Mean effective doses (millisievert) for 3 age groups when scanned with local low- and high-dose protocols in comparison with literature-derived calculated effective doses and literature-derived effective doses
| Age | Low-Dose Protocol | High-Dose Protocol | Swartz et al 20098a | Thomas et al 20089b | Lutz et al 20075b | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTDI | DLP | Deff | CTDI | DLP | Deff | CTDI | kV | mAs | Deff | kV | mAs | Deff | kV | mAs | Deff | |
| 1 year old | 8.8 | 40 | 0.3 | 63 | 285 | 1.8 | 34 | 120 | 150 | 0.9–1 | 120 | 200 | 2.6 | – | – | – |
| 5 year old | 10.8 | 49 | 0.25 | 63 | 288 | 1.4 | 45 | 120 | 200 | 0.97–1.1 | 120 | 200 | 1.7 | – | – | – |
| Adult | – | – | – | – | – | – | – | 120 | 320 | 1.2–1.3 | – | – | – | 120 | 140 | 0.3 |
a Indicates literature derived calculated effective doses.
b – indicates literature-derived effective doses.
When available, CTDI (milligray), DLP (milligray × centimeter), and kilovolt/milliampere-second are shown also for literature-derived protocols.