TABLE X.
Organ absorbed doses (mGy/100 mAs) and effective doses (mSv/100 mAs) for newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for chest-abdomen-pelvis (CAP) CT examinations using the Siemens SOMATOM Sensation 16 scanner model at tube potentials of 80, 100, and 120 kVp. The significant digits of table entries reflect the precision of the Monte Carlo calculations. Organ doses less than 0.1 mGy/100 mAs are not tabulated (indicated by a hyphen).
| CAP scan | Newborna | 1-yeara | 5-yeara | 10-yeara | 15-year-Female | 15-year-male | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tube potential (kVp) | 80 kVp | 100 kVp | 120 kVp | 80 kVp | 100 kVp | 120 kVp | 80 kVp | 100 kVp | 120 kVp | 80 kVp | 100 kVp | 120 kVp | 80 kVp | 100 kVp | 120 kVp | 80 kVp | 100 kVp | 120 kVp |
| Brain | 0.3 | 0.5 | 0.8 | 0.1 | 0.3 | 0.5 | 0.1 | 0.2 | 0.3 | 0.1 | 0.2 | 0.3 | 0.1 | 0.1 | 0.2 | – | 0.1 | 0.2 |
| Pituitary gland | 0.3 | 0.5 | 0.8 | 0.1 | 0.3 | 0.5 | 0.1 | 0.2 | 0.2 | 0.1 | 0.1 | 0.3 | – | 0.1 | 0.2 | – | 0.1 | 0.1 |
| Lens | 0.3 | 0.5 | 0.8 | 0.1 | 0.2 | 0.4 | 0.1 | 0.1 | 0.2 | – | 0.1 | 0.2 | – | 0.1 | 0.2 | 0.1 | 0.1 | 0.2 |
| Eye balls | 0.3 | 0.5 | 0.9 | 0.1 | 0.2 | 0.4 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.2 | – | 0.1 | 0.2 | – | 0.1 | 0.2 |
| Salivary glands | 4.2 | 7.4 | 10.6 | 0.9 | 1.6 | 2.4 | 0.5 | 0.9 | 1.4 | 0.4 | 0.9 | 1.4 | 0.3 | 0.5 | 0.8 | 0.2 | 0.4 | 0.7 |
| Oral cavity | 1.9 | 3.5 | 5.0 | 0.5 | 1.0 | 1.6 | 0.3 | 0.6 | 1.0 | 0.3 | 0.6 | 0.9 | 0.3 | 0.6 | 0.9 | 0.2 | 0.4 | 0.7 |
| Spinal cord | 6.1 | 11.0 | 16.0 | 4.9 | 9.0 | 13.4 | 3.9 | 7.6 | 11.9 | 2.5 | 4.9 | 7.8 | 2.2 | 4.4 | 7.2 | 1.9 | 3.9 | 6.3 |
| Thyroid | 7.3 | 12.9 | 18.1 | 6.2 | 11.0 | 15.8 | 6.1 | 10.8 | 15.0 | 4.8 | 8.4 | 11.9 | 3.5 | 6.3 | 9.1 | 3.1 | 5.8 | 8.4 |
| Esophagus | 5.9 | 10.7 | 15.7 | 4.8 | 8.9 | 13.4 | 4.2 | 7.9 | 12.2 | 3.4 | 6.6 | 10.6 | 2.8 | 5.6 | 8.9 | 2.5 | 5.2 | 8.4 |
| Trachea | 6.0 | 10.8 | 15.7 | 5.5 | 9.9 | 14.6 | 5.1 | 9.3 | 13.8 | 3.7 | 7.1 | 11.1 | 3.3 | 6.5 | 10.1 | 3.0 | 5.9 | 9.3 |
| Thymus | 6.3 | 11.3 | 16.1 | 5.7 | 10.4 | 15.3 | 5.5 | 10.1 | 14.7 | 4.1 | 7.9 | 12.2 | 3.6 | 7.0 | 10.9 | 3.2 | 6.3 | 10.0 |
| Lungs | 6.9 | 12.2 | 17.4 | 6.6 | 11.8 | 16.9 | 5.6 | 10.2 | 14.9 | 4.7 | 8.9 | 13.3 | 3.8 | 7.3 | 11.1 | 3.6 | 7.0 | 10.8 |
| Breast | 6.7 | 11.6 | 16.2 | 5.2 | 9.4 | 13.5 | 4.8 | 8.6 | 12.5 | 4.1 | 7.5 | 10.9 | 3.7 | 6.8 | 9.9 | 3.6 | 6.6 | 9.7 |
| Heart wall | 7.1 | 12.7 | 18.0 | 6.5 | 11.8 | 17.2 | 5.8 | 10.7 | 15.8 | 4.8 | 9.1 | 13.9 | 4.1 | 7.8 | 12.0 | 3.9 | 7.6 | 11.7 |
| Stomach wall | 6.9 | 12.3 | 17.8 | 5.8 | 10.7 | 15.8 | 5.3 | 9.9 | 14.8 | 4.5 | 8.7 | 13.3 | 4.3 | 8.1 | 12.4 | 3.4 | 6.8 | 10.7 |
| Liver | 7.2 | 12.9 | 18.3 | 6.1 | 11.3 | 16.4 | 5.4 | 10.1 | 15.0 | 4.7 | 8.9 | 13.5 | 4.2 | 8.2 | 12.5 | 3.7 | 7.2 | 11.2 |
| Gall bladder | 6.3 | 11.4 | 16.6 | 5.4 | 10.1 | 15.3 | 4.8 | 9.3 | 14.1 | 4.2 | 8.2 | 12.8 | 3.4 | 6.9 | 11.2 | 2.9 | 6.0 | 9.8 |
