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Comparison of the image contrasts measured on the contrast rods of the Catphan©600 phantom.
| ROI | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
|---|---|---|---|---|---|---|---|---|
| Contrast | CBCT with correction | 137 | 190 | 271 | 1061 | 874 | 249 | 1058 |
| CBCT without correction | 69 | 97 | 141 | 557 | 414 | 121 | 562 | |
| Contrast increase ratio | 2.0 | 2.0 | 1.9 | 1.9 | 2.1 | 2.1 | 1.9 |
