Myray 708G, Operator'S Manual

Page: 48 / 1174

EN OPERATOR'S MANUAL
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6.4. SPECIAL CONSIDERATIONS FOR CBCT EXAMINATIONS WITH CHILDREN OR SMALL PATIENTS
The hyperion X5 device has been specifically designed for patients that are more than 104 cm in height and more than
19 Kg in weight. These height and weight measurements approximately correspond to that of an average 4 year old.
Before performing CBCT examinations on pediatric patients, it is necessary to consider their increased sensitivity to
ionizing radiation. It is due to many factors, such as: a longer life expectancy compared to adult patients, a higher
cancer risk per dose unit of ionizing radiation and the impact that such radiation could have on organs which are still
developing.
A CBCT exam has only to be performed if it is strictly necessary to solve a medical problem, using protocols that
include the minimum effective dose to obtain an adequate image quality (according to the ALARA principle, "As Low
As Reasonably Achievable"). We recommend not to perform repeated CT studies on children, unless they are essential
to reach a diagnosis. Before carrying out an X-ray examination, all indications and the medical history of the patient
must be carefully examined.
It is possible to use hyperion X5 on children and small patients, within the limitations described in the indications for
use. To that end, the available functions are:

fields of view with reduced dimensions, e.g.: 6x6 (volume diameter 6 cm, height 6 cm), 6x7, 8x6, 8x7;

Eco Scan mode, a low-dose protocol having a scanning time shorter than or equal to the default mode (6.4s-9.6s
in standard mode, 11.2s in Hi-Res mode);

automatic calculation of the minimum effective X-ray parameters for the examination, based on the size and density
of the examined volume (MRT technology);

before the scan, indication of the dose values selected by the software;

possibility of performing the exam with the patient in a seated position, in order to limit movement risks;

adjustable craniostat to secure the patient's head.
Furthermore, we recommend to take all the necessary steps to reassure the child before starting the acquisition
procedure. The immobility of the patient is crucial to obtain an adequate image quality.