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