Table 1 Comparison of Variables between the 2 groups
Laser guidance group | Freehand group | P value | |
|---|---|---|---|
Gender (Male/Female) | 19/43 | 39/63 | 0.324 |
Age (years) | 53.0±13.3 | 53.2±11.5 | 0.944 |
BMI (kg/m2) | 23.4±2.8 | 24.0±3.4 | 0.197 |
Nodule location | 0.912 | ||
RUL | 24(38.71%) | 36(35.29%) | |
LUL | 14(22.58%) | 21(20.59%) | |
RML | 4(6.45%) | 6(5.88%) | |
RLL | 13(20.97%) | 22(21.57%) | |
LLL | 7(11.29%) | 17(16.67%) | |
CT nodule size(mm) | 10.31±3.33 | 9.42±3.64 | 0.084 |
Position | 0.099 | ||
lateral | 46(74.19%) | 84(82.35%) | |
prone | 6(9.68%) | 12(11.76%) | |
supine | 10(16.13%) | 6(5.88%) | |
Nodule distance to pleural surface(mm) | 8.16±6.54 | 6.44±5.87 | 0.083 |
Localization duration(min) | 8.91±1.43 | 12.77±1.94 | <0.001** |
CT scan times | 3.67±0.67 | 4.05±0.59 | <0.001** |
Localization depth within the lung parenchyma(mm) | 13.17±3.6 | 15.64±5.62 | 0.002* |
The accuracy of localization(mm) | 6.46±5.86 | 13.76±9.90 | <0.001** |
Mild pulmonary hemorrhage | 0.119 | ||
Yes | 8 | 6 | |
No | 54 | 96 | |
Minor pneumothorax | 0.763 | ||
Yes | 0 | 0 | |
No | 62 | 102 | |
Pleural reaction | |||
Yes | 0 | 0 | |
No | 62 | 102 | |
Hook-wire dislodgement | 0.776 | ||
Yes | 3 | 6 | |
No | 59 | 96 | |
Operation time of wedge resection (min) | 17.83±4.64 | 19.35±6.97 | 0.131 |
Operation time(min) | 80.03±43.68 | 75.20±48.53 | 0.523 |
Surgical type | 0.750 | ||
Wedge resection | 53(85.48%) | 84(82.35%) | |
Segmentectomy | 5(8.06%) | 12(11.76%) | |
Lobectomy | 4(6.45%) | 6(5.88%) | |
Histopathologic results | 0.125 | ||
Benign lesion | 7(11.29%) | 15(14.71%) | |
AIS | 9(14.52%) | 9(8.82%) | |
MIA | 35(56.45%) | 45(44.12%) | |
IA | 11(17.74%) | 33(32.35%) |