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HU variability and accuracy measurements, for various cylinders, measured at different slices
| Metric | Measured Slices | Phantom Diameter (cm) | AZOR | Saddle |
|---|---|---|---|---|
| HU Variability (Volume) | 150 – 500 | 15 | ±150 HU | ±30 HU |
| 150 – 530 | 12.5 | ±143 HU | ±20 HU | |
| 150 – 500 | 10 | ±140 HU | ±32 HU | |
| HU Accuracy (Central Slice) | 350 | 15 | 9 HU | −4 HU |
| 12.5 | 2 HU | −1 HU | ||
| 10 | 1 HU | 0 HU |
