25.0 ± 16.5
|
0.01*
|
| |
MidV vs AIP
|
−0.6 ± 2.3
|
0.39
|
−0.6 ± 2.5
|
0.33
|
| |
MIP vs PCT
|
−28.0 ± 18.5
|
0.01*
|
−30.4 ± 17.7
|
0.01*
|
| |
MidV vs PCT
|
−6.1 ± 11.2
|
0.07
|
−7.4 ± 11.6
|
0.06
|
| |
MIP vs MidV
|
−23.1 ± 16.9
|
0.01*
|
−24.5 ± 16.5
|
0.01*
|
|
ΔV20
|
PCT vs AIP
|
3.5 ± 10.2
|
0.07
|
4.9 ± 10.6
|
0.07
|
| |
MIP vs AIP
|
−22.2 ± 15.4
|
0.01*
|
−22.4 ± 14.1
|
0.01*
|
| |
MidV vs AIP
|
−0.9 ± 3.4
|
0.17
|
−0.9 ± 3.4
|
0.17
|
| |
MIP vs PCT
|
−24.4 ± 16.1
|
0.01*
|
−25.5 ± 15.2
|
0.01*
|
| |
MidV vs PCT
|
−3.3 ± 10.7
|
0.07
|
−4.6 ± 10.6
|
0.07
|
| |
MIP vs MidV
|
−21.4 ± 15.4
|
0.01*
|
−21.6 ± 14.1
|
0.01*
|
|
ΔV10
|
PCT vs AIP
|
1.6 ± 9.1
|
0.24
|
1.9 ± 9.8
|
0.29
|
| |
MIP vs AIP
|
−20.8 ± 11.7
|
0.01*
|
−21.8 ± 12.7
|
0.01*
|
| |
MidV vs AIP
|
−1.2 ± 4.3
|
0.17
|
−1.2 ± 4.5
|
0.20
|
| |
MIP vs PCT
|
−21.8 ± 11.1
|
0.01*
|
−23.0 ± 11.9
|
0.01*
|
| |
MidV vs PCT
|
−2.0 ± 10.2
|
0.11
|
−2.2 ± 10.9
|
0.14
|
| |
MIP vs MidV
|
−19.7 ± 12.1
|
0.01*
|
−20.7 ± 12.8
|
0.01*
|
- Relative differences for ipsilateral lung dose (mean ± standard deviation) 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)
