Organ/Structure
|
Parameters
|
Plans
|
Value (Mean±SD)
|
P-value
|
---|
Ipsilateral lung
|
V5
|
All
|
65%±8%
| |
| |
Integrated
|
67%±9%
|
0.005
|
| |
Segmented
|
61%±7%
| |
|
V20
|
All
|
28%±2%
| |
| |
Integrated
|
28%±3%
|
0.980
|
| |
Segmented
|
28%±2%
| |
|
Dmean (Gy)
|
All
|
15.06±1.66
| |
| |
Integrated
|
15.11±1.54
|
0.658
|
| |
Segmented
|
14.93±1.99
| |
Contralateral lung
|
V5
|
All
|
12%±11%
| |
| |
Integrated
|
14%±12%
|
0.157
|
| |
Segmented
|
9%±8%
| |
|
Dmean (Gy)
|
All
|
2.26±1.32
| |
| |
Integrated
|
2.58±1.43
|
0.019
|
| |
Segmented
|
1.66±0.83
| |
Heart
|
V5
|
Left-sided lesions
|
56%±15%
| |
| |
Integrated
|
60%±13%
|
0.001
|
| |
Segmented
|
45%±13%
| |
|
V10
|
Left-sided lesions
|
30%±9%
| |
| |
Integrated
|
31%±10%
|
0.076
|
| |
Segmented
|
26%±7%
| |
|
V20
|
Left-sided lesions
|
13%±6%
| |
| |
Integrated
|
14%±7%
|
0.77
|
| |
Segmented
|
13%±4%
| |
|
V30
|
Left-sided lesions
|
7%±3%
| |
| |
Integrated
|
8%±4%
|
0.21
|
| |
Segmented
|
6%±3%
| |
|
Dmean (Gy)
|
Left-sided lesions
|
8.69±1.47
| |
| |
Integrated
|
8.76±1.61
|
0.65
|
| |
Segmented
|
8.54±1.14
| |
Spinal cord
|
Dmax (Gy)
|
All
|
36.10±5.87
| |
| |
Integrated
|
37.24±4.55
|
0.009
|
| |
Segmented
|
33.29±7.97
| |
Ipsilateral humeral head
|
Dmean (Gy)
|
All
|
23.98±9.25
| |
| |
Integrated
|
28.22±5.60
|
<0.001
|
| |
Segmented
|
12.31±6.99
| |
Esophagus
|
Dnear-max (Gy)
|
All
|
41.56±7.79
| |
| |
Integrated
|
41.84±9.15
|
0.85
|
| |
Segmented
|
41.29±6.47
| |
|
Dmean (Gy)
|
All
|
11.14±3.11
| |
| |
Integrated
|
11.22±2.78
|
0.745
|
| |
Segmented
|
10.83±4.27
| |
Contralateral breast
|
Dmean (Gy)
|
All
|
0.98±0.46
| |
| |
Integrated
|
1.01±0.48
|
0.418
|
| |
Segmented
|
0.90±0.43
| |
|
V5
|
All
|
2%±1%
| |
| |
Integrated
|
2%±2%
|
0.299
|
| |
Segmented
|
1%±1%
| |
Healthy tissue
|
EI
|
All
|
0.30±0.04
| |
| |
Integrated
|
0.31±0.03
|
0.094
|
| |
Segmented
|
0.28±0.05
| |
- Abbreviations: Vx: percent volume of critical structures receiving a dose of x Gy; EI: external volume index; other abbreviations as in Table 2.