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Values of the coefficient of variation (%) in forgan values obtained for eight CT scanners (Table 1) performing a full 32 cm long CT scan of the chest, at three x-ray tube voltages.
| Tube voltage (kV) | Heart | Lung | Breast | Thymus | Stomach | RBM | Liver | Thyroid |
|---|---|---|---|---|---|---|---|---|
| 80 | 10 | 8.5 | 17 | 10 | 7.2 | 5.9 | 7.6 | 12 |
| 120 | 5.4 | 3.9 | 10 | 5.6 | 4.0 | 4.0 | 3.8 | 6.4 |
| 140 | 5.6 | 6.1 | 12 | 7.0 | 5.2 | 6.0 | 5.6 | 9.7 |
