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Table 5 Comparisons of EBUS-GS and other characteristics according to the severity of pulmonary emphysema

From: Clinical outcomes of radial probe endobronchial ultrasound using a guide sheath for diagnosis of peripheral lung lesions in patients with pulmonary emphysema

Variables

Mild emphysema (n = 70)

Moderate-to-severe emphysema (n = 59)

P-value

Mean diameter of lesion, mm

27 (22–39)

28 (19–39)

0.709

Distance from pleura to lung lesion, mm

3 (0–22)

0 (0–27)

0.927

Number of brushing cytology tests

3 (3–3)

3 (2–3)

0.371

Number of biopsies

6 (6–6)

6 (6–7)

0.379

Lesion location

 Right upper lobe

25 (36)

11 (19)

0.072

 Right middle lobe

4 (6)

8 (14)

 

 Right lower lobe

16 (23)

15 (25)

 

 Left upper division

12 (17)

10 (17)

 

 Left lingular division

1 (1)

6 (10)

 

 Left lower lobe

12 (17)

9 (15)

 

Bronchus sign

 Positive

62 (89)

40 (68)

0.004

 Negative

8 (11)

19 (32)

 

Character of lesion on CT

 Solid

62 (89)

54 (92)

0.484

 Mixed

0 (0)

1 (2)

 

 Ground-glass opacity

1 (1)

0 (0)

 

 Cavitary

7 (10)

4 (7)

 

EBUS finding

 Within lesion

63 (90)

43 (73)

0.011

 Adjacent to or outside lesion

7 (10)

16 (27)

 
  1. FEV1 forced expiratory volume in 1 s, FVC forced vital capacity, EBUS endobronchial ultrasound, CT computed tomography