Planmeca ProSensor HD, User Manual

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10 Image quality control
Verify the image quality after installing the software and before patient
exposure. Perform quality control check according to the requirements of
local authorities, using for example Quart phantom or similar.
It is recommended to regularly monitor the image quality using the same
phantom according to the requirements of local authorities. See also the
Constancy test manual for Planmeca Digital Intraoral X-ray System.
Before performing phantom exposures verify that the brightness and
contrast settings of the monitor are accurate by using a SMPTE test pattern
or similar.
10.1 Quality check using SMPTE test pattern
The test image is specified by the Society of Motion Picture and Television
Engineers (www.smpte.org), and follows the SMPTE Recommended
Practise RP 133-1991 Specifications for Medical Diagnostic Imaging Test
Pattern for Television Monitors and Hard-Copy Recording Cameras. This
image should be used for monitor setting and quality checks performed:
•
Before every working day: The 5% gray field inside the 0% field and the
95% gray field inside the 100% field should be visible. If not, adjust the
brightness and contrast of the monitor.
• Every month: The line raster in the corners and in the centre must be
visible, the vertical and horizontal lines must form undistorted squares
and the homogeneous grey background must not be coloured.
10 Image quality control
16 Planmeca ProSensor® HD User's manual