Chapter 10: Image Acquisition
5495975-1EN Rev.9
10-30
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Acquire AEC Images
Acquiring images in the AEC mode requires precise light alignment and patient positioning.
WARNING
Collimation must be active over the AEC chambers being used or FIXED mode must
be used in order to prevent possible patient over-exposure.
Use this process to produce images with the AEC feature.
1. Open an exam from the Worklist and select the protocols.
The Acquisition screen appears.
2. Select the protocol to perform.
3. Change the
Patient Size
, if necessary.
CAUTION
It is critical to select the proper patient size on the Acquisition screen. The incor-
rect Patient Size may result in an unnecessarily large radiation dose or multiple
exposures.
4. Change the
Receptor,
if necessary.
5. Click [AEC], if necessary.
Depending on the current protocol, AEC may already be selected by default.
The AEC mode displays the Ion Chamber selections.
The Fixed mode removes the Ion Chamber selections.
You are able to alter this selection at any time to accommodate the requirements of a specific
examination.
6. Change the selected
Ion Chambers
, if necessary.
Selected (active) AEC cells will appear highlighted on the acquisition screen.
7. Make other technique adjustments as necessary.
You are able to adjust the kV, mA, and Focal Spot.
8. Confirm or select the
Cu Filter
, if necessary.
9. Position the patient so that the anatomy of interest is centered over the selected AEC cells.
Note:
The body part must cover the selected ion chambers in order to achieve the appropriate expo-
sure.
10. Collimate the light field to encompass the detection area being used.
11. Collimate to the desired area. This ensures the receptor sensing area is aligned with the patient’s
anatomy.
12. Confirm the Patient Position. Change if necessary.
