User Manual – General instruction for use
USER MANUAL • X-MIND prime • (19) • 01/2020 • NXMPEN010C
Note
During panoramic exams, the value of the exposure parameters varies
according to a fixed curve, to compensate for variations in absorption by the
patient's tissues. in this way, it is possible to obtain a good uniformity of the
image contrast. In particular, the chosen value of the kV is lowered in the
initial and end sections of the panoramic exam and increased in the
incisors/canine zone.
The tube current varies according to the kV, also if the set value is slightly
increased on the initial/end sections. These variations have the effect of
compensating for greater X-ray absorption in the spinal column area. As an
example, the variation of the parameters follows the curve below:
The values displayed during the panoramic exam correspond to the ones
chosen by the user, while the real value in the various positions of the X-ray
cycle can be different; in any case, the system guarantees that the accuracy
of the exposure parameters is always within the limits set by IEC 60601-1
international standards for the safety of medical devices. In particular, in
accordance with IEC 60601-2-63, the maximum deviation (including the
correction according to the above curve and instrumental doubt) is within
±10% for the kV, while for the tube current it is within ±15%.
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