Table 6. Value of each ratio.

Lymph node	Short distance/long distance of lymph node	Long distance of lymph node/aorta diameter	Short distance of lymph node/aorta diameter
Sternal	0.63 (± 0.13)	0.55 (± 0.15)	0.36 (± 0.11)
Cranial mediastinal	0.63 (± 0.10)	0.49 (± 0.14)	0.32 (± 0.09)
Left tracheobronchial	0.58 (± 0.18)	0.63 (± 0.16)	0.37 (± 0.11)
Middle tracheobronchial	0.40 (± 0.18)	0.94 (± 0.33)	0.35 (± 0.10)
Right tracheobronchial	0.54 (± 0.16)	0.60 (± 0.14)	0.33 (± 0.09)
Intercostal	0.78 (± 0.12)	0.29 (± 0.08)	0.24 (± 0.07)

(± standard deviation).