Results of GTV Delineation Following Different Philosophies for Contour Definition: Patients with Grossly Inhomogeneous 18F-FDG Accumulation
| Patient no. | SUVmax | GTVvis | GTV2.5 | GTV40 | GTVbg | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Volume (mL) | Radius* (cm) | Volume (mL) | Radius* (cm) | Volume (mL) | Radius* (cm) | Volume (mL) | Radius* (cm) | ||||||
| 1 | 20.1 | 467.7 | 4.82 | 494.0 | 4.90 | 96.8 | 2.85 | 264 | 3.98 | ||||
| 6 | 23.8 | 666.2 | 5.42 | 655.7 | 5.39 | 136.5 | 3.19 | 318 | 4.23 | ||||
| 8 | 20.4 | 223.9 | 3.77 | 188.9 | 3.56 | 97.6 | 2.86 | 137 | 3.20 | ||||
| 10 | 11.9 | 159.8 | 3.37 | 107.0 | 2.94 | 52.5 | 2.32 | 73.8 | 2.60 | ||||
| 13 | 19.5 | 375.0 | 4.47 | 428.9 | 4.68 | 69.2 | 2.55 | 280 | 4.06 | ||||
| 14 | 15.9 | 182.7 | 3.52 | 271.4 | 4.02 | 111.8 | 2.99 | 112 | 2.99 | ||||
| 22 | 22.4 | 176.2 | 3.48 | 179.5 | 3.50 | 53.1 | 2.33 | 97.9 | 2.86 | ||||
| 23 | 23.7 | 371.3 | 4.46 | 377.5 | 4.48 | 168.3 | 3.43 | 239 | 3.85 | ||||
| Mean | 19.7 | 327.9 | 4.16 | 337.9 | 4.18 | 98.2 | 2.81 | 190.2 | 3.47 | ||||
↵* Radius values were calculated from volumes as spheric radii.