Table 2.
Target volumes, mean dose, dose distribution and tumor control probability.
| GTVPET1 (range) | GTVPET2 (range) | PTVPET1 (range) | PTVPET2 (range) | PTVMTV1 (range) | PTVMTV2 (range) | |
|---|---|---|---|---|---|---|
| Median Volume (cc) | 10.0 (0.7–50.0) | 8.5 (0.7–40.9) | 33.5 (3.9–112.8) | 29.8 (3.7–97.4) | 12.8 (3.4–35.8) | 12.6 (2.7–46.4) |
| Median Mean Dose (Gy) | 80.9 (78.8–81.5) | 80.6 (77.2–81.4) | 79.7 (79.7–79.7)* | 79.4 (72.3–79.9) | 79.7 (79.7–79.7) | 79.3 (74.2–79.8) |
| MedianV95% (%) | 100 (83.7–100) | 99.5 (82.2–100) | 99.6 (94.4–100) | 92.4 (56.6–100) | 100.0 (98.5–100) | 97.0 (59.3–100) |
| Median TCP (%) | 94.8 (93.7–95.1) | 94.7 (92.6–95.1) | 94.2 (94.2–94.2)* | 94.0 (88.2–94.3) | ** | ** |
Median FDG PET positive tumor volume (GTVPET), planning target volume (PTVPET) and the planning target volume for the iso-contour with SUV threshold of 50% of SUVmax (PTVMTV) in cc from both scans. Median Mean dose to GTVPET, PTVPET and PTVMTV; median percentage of target volume receiving more than 95% of prescribed dose and median tumor control probability (TCP) from the two scans.
*
There is no range since the mean dose was normalized to PTVPET1 in the planning.
**
TCP cannot be estimated for the metabolic tumor volumes as the previously published model is not applicable.