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When to Perform Quality Tests
QAP should be performed:
•
On a scheduled, weekly basis.
•
When the alert icon appears on the QAP button (Figure 11-1).
•
When there is a perceived loss of image quality.
NOTE: When scheduling QAP tests, plan 15-20 minutes to perform the test. One portion of the test requires
that the system be powered on and in an idle state (i.e., without exposures) for at least 10 minutes.
The 10 minute idle period is based upon the time from the last exposure prior to performing QAP
or system start up. The rest of the test requires approximately 5 minutes to complete.
Figure 11-1 QAP button with alert icon
Quality Test Preparation
Before starting quality tests, be sure to do the following:
•
Close or suspend any open exams
•
Close any exam being reviewed
•
Clear all objects from detector and beam path (QAP only)
The QAP process begins when the QAP button is clicked. The button is located at the bottom of the
Worklist or Acquisition screen.
NOTE: QAP cannot be performed if an exam is open or being reviewed.
Perform Detector Check
Follow this process to perform a Detector Check.
1. Press the [QAP] button at the bottom of the Worklist or Acquisition screen.
The Image Quality screen appears.
Definium 5000 X-Ray System
Operator Manual
Chapter 11: Quality Assurance Process and Maintenance
5197809-1EN
Rev. 4 (13 February 2008)
© 2008 General Electric Company. All rights reserved.
11-2
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