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CT scanner automatic exposure control systems. Report 05016, Feb-05

Automatic exposure control (AEC) systems for CT scanners are now available from all the major scanner manufacturers. These systems have aim to adjust the x-ray tube current to compensate for different levels of patient attenuation of the scanner's x-ray beam. This report discusses the CT AEC systems in current use, covering the technology and methods of operation. It lists the capabilities of present systems and includes the results of testing on current 16 slice scanners.

Electronic access to a pdf file version of this report is available from the CEP website.

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pdf file versions of reports published since 2002 can be downloaded from the CEP web site. Electronic reports published earlier than this are available to UK NHSnet users only, from the NHSNet evaluation web site. Direct links to each pdf are provided on the report summary pages on the ImPACT web site. The pdf files can be viewed and printed using Adobe Acrobat, or similar software.

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