From: Tumor volume is more reliable to predict nodal metastasis in non-small cell lung cancer of 3.0 cm or less in the greatest tumor diameter
Lymph node metastases
Total (95% CI)
Negative (95% CI)
Positive (95% CI)
P value
TV mean (cm3)
3.92 (3.60–4.23)
3.57 (3.21–3.94)
4.78 (4.15–5.40)
0.001
GTD mean (cm)
2.22 (2.16–2.29)
2.17 (2.09–2.49)
2.35 (2.24–2.47)
0.054