:: welcome...

What is a CT scanner ?

A CT (or CAT) scanner produces x-ray images of 'slices' through the body.

See our patient's guide for more information.

Welcome to the web site of the ImPACT group.

We are the UK's CT scanner evaluation centre. We provide a wide range of CT scanner related services to the UK's National Health Service. On our site, we try to give you an idea of our work, as well as providing resources for people involved in CT scanning.

finding your way around this site

Looking to propose an evaluation project? Click here for further details.

Wondering about 64-slice scanner evaluations? Please read this

CT Dosimetry Tool user? Check here for latest information

Please follow the links in the navigation pane on the right hand side of each page to get to the area in which you are interested.

Some of the most current topics and recent additions are listed below.

If you are not sure what you are looking for, please search our site : 
Due to our current status and the long delay in responding to your contact messages, it will be quicker for you if you can find the answer on the site

Have you checked out the latest events at BIR and IPEM ?

:: news

:: CTDosimetry version 1.0.2 available

At long last, a new version of CTDosimetry is now available to download. Version 1.0 adds the ability to calculate effective doses according to ICRP 103, adds data for several more scanners as well as a number of other smaller changes. Version 1.0.2 has some minor bug fixes and was released in November 2009.

ImPACT are changing the model for incorporation of new data into the spreadsheet. Rather than relying on our evaluations for data we are working with the Institute of Physics and Engineering in Medicine's Diagnostic Radiology Special Interest Group (IPEM's DR SIG) to update the data. Read how you can contribute data on the CTDosimetry page.

:: team news

Sue Edyvean - head of the ImPACT group - has just celebrated 25 years working for the NHS. Congratulations Sue !

Sue with the current members of the ImPACT group

:: site status

broken links to reports - an update

We are aware that there were problems with the links from our site to the published reports. This was due to changes on the PASA web site. We have now updated our links and they should work. You can now go to our report list and select the report you want to download

Appologies for the inconvenience this has caused so many of you.

website issues

There are no known issues with the web site at present. Please let us know if you find problems with the site.

:: latest topics