1. Baseline of patient characteristics and lesion features (N=109).
Characteristics | n (%) |
CT, computed tomography; EBUS, endobronchial ultrasonography; Within type, the probe was placed in a bronchus that ran inside the lesion; Adjacent type, the probe was placed in a bronchus that ran alongside the lesion; Without type, the probe was placed in a bronchus that far from the lesion or the probe could not access the lesion for exploration. | |
Gender, male | 60 (55.0) |
Age ( ) (year) | 58.3±10.1 |
Lesion location | |
Left upper lobe | 30 (27.5) |
Left lower lobe | 8 (7.3) |
Right upper lobe | 36 (33.0) |
Right middle lobe | 11 (10.1) |
Right lower lobe | 24 (22.0) |
Lesion size on CT | |
Diameter [median (range)] (mm) | 24.0 (7.0−68.0) |
Diameter ≤30 mm | 85 (78.0) |
Diameter ≤20 mm | 44 (40.4) |
Bronchus sign on CT | |
Presence | 82 (75.2) |
Absence | 27 (24.8) |
Lung field on CT | |
Distance to chest wall [median (range)] (mm) | 26.1 (11.4−59.0) |
Lateral band | 49 (45.0) |
Intermediate band | 60 (55.0) |
Probe position on EBUS | |
Within type | 63 (57.8) |
Adjacent type | 34 (31.2) |
Without type | 12 (11.0) |
Time to locate the lesion on EBUS [median (range)] (min) | 5.0 (2.0−27.0) |