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As the size of these objects decreases, it turns more difficult to recognize them
for the same contrast level.
In order to determine the LCD, the software will use a homogeneous
slice from section B of the phantom. The center region of this slice is divided in
a number of circular ROIs with same diameter. The mean pixel value of each
ROI is calculated, and the standard deviation of the means is obtained. The
contrast of an object with the same size of these ROIs is set to 3.29 times the
standard deviation to be distinguished from the background.
This analysis
is repeated with different ROIs sizes and a contrast-detail diagram is created in
the report.
14.5. DOSE MEASUREMENT
For periodic measurement of the dose it will use air kerma-area product
(KAP).
A KAP-meter dosimeter is required for this inspection.
Place the dosimeter at the tube exit and measure KAP value for all available
examination protocols.
Access Tools
Dose measurement
Insert all values into the software to generate a report that can be saved to
compare the results to previous or optimum values.
Summary of Contents for EAGLE 3D
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