Percentage Error for Various ROIs for 18F-FMISO Validation Study Comparing PET-Based and 4D CT-Based Motion Estimation
| ROI region | CTAC-based | NAC-based | AIM |
| Liver-dome | 13.9% ± 19.9% | 4.9% ± 8.7% | 3.2% ± 4.4% |
| Large tumor (mid right) | 2.2% ± 7.0% | 1.8% ± 6.3% | −1.3% ± 2.0% |
| Small tumor (mid left) | −7.1% ± 2.6% | −6.3% ± 2.5% | −4.3% ± 2.2% |
Data are μErr% (g) ± SD. SD is calculated across all gates.