Table 3.
The target centroid shift between GTVPET and IGTV10 in LR, AP, and CC directions, and 3D represents the centroid distance between GTVPET and IGTV10 (mean ± SD, and median, mm)
| Target terms | LR | AP | CC | Centroid distance |
|---|---|---|---|---|
| SUV2.0 | −0.39±1.99 (−0.15) | 0.37±1.70 (0.45) | 3.33±6.26 (1.45) | 5.73±4.83 (4.06) |
| SUV2.5 | −0.65±1.99 (−0.53) | 0.73±1.86 (0.50) | 3.24±6.71 (2.15) | 6.55±4.40 (5.63) |
| SUV3.0 | −0.63±2.20 (−0.46) | 0.74±1.99 (0.40) | 2.48±6.13 (1.95) | 5.78±4.32 (4.43) |
| SUV3.5 | −0.58±2.26 (−0.66) | 0.65±1.99 (0.45) | 2.61±6.75 (1.70) | 6.00±4.93 (4.10) |
| SUV20% | −0.28±2.02 (0.05) | 0.45±1.50 (0.50) | 2.63±6.69 (1.70) | 5.87±4.73 (4.02) |
| SUV25% | −0.59±2.25 (−0.45) | 0.69±1.90 (0.45) | 3.44±6.84 (2.25) | 6.54±7.74 (2.50) |
| SUV30% | −0.81±2.36 (−1.23) | 0.64±1.95 (0.35) | 2.75±6.53 (2.35) | 6.22±4.53 (5.10) |
| SUV35% | −0.78±2.31 (−1.30) | 0.58±2.08 (0.40) | 2.41±6.53 (1.95) | 6.07±4.53 (4.85) |
| SUV40% | −0.88±2.37 (1.35) | 0.56±2.25 (0.50) | 2.12±6.20 (1.75) | 5.91±4.26 (4.92) |
| Manual contouring | −0.77±1.85 (−0.70) | 0.70±2.38 (0.62) | 2.66±5.60 (1.83) | 5.21±4.57 (4.53) |
Abbreviations: GTV, gross target volume; LR, left–right; AP, anterior–posterior; CC, cranial–caudal; SUV, standardized uptake value.