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OPERATOR'S MANUAL
EN
8.1.4. 3D IMAGE QUALITY CONTROLS
- Acquisition of Blank image
The Blank acquisition allows optimising the scanning performance. This short procedure is compulsory and the NNT
software requires it every two weeks.
Please find below the sequence of instructions to be carried out for a correct acquisition.
Make sure the scan area is empty.
After a few seconds the acquired blank image will
appear.
Once the blank has been acquired, check the image
does not present halos or black spots.
If the above-mentioned spots are present, check that
the scan area is actually empty, then click again on “X-
ray Flash” and repeat the acquisition procedure. If the
image is correct, click the “Stop” button.
- 3D image quality controls by means of phantom
The quality control consists in the execution of the standard examination on a suitable QA phantom, through an
automatic procedure.
This periodic monitoring, to be performed at least once a year, ensures the verification of the proper functioning of
the device and the validity of the results obtained.
Refer to paragraph 8.2 “QA phantom acquisition”.
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