Variable | Age (years) | FFD (cm) | kVp | mAs | mA | |||
Range | Derived | Range | Derived | Range | Derived | |||
Chest (PA) | 0 - 3 | 90 - 100 | 50 - 60 | 52 | 3.20 - 6.25 | 3.20 | 50 - 125 | 100 |
4 - 9 | 150 | 50 - 65 | 55 | 3.20 - 6.25 | 4.5 | 50 - 160 | 140 | |
10 - 17 | 150 | 50 - 75 | 65 | 4.0 - 10.0 | 6.5 | 80 - 250 | 220 | |
21 - 89 | 150 - 180 | 68 - 82 | 73 | 5.25 - 12.60 | 10 | 160 - 250 | 230 | |
Lumbo-sacral | 33 - 92 | 90 - 100 | 78 - 130 | 94 | 8.0 - 25.0 | 20 | 100 - 320 | 250 |
Pelvis | 18 - 88 | 90 - 100 | 70 - 85 | 75 | 8.0 - 16.0 | 12.8 | 80 - 250 | 220 |
Knee | 21 - 86 | 90 - 100 | 45 - 70 | 62 | 4.0 - 6.30 | 5.0 | 63 - 125 | 100 |
Femur | 24 - 90 | 90 - 100 | 60 - 85 | 75 | 6.3 - 20.0 | 10.0 | 100 - 250 | 200 |
Cervical/S (AP) | 32 - 87 | 90 - 100 | 63 - 88 | 75 | 4.0 - 12.5 | 6.4 | 50 - 150 | 100 |
Skull (OF/Lat) | 18 - 91 | 90 - 100 | 74 - 80 | 70 | 8.0 - 10.0 | 8.5 | 160 - 200 | 180 |