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Characteristics
|
Negative LNs (n = 21)
|
Positive LNs (n = 63)
|
P value
|
|---|
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LN location
|
|
N2 nodes
| | | |
|
Superior mediastinal nodes
|
|
#2R
|
2
|
0
| |
|
#3p
|
1
|
1
| |
|
#4R
|
6
|
14
| |
|
#4 L
|
0
|
3
| |
|
Aortic nodes
|
|
#5-#6
|
0
|
10
| |
|
Inferior mediastinal nodes
|
|
#7
|
4
|
15
| |
|
#8-#9
|
0
|
2
| |
|
N1 nodes
|
|
#10
|
2
|
3
| |
|
#11
|
4
|
9
| |
|
#12
|
2
|
6
| |
|
Primary tumor SUVmax
|
10.66 (2.55–17.91)
|
9.04 (1.66–18.67)
|
0.09
|
|
LN SUVmax
|
3.54 (2.52–11.20)
|
5.77 (2.81–15.54)
|
0.001
|
|
LN MTV3.5
|
0.01 (0–13.36)
|
1.44 (0–22.68)
|
0.001
|
|
LN TLG3.5
|
0.05 (0–71.25)
|
6.34 (0–162.78)
|
0.001
|
|
LPR
|
0.37 (0.15–1.76)
|
0.81 (0.26–2.26)
|
< 0.001
|
- FDG-PET/CT fluorine-18-fluoro-2-deoxy-D-glucose positron emission tomography, LN lymph node, SUVmax maximum standardized uptake value, MTV metabolic tumor volume, TLG total lesion glycolysis, LPR lymph node-to-primary tumor ratio of SUVmax
