User's Manual

Exposure to ionizing radiation is of particular concern in pediatric patients because:
1. For certain organs and tumor types, younger patients are more radio sensitive than
adults (the cancer risk per unit dose of ionizing radiation is higher for younger
patients);
2. Use of equipment and exposure settings designed for adults of average size can
result in excessive and unnecessary radiation exposure of smaller patients;
3. Younger patients have a longer expected lifetime putting them at higher risk of
cancer from the effects of radiation exposure.
To help reduce the risk of excessive radiation exposure, you should follow the ALARA
(As Low As Reasonably Achievable) principle and seek to reduce radiation dose to only
the amount necessary to obtain images that are adequate clinically.
Additional guidance and recommendation are provided by the Alliance for Radiation
Safety in Pediatric Imaging (Image Gently Alliance) https://www.imagegently.org/
Table 1: Techniques for Typical Body Parts
Body Parts Patient Size kVp mAs SID Grid
Abdomen AP/PA
Very Low Birth Weight (Less than
1.5 Kg)
55 1 1m no
Low Birth Weight (Between 1.5
and 2.5 Kg)
55 1.6 1m no
Newborn (Age is less than 1
month and Weight above than
2.5 Kg)
70 1.6 1m no
Infant (Age is between 1 month
and 2 years)
73 2 1m no
Child (Age is between 2 years
and 12 years)
75 7.1 1m yes
Preadolescent (Age is between 12
years and 13 years)
75 14 1m yes
Adolescent (Age is between 12
years and 21 years)
75 20 1m yes
Adult Small 75 18 1m yes
Adult Medium 80 22 1m yes
Adult Large 85 32 1m yes
Safety and Regulatory Information
1-26 AJ4312 | 2020-02-10