Table 4 Comparing TN and TP findings among different variables in 18F-FDG PET/CT
From: Impact of 18F-FDG PET/CT, CT and EBUS/TBNA on preoperative mediastinal nodal staging of NSCLC
Variable | Total | TN N (%) | TP N (%) | P value |
|---|---|---|---|---|
Tumor location | ||||
Central | 15 | 5 (25%) | 10 (50%) | 0.06 |
Peripheral | 25 | 15 (75%) | 10 (50%) | |
Lung disease | ||||
COPD/bronchitis | 4 | 2 (10%) | 2 (10%) | 0.51 |
None | 36 | 18 (90%) | 18 (90%) | |
Diabetes | ||||
No | 28 | 14 (70%) | 14 (70%) | 0.58 |
Yes | 12 | 6 (30%) | 6 (30%) | |
Histopathology | ||||
Adenocarcinoma | 23 | 13 (65%) | 10 (50%) | 0.39 |
Adenosquamous | 1 | 1 (5%) | ||
Squamous cell carcinoma | 15 | 6 (30%) | 9 (45%) | |
Highly undifferentiated | 1 | 1 (5%) | ||
Age | ||||
65 years or less | 24 | 13 (65%) | 11 (55%) | 0.52 |
More than 65 years | 16 | 7 (35%) | 9 (45%) | |
Smoking status | ||||
Current smoker | 21 | 12 (60%) | 9 (45%) | 0.63 |
Non-smoker | 9 | 4 (20%) | 5 (25%) | |
Previous smoker | 10 | 4 (20%) | 6 (30%) | |
Tumor size | ||||
N/A | 18 | 10 | 8 | 0.43 |
Size ≤ 5 cm | 9 | 5 (50%) | 4 (33.3%) | |
Size > 5 cm | 13 | 5 (50%) | 8 (66.7%) | |
SUVmax for lymph node | ||||
N/A | 22 | 14 | 8 | 0.00 |
SUVmax ≤ 3 | 8 | 6 (100%) | 2 (16.7%) | |
SUVmax > 3 | 10 | 10 (83.3%) | ||
SUVmax for primary tumor | ||||
N/A | 3 | 1 | 2 | 0.32 |
SUVmax ≤ 3 | 1 | 1 (5.3%) | ||
SUVmax > 3 | 36 | 18 (94.7%) | 18 (100%) | |