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Conclusions
AEC phantom capable of assessing IQ on all systems
Information on relative radiation dose can be inferred from recorded mA
All systems tested gave results in line with expectations
- IQ levels not precise, but great improvement over no AEC
Each AEC operated differently, with different IQ aims
- Users need to be aware of how their system works, and correct control methods
- Important for vendors to set appropriate default scan protocols and to offer user training and education
Report on this work available at: www.impactscan.org/reports/Report05016.htm
Notes:
To conclude then, the AEC phantom is capable of testing the image quality on each AEC system.
Information on the relative radiation dose at each position can be inferred from the recorded mA.
Each system gave results that were broadly in line with the expected values. Although some of the results were not precisely correct, they represent a considerable improvement over manual setting of the mA with no AEC.
Each system operates differently, and has different image quality aims and philosophy.
It is important for users to be aware of how their system works, and the correct methods for use.
Manufacturers need to ensure that appropriate default scan protocols are supplied, and that sufficient training is given to users.
Finally, a full report on this work can now be downloaded via the ImPACT web site, at www.impactscan.org/reports/Report05016.htm