A Survey of Organ Equivalent and Effective Doses from Diagnostic Radiology Procedures
Table 2
(a) Estimated entrance surface dose (ESD) and effective dose for all projections and examinations from conventional radiograph examinations. (b) Estimated effective dose from computed tomography examinations
(a)
Projection
Examination
Entrance Surface Dose (mGy)
Effective dose (mSv)$
Range
Mean
Range
Mean
AP
Abdomen
0.44–10.31
1.82
0.025–0.77
0.14
AP
Cervical spine
0.12–1.01
0.62
0.0046–0.037
0.023
Lateral
Cervical spine
0.20–0.61
0.44
0.0019–0.0034
0.0025
Cervical spine
*
0.12–1.01
0.50
0.0019–0.037
0.0103
Lateral
Chest
0.02–3.02
0.94
0.0012–0.33
0.11
PA
Chest
0.03–0.48
0.14
0.0026–0.071
0.0204
Chest
*
0.02–3.02
0.57
0.0012–0.33
0.066
Lateral
Head
0.32–2.02
0.76
0.0027–0.0204
0.0071
PA
Head
0.36–2.93
1.67
0.0037–0.048
0.0202
Head
*
0.32–2.93
1.22
0.0027–0.048
0.014
AP
Hip
0.19–3.60
0.87
0.0078–0.16
0.034
AP
Lumbar spine
0.66–10.02
3.72
0.055–0.95
0.38
Lateral
Lumbar spine
1.28–16.08
6.28
0.025–0.39
0.13
Oblique
Lumbar spine
0.73–3.22
2.41
0.06–0.13
0.093
Lumbar spine
*
0.66–16.08
4.65
0.025–0.95
0.21
AP
Pelvis
0.36–5.64
1.57
0.040–0.65
0.16
AP
Shoulder
0.11–0.63
0.25
0.00082–0.0047
0.0019
AP
Thoracic spine
1.08–3.56
2.21
0.11–0.35
0.22
Lateral
Thoracic spine
1.65
1.65
0.032–0.31
0.32
Thoracic spine
*
1.08–3.56
1.99
0.032–0.35
0.14
*Values are the results of all the various projections of the examination.
$All effective dose data are rounded to 2 significant figures.
