eTable 2. Distribution of exposed body regions by age.
Body region examined |
AOK by age (years) | KiCT-RIS by age (years) | KiCT-PACS by age (years) | |||||||||||
< 1 | 1 ≤ 6 | 6 ≤ 12 | ∑ | < 1 | 1 ≤ 5 | 5 ≤ 10 | 10 ≤ 13 | ∑ | < 0.4 | 0.4 ≤ 2.5 | 2.6 ≤ 7.5 | 7.6 ≤ 12.5 | ∑ | |
Head (%) | 82 | 70 | 62 | 66 | 71 | 73 | 67 | 58 | 66 | 52 | 69 | 64 | 61 | 63 |
Neck (%) | 1 | 2 | 1 | 1 | 1 | 3 | 4 | 4 | 3 | 2 | 1 | 3 | 2 | 2 |
Chest (%) | 9 | 8 | 6 | 7 | 16 | 11 | 10 | 11 | 11 | 30 | 18 | 19 | 19 | 19 |
Abdomen (%) | 3 | 6 | 6 | 6 | 3 | 3 | 5 | 6 | 5 | 7 | 5 | 6 | 6 | 6 |
Pelvis (%) | 0 | 3 | 2 | 2 | 1 | 1 | 1 | 2 | 1 | 0 | 0 | 1 | 2 | 1 |
Limbs (%) | 0 | 1 | 10 | 6 | 0 | 1 | 3 | 8 | 4 | 1 | 0 | 1 | 1 | 1 |
Whole body* (%) | 2 | 8 | 11 | 9 | 3 | 5 | 6 | 7 | 6 | 9 | 6 | 8 | 9 | 8 |
Unknown (%) | 3 | 2 | 2 | 2 | 4 | 3 | 4 | 5 | 4 | 0 | 0 | 0 | 0 | 0 |
∑ | 9 | 27 | 64 | 100 | 10 | 26 | 29 | 34 | 100 | 4 | 19 | 36 | 41 | 100 |
*All examinations in which more than one region of the body was exposed. KiCT, s tudy on the r isk of cancer incidence in children after exposure to ionizing radiation from computed tomography; RIS, radiological information system; PACS, picture archiving and communication system