Doses measured for all protocols on a 320-row scanner (Toshiba Aquilion ONE)
| Organ | W (T) | Noncontrast Head CT Volume | Noncontrast Head CT Incremental | CTP + CTA (Intractranial) | CTA (Neck) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Dose (mGy) | Weighted Dose (mSv) | Dose (mGy) | Weighted Dose (mSv) | Dose (mGy) | Weighted Dose (mSv) | Dose (mGy) | Weighted Dose (mSv) | ||
| Hemispheres | 0.01 | 31.42 | 0.31 | 41.91 | 0.42 | 69.91 | 0.7 | 3.34 | 0.03 |
| Skin (scan area) | 36.86 | 42.34 | 92 | 3.84 | |||||
| Skin (total) | 0.01 | 19.19 | 0.19 | 21.47 | 0.21 | 46.49 | 0.46 | 3 | 0.03 |
| Eye lenses | 40.23 | 44.31 | 44.01 | 2.39 | |||||
| Pituitary gland | 25.24 | 38.93 | 52.69 | 5.3 | |||||
| Bone marrow (scan area) | 7.67 | 12.77 | 30.17 | 14.8 | |||||
| Bone marrow (total) | 0.12 | 4.2 | 0.5 | 6.97 | 0.84 | 15.81 | 1.9 | 8.57 | 1.03 |
| Thyroid gland | 0.04 | 2.54 | 0.1 | 3.39 | 0.14 | 5.37 | 0.21 | 58.6 | 2.3 |
| Lung | 0.12 | 0.78 | 0.09 | 0.4 | 0.05 | 0.61 | 0.07 | 4.36 | 0.5 |
| Esophagus | 0.04 | 0.5 | 0.02 | 0.63 | 0.03 | 0.46 | 0.02 | 3.51 | 0.14 |
| Breast | 0.12 | 1.52 | 0.18 | 0.59 | 0.07 | 0.98 | 0.12 | 2.17 | 0.26 |
| Liver | 0.05 | 0.77 | 0.04 | 0.42 | 0.02 | 0.29 | 0.01 | 1.16 | 0.06 |
| Stomach | 0.12 | 0.63 | 0.08 | 0.3 | 0.04 | 0.29 | 0.03 | 1.18 | 0.14 |
| Ovaries | 0.08 | 0.48 | 0.04 | 1.01 | 0.08 | 0.42 | 0.03 | 0.36 | 0.03 |
| Lower colon | 0.12 | 0.46 | 0.06 | 0.43 | 0.51 | 0.23 | 0.03 | 0.29 | 0.03 |
| Bladder | 0.04 | 0.68 | 0.03 | 0.59 | 0.02 | 0.74 | 0.03 | 0.33 | 0.01 |
| Testes | 0.08 | 0.29 | 0.02 | 0.53 | 0.04 | 0.43 | 0.03 | 0.34 | 0.03 |
| Effective dose (women) | 1.64 | 2.43 | 3.61 | 4.56 | |||||
| Effective dose (men) | 1.62 | 2.39 | 3.61 | 4.56 | |||||