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Table 3
Dose ratios between the O-ring system and the C-arm system for a thoracic acquisition.
| Organ | Dose ratio O-ring system/C-arm system for a thorax acquisition | ||
|---|---|---|---|
| Ratio by organ | Mean ratio for the organs in this sector | Section of the phantom represented in Figure 3 | |
| Brain | 4.5 | 3.9 | Section 1 |
| R. Eye | 3.5 | ||
| L. Eye | 3.7 | ||
| Esophagus | 4.2 | 3.8 | Section 2 |
| Thyroid | 3.5 | ||
| R. Lung | 3.3 | 3.8 | Section 3 |
| L. Lung | 6.6 | ||
| R. Breast | 4.4 | ||
| L. Breast | 4.1 | ||
| Heart | 4.5 | ||
| Liver | 2.8 | ||
| Spleen | 3.0 | ||
| Stomach | 1.9 | ||
| Pancreas | 2.3 | 2.3 | Section 4 |
| R. Kidney | 2.2 | ||
| L. Kidney | 2.5 | ||
| Colon | 2.7 | 2.8 | Section 5 |
| Uterus | 3.0 | ||
| Mean ratio | 3.5 | ||
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