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CT imaging uncertainties (1σ) caused by different factors for three tissue groups and total uncertainty calculated by root-sum-square (RSS).
| Energy | Factors | CT imaging uncertainties (1σ) | ||
|---|---|---|---|---|
|
| ||||
| Lung (%) | Soft (%) | Bone (%) | ||
| 80 kVp | Size | 1.00 | 0.34 | 1.25 |
| Position | 0.53 | 0.70 | 0.31 | |
| Time | 0.18 | 0.06 | 0.09 | |
| Total (RSS) | 1.16 | 0.78 | 1.30 | |
| 150 kVp/Sn | Size | 2.02 | 0.16 | 0.69 |
| Position | 0.26 | 0.32 | 0.77 | |
| Time | 0.07 | 0.07 | 0.03 | |
| Total (RSS) | 2.06 | 0.37 | 1.04 | |
