Table 2.
Measured parameters for patient data
| Mean intensity (PROPCPS) |
Max intensity (PROPCPS) |
Net target motion (mm) |
Target diameter (cm) |
T1 ITV (cm3) |
T2 ITV (cm3) |
A1 ITV (cm3) |
A2 ITV (cm3) |
|
|---|---|---|---|---|---|---|---|---|
| Tumor 1 | 441 | 1234 | 22.4 | 4.29 | 39.63 | 38.97 | 42.46 | 41.15 |
| Tumor 2 | 1518 | 4376 | 20.4 | 3.61 | 16.64 | 17.78 | 19.23 | 21.59 |
| Tumor 3 | 484 | 1586 | 41.7 | 2.75 | 16.64 | 15.75 | 18.74 | 20.23 |
| Tumor 4 | 534 | 1270 | 22.5 | 2.79 | 10.44 | 9.29 | 13.03 | 12.13 |
| Tumor 5 | 1443 | 3770 | 6.89 | 4.80 | 26.66 | 27.26 | 31.96 | 30.26 |
| Tumor 6 | 1188 | 2744 | 12.9 | 3.45 | 18.58 | 18.57 | 18.59 | 18.28 |
| Tumor 7 | 1417 | 3674 | 20.1 | 2.74 | 9.95 | 9.57 | 10.7 | 10.25 |
| Tumor 8 | 1842 | 4264 | 14.2 | 3.14 | 8.06 | 8.44 | 8.94 | 9.25 |
| Tumor 9 | 713 | 1883 | 29.6 | 2.64 | 15.44 | 15.69 | 18.43 | 19.46 |
| Tumor 10 | 4680 | 12,531 | 3.81 | 4.66 | 23.58 | 22.49 | 28.22 | 27.86 |
| Tumor 11 | 5937 | 14,170 | 1.65 | 3.34 | 8.34 | 8.29 | 10.25 | 8.44 |
| Tumor 12 | 1125 | 2650 | 12.0 | 2.51 | 8.19 | 7.86 | 8.88 | 9.31 |
| LN 1 | 381 | 914 | 12.6 | 3.37 | 15.8 | 19.14 | 20.97 | 21.43 |
| LN 2 | 381 | 681 | 5.01 | 2.72 | 4.42 | 4.7 | 4.77 | 5.29 |
| LN 3 | 725 | 1792 | 19.1 | 2.25 | 5.68 | 5.32 | 6.1 | 6.69 |
| LN 4 | 524 | 1481 | 18.3 | 1.96 | 5.12 | 4.56 | 4.65 | 4.9 |
| LN 5 | 879 | 1561 | 7.09 | 2.43 | 5.1 | 4.95 | 6.49 | 5.34 |
| LN 6 | 678 | 1275 | 6.57 | 2.58 | 5.63 | 6.91 | 7.24 | 7.56 |
| LN 7 | 815 | 1440 | 5.31 | 1.69 | 2.17 | 2.98 | 2.61 | 3.05 |
| LN 8 | 946 | 2287 | 14.1 | 6.38 | 82.67 | 81.31 | 100.01 | 96.44 |
| LN 9 | 820 | 2044 | 19.7 | 2.43 | 7.54 | 6.68 | 8.34 | 9.21 |
| Tumor Vdiff | - | - | - | - | 0% | −1.1% | +13.5% | +12.9% |
| LN Vdiff | - | - | - | - | 0% | +1.8% | 20.2% | + 9.2% |
Abbreviations: ITV = internal target volumes; PROPCPS = proportional to counts per second.
Target intensity, diameter, motion, and ITVs (cm3) of tumors and lymph nodes. Intensity values were averaged across all gating methods; units are PROPCPS. Net target motion was calculated by the difference of target centroids between end-inhale and end-exhale phases using method A1. End-exhale images with method A1 were used to estimate the longest axis of the target as the target diameter. Vdiff represents the average algorithm volume percentage difference relative to T1.