| Adrenals | 6.1 | 11.1 | 16.2 | 5.3 | 9.8 | 14.7 | 4.5 | 8.7 | 13.3 | 3.7 | 7.3 | 11.5 | 3.1 | 6.4 | 10.2 | 2.8 | 5.8 | 9.4 |
| Spleen | 7.2 | 12.7 | 18.0 | 6.5 | 11.6 | 16.7 | 5.5 | 10.2 | 14.9 | 5.0 | 9.2 | 13.6 | 4.4 | 8.3 | 12.3 | 3.8 | 7.2 | 10.9 |
| Pancreas | 6.8 | 12.2 | 17.6 | 5.6 | 10.4 | 15.5 | 4.9 | 9.4 | 14.4 | 3.9 | 7.7 | 12.2 | 3.4 | 6.9 | 11.1 | 2.6 | 5.5 | 9.0 |
| Kidney | 7.0 | 12.5 | 17.9 | 6.4 | 11.9 | 17.6 | 5.7 | 10.8 | 16.3 | 4.9 | 9.3 | 14.3 | 4.3 | 8.4 | 13.0 | 3.4 | 6.9 | 10.9 |
| Small intestine wall | 6.8 | 12.1 | 17.3 | 5.5 | 10.2 | 15.1 | 5.3 | 9.9 | 14.8 | 4.2 | 8.2 | 12.7 | 3.9 | 7.6 | 11.8 | 2.8 | 5.8 | 9.4 |
| Colon wall | 7.2 | 12.7 | 17.7 | 6.0 | 10.9 | 15.8 | 5.9 | 10.8 | 15.6 | 5.1 | 9.4 | 13.9 | 5.1 | 9.3 | 13.5 | 3.6 | 7.0 | 10.8 |
| Rectosigmoid wall | 5.8 | 10.5 | 15.3 | 4.3 | 8.1 | 12.3 | 4.0 | 7.7 | 11.8 | 3.1 | 6.1 | 9.7 | 2.4 | 5.0 | 8.0 | 2.0 | 4.1 | 6.6 |
| Urinary bladder wall | 6.5 | 11.3 | 15.8 | 5.0 | 9.2 | 13.7 | 5.3 | 9.7 | 14.0 | 3.3 | 6.4 | 9.8 | 2.1 | 4.2 | 6.7 | 1.7 | 3.5 | 5.7 |
| Prostateb | 4.1 | 7.3 | 10.4 | 2.8 | 5.1 | 7.7 | 1.3 | 2.5 | 3.9 | 0.8 | 1.7 | 2.7 | NAd | NA | NA | 0.4 | 0.8 | 1.4 |
| Uterusa | 5.5 | 10.0 | 14.4 | 4.1 | 7.9 | 12.1 | 3.8 | 7.4 | 11.6 | 2.9 | 5.9 | 9.5 | 2.0 | 4.3 | 7.1 | NA | NA | NA |
| Testesa | 0.9 | 1.6 | 2.4 | 1.0 | 1.9 | 2.7 | 0.8 | 1.5 | 2.3 | 0.3 | 0.7 | 1.2 | NA | NA | NA | 0.3 | 0.7 | 1.2 |
| Ovariesa | 5.7 | 10.4 | 15.1 | 5.1 | 9.5 | 14.2 | 4.6 | 8.7 | 13.3 | 3.4 | 6.7 | 10.8 | 2.7 | 5.4 | 8.8 | NA | NA | NA |
| Skin | 4.1 | 7.0 | 9.6 | 3.2 | 5.5 | 7.6 | 2.5 | 4.5 | 6.2 | 2.3 | 4.0 | 5.5 | 1.9 | 3.3 | 4.6 | 1.8 | 3.3 | 4.5 |
| Muscle | 5.4 | 9.5 | 13.4 | 3.5 | 6.4 | 9.3 | 2.7 | 5.0 | 7.4 | 1.9 | 3.5 | 5.1 | 2.0 | 3.7 | 5.5 | 1.8 | 3.3 | 4.9 |
| Active marrow | 3.1 | 5.9 | 9.0 | 2.8 | 5.4 | 8.5 | 1.7 | 3.5 | 5.8 | 1.9 | 3.9 | 6.5 | 1.8 | 3.9 | 6.6 | 1.6 | 3.3 | 5.7 |
| Shallow marrow | 3.4 | 6.4 | 9.7 | 3.8 | 7.3 | 11.3 | 2.8 | 5.6 | 8.9 | 2.2 | 4.5 | 7.3 | 1.7 | 3.6 | 5.9 | 1.4 | 2.9 | 4.7 |
| ED60c | 5.5 | 9.9 | 14.2 | 4.8 | 8.9 | 13.1 | 4.3 | 7.9 | 11.9 | 3.5 | 6.7 | 10.3 | 2.9 | 5.6 | 8.6 | |||
| ED103c | 5.7 | 10.2 | 14.5 | 4.8 | 8.8 | 13.0 | 4.3 | 7.9 | 11.8 | 3.6 | 6.8 | 10.4 | 3.0 | 5.7 | 8.8 | |||
Gender-independent organ doses for newborn, 1-year, 5-year, and 10-year phantoms were tabulated from male phantom since male and female phantoms have identical anatomy except gender-specific organs.
Gender-specific organ doses were calculated separately from male and female phantoms.
Effective doses were calculated using male and female organ doses as recommended by ICRP. Effective dose for 15-year phantoms was tabulated in 15-year female columns.
Male organ doses are not available (NA) for 15-year female phantom. Female organ doses are not available for 15-year male phantom.