Table 1 Characteristics and lesion profile of patients undergoing ultrasound-guided lung biopsy using 16-gauge and 18-gauge biopsy needle
Characteristics | 16-gauge (n = 249) | 18-gauge (n = 920) | P value |
|---|---|---|---|
Age (years) | 57.8 ± 14.5 | 60.0 ± 12.8 | 0.028 |
Gender | |||
Male/female | 156/93 | 611/309 | 0.268 |
Patient position (%) | |||
Supine | 93 (37.3%) | 329 (35.8%) | 0.719 |
Prone | 112 (45.0%) | 440 (47.8%) | |
Lateral | 44 (17.7%) | 151 (16.4%) | |
Emphysema on CT | 19 (7.6%) | 112 (12.2%) | 0.044 |
Location of pulmonary lesion (%) | |||
Left upper lobe | 42 (16.9%) | 193 (21.0%) | 0.590 |
Left lower lobe | 64 (25.7%) | 207 (22.5%) | |
Right upper lobe | 64 (25.7%) | 245 (26.6%) | |
Right middle lobe | 21 (8.4%) | 75 (8.2%) | |
Right lower lobe | 58 (23.3%) | 200 (21.7%) | |
Diameter of lesion (cm) | 4.8 ± 2.5 | 5.2 ± 2.6 | 0.024 |
< 5 | 119 (47.8%) | 439 (47.7%) | 0.984 |
≥ 5 | 130 (52.2%) | 481 (52.3%) | |
Proportion of necrosis in the lesion | |||
< 50% | 215 (86.3%) | 762 (82.8%) | 0.184 |
≥ 50% | 34 (13.7%) | 158 (17.2%) | |
Number of pleural surfaces crossed | |||
1 | 37 (14.9%) | 56 (6.1%) | < 0.001 |
2 | 147 (59.0%) | 647 (70.3%) | |
> 2 | 65 (26.1%) | 217 (23.6%) | |
Success rate (%) | 240 (96.4%) | 836 (90.9%) | 0.004 |
Malignant | 135 (54.2%) | 543 (59.1%) | 0.001 |
Benign | 105 (42.2%) | 293 (31.8%) | |
Non-diagnostic | 9 (3.6%) | 84 (9.1%) | |
Complication rate (%) | 24 (9.6%) | 88 (9.6%) | 0.972 |
Pneumothorax | 4 (1.6%) | 25 (2.7%) | 0.317 |
Hemorrhage | 15 (6.0%) | 62 (6.8%) | 0.687 |
Vasovagal reaction | 5 (2.0%) | 1 (0.1%) | 0.002 |