Table 2.
Predicted remaining postoperative pulmonary function: FEV1 (pFEV1) and DLCO (pDLCO).
| Scheduled Resection | n Patients | Segment Counting Method | Planar Perfusion Scintigraphy (Mende Method) | Perfusion-SPECT-Based Quantification | |
|---|---|---|---|---|---|
| pFEV1 | Resection of the upper lobe right | 21 | 1.44 L (±0.4) 54% (±14%) |
1.35 L (±0.4) 50% (±15%) |
1.42 L (±0.4) 52% (±14%) |
| Resection of the middle lobe | 3 | 1.36 L (±0.7) 44% (18%) |
1.40 L (±0.7) 45% (±19%) |
1.35 L (±0.6) 44% (±16%) |
|
| Resection of the lower lobe right | 8 | 1.32 L (±0.5) 49% (±11%) |
1.41 L (±0.4) 53% (±11%) |
1.47 L (±0.5) 55% (±14%) |
|
| Resection of the upper lobe left | 14 | 1.21 L (±0.3) 46% (±8%) |
1.29 L (±0.3) 50% (±10%) |
1.34 L (±0.4) 52% (±12%) |
|
| Resection of the lower lobe left | 11 | 1.34 L (±0.4) 51% (±13%) |
1.28 L (±0.4) 49% (±15%) |
1.47 L (±0.5) 56% (±19%) |
|
| Resection of two upper lobes right | 2 | 1.32 L (±0.2) 48% (±6%) |
1.24 L (±0.3) 45% (±0.8%) |
1.30 L (±0.1) 48% (±7%) |
|
| Pneumonectomy right | 14 | 0.84 L (±0.34) 31% (±11%) |
1.03 L (±0.5) 38% (±15%) |
1.08 L (±0.6) 39% (±17%) |
|
| Pneumonectomy left | 9 | 0.94 L (±0.4) 33% (±9%) |
1.31 L (±0.5) 46% (±12%) |
1.34 L (±0.5) 48% (±13%) |
|
| Remaining lung function | 82 | 1.22 L (±0.4) 45% (±14%) |
1.28 L (±0.4) 47% (±13%) |
1.34 L (±0.4) 50% (±15%) |
|
| pDLCO | Resection of the upper lobe right | 21 | 42% (±13%) | 40% (±13%) | 42% (±15%) |
| Resection of the middle lobe | 3 | 45% (±11%) | 46% (±11%) | 45% (±14%) | |
| Resection of the lower lobe right | 8 | 39% (±10%) | 42% (±10%) | 43% (±11%) | |
| Resection of the upper lobe left | 14 | 40% (±15%) | 43% (±16%) | 44% (±17%) | |
| Resection of the lower lobe left | 11 | 43% (±14%) | 40% (±14%) | 46% (±17%) | |
| Resection of two upper lobes right | 2 | 33% (±0.3%) | 31% (±3%) | 33% (±0.2%) | |
| Pneumonectomy right | 14 | 23% (±7%) | 28% (±13%) | 29% (±14%) | |
| Pneumonectomy left | 9 | 29% (±10%) | 41% (±16%) | 42% (±16%) | |
| Remaining lung function | 82 | 36% (±13%) | 39% (±14%) | 41% (±15%) |
pFEV1 and pDLCO values are expressed in liters and percentage (%) of the expected age-, sex-, and body height-dependent values. The differences in the calculated predicted values are given in % of standard deviation (SD) for each method (brackets).