Surgical Outcomes of Patients Undergoing Resection by Preoperative PET Use
| Outcome | No preoperative PET | Preoperative PET | P |
| Number of subjects | 427 (43.8%) | 549 (56.3%) | |
| Type of surgery | |||
| Pneumonectomy | 7.0 | 9.1 | 0.054 |
| Lobectomy | 68.6 | 72.5 | |
| Wedge/other | 24.4 | 18.4 | |
| Received mediastinoscopy | 42.6 | 63.8 | <0.001 |
| Pathologic stage | |||
| IA | 35.1 | 32.4 | 0.062 |
| IB | 21.3 | 25.5 | |
| IIA | 4.7 | 4.0 | |
| IIB | 12.2 | 13.5 | |
| IIIA | 5.6 | 8.9 | |
| IIIB | 4.7 | 4.7 | |
| IV* | 3.3 | 1.3 | |
| Nodal involvement | |||
| N0 | 78.0 | 75.2 | 0.434 |
| N1 | 14.8 | 15.3 | |
| N2/N3* | 7.3 | 9.5 | |
| Evidence of metastasis* | 7.3 | 3.8 | 0.018 |
| Died within 12 mo* | 21.8 | 19.7 | 0.419 |
| Received unnecessary surgery* | 30.9 | 29.9 | 0.726 |
↵* Definition of unnecessary surgery is based on trial conducted by Fischer et al. (2) and includes any evidence of N2/N3 regional lymph nodes or any evidence of metastasis/stage IV disease or death within 12 mo.
Data are percentages.