Did you know .?.
CT scanning is a medical imaging technology; established in Britain in 1971 , it can now be found world-wide
This is the web site of the ImPACT CT scanner evaluation group.
ImPACT was the UK's CT scanner evaluation centre for 25 years. Their experts
provided a wide range of CT scanner related services to the NHS and other providers of healthcare; primarily in
the UK, but the knowledge and information has benefitted users and patients
around the world.
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.
On this site, we give you an idea of the work undertaken by the group, as
well as providing ongoing access to some of our many resources for use by all
people involved in CT scanning.
Some of the most current topics and recent additions are listed below.
- It is with sadness that we learnt of the death of Dr John Perry, one of
of CT scanning and ImPACT.
A further tribute will appear on this site soon.
if you have any hot topics we should know about, please contact us
:: ImPACT news
:: keeping involved
Past ImPACT staff are involved with a number of courses and events in the
coming months. Do please come along and say 'hi'.
See below for more details
:: celebrating CT
The 2012 BIR president's conference was a
tribute to Godfrey Hounsfield and 40 years of clinical CT scanning.
A brief report on this event should be available soon; in the meantime you can
watch many of presentations on a well known video sharing site, including Willi
:: Guidance on testing
Oct 2012 Quality Assurance Programme for Computed Tomography
IAEA have released a report as part of their human health series, entitled
Quality Assurance Programme for Computed Tomography: Diagnostic and
Therapy Applications ... ... read more
:: NICE guidance issued
Jan 2012 ** DG3 computed tomography scanners for cardiac imaging ...
New NICE guidance on New generation cardiac CT scanners... read more ...
:: wide beam dosimetry guidance
Oct 2011 Status of Computed Tomography Dosimetry for Wide Cone Beam
:: 40 Years of CT
** 'History of CT' page **
To celebrate the 40th anniversary of the first clinical CT scan, which took
place at Atkinson Morley's Hospital in London on 1st October 1971, we have
added a 'History of CT' page to this site.
:: CTDosimetry version 1.0.4 available
Latest version of CTDosimetry
is available to download.
:: team news
::update on our current status
ImPACT was closed down from 29th
September 2011 due to cessation of central funding
This web site will remain open but will not be regularly maintained.
We will try to keep it relatively up to date. Please be patient with us as this
is now done on a volunteer basis.
We will provide updates if anything changes with our status.
Please check back to this site when you can. Otherwise do please drop us a line
Emails sent to "personname"at"impactscan.org will be forwarded to the
General emails (e.g. impact at impactscan.org) will only be reviewed
It would be particularly interesting to hear how our work has helped you over
the years. Thanks to all those who have already written to express their
support for both the work and the staff involved.
:: finding your way around this site
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.
If you are not sure what you are looking for, please search our site :
Due to our current status and hence the long delay in
responding to your contact messages, it will be quicker for you if you can find
the answer on the site
King’s Imaging Technology Evaluation Centre (KITEC) are running a
course on CT
Principles in PETCT and SPECT/CT. Many of the old ImPACT team are involved.
Sue Edyvean will be talking at UKRC 2013
Considering developments in radiation protection involved in CT scanning at
BIR this autumn. Check out their website for further details of one of
:: web site status
Due to the closure of the ImPACT group, this site is now only infrequently
updated and maintained. We are attempting to keep things up to date, but please
forgive the tardiness
broken links to reports - an update
We are aware that there were problems with the links from our site to the
archive of published reports. This was due to closure of PASA and the transfer
of their copywrite material. We have now updated our links and they should
work. However, there may still be issues arising as responsibility for
maintaining CEP reports passes from NHS PASA to the Department of Health. You
can now go to our report list and select the report
you want to download.
Apologies for any inconvenience that this may have caused you.
There are no other known issues with the web site at present. Please let us
know if you find problems with the site.
:: latest topics