Planmeca Viso G7, User Manual, Page: 17 / 86

6 Pediatric use
6.1 Introduction
Special care should be exercised when imaging patients outside the typical
adult size range, especially smaller pediatric patients whose size does not
overlap the adult size range (typically children under the age of 13).
Exposure to ionising radiation is of particular concern in pediatric patients
because:
1. For certain organs and tumor types, younger patients are more
radiosensitive than adults (i.e. the cancer risk per unit dose of ionising
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 over which the effects
of radiation exposure may manifest as cancer.
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.
6.2 References for pediatric dose optimisation
The following resources provide information about pediatric imaging
radiation safety and / or radiation safety for cone beam computed
tomography devices:
•
Pediatric X-ray Imaging (http://www.fda.gov/Radiation-EmittingProducts/
RadiationEmittingProductsandProcedures/ucm298899.htm)
• Medical X-ray Imaging (http://www.fda.gov/Radiation-EmittingProducts/
RadiationEmittingProductsandProcedures/MedicalImaging/MedicalX-
Rays/default.htm)
6.3 Device specific features and instructions
The X-ray unit provides the following specific design features and
instructions that enable safer use with pediatric patients:
Design feature important to pediatric imaging
(standard or optional)
Refer to section
Head support that can be adjusted for pediatric
patients (standard)
"Patient positioning" on page 32 (2D panoramic
exposure) and "Patient positioning" on page 43
(3D exposure)
Preset control settings which clearly specify the
intended size range (standard)
"Selecting patient size" on page 37 (2D
panoramic exposure) and "Selecting patient
size" on page 47 (3D exposure)
Display and recording of patient dose or dose
index and ability to record other patient
information, e.g. age (standard)
"Control panel" on page 19 (Checking DAP
values)
Planmeca Romexis User's Manual (Entering
date of birth and Generating X-ray log book)
ULD (Ultra Low Dose) setting (optional) "Selecting image resolution and Ultra Low Dose
(ULD)" on page 49
6 Pediatric use
User's manual Planmeca Viso G7 11