I am trying to reach out regarding the forthcoming IRMER Audit. This National Audit is a collaborative effort between the RCR, SoR, BIR and IPEM and helps to reinforce radiation safety through an examination of professional practices (rather than regulatory inspection).
One important aspect of the Audit is to address Diagnostic Reference Levels, DRLs particularly for CT examinations and in children. The dose audit, led by the Institute of Physics in Medicine and assisted by Public Health England is intended to develop paediatric weight-specific CT DRLs for CT abdomen in the weight categories: <5 kg, 5–<15 kg, 15 –<30 kg, 30 –<50 kg, and 50–< 80 kg . As this is intended to be a retrospective collection, back calculations through the volume of administered iodinated contrast-medium is suggested.
As Chair of the IRMER Audit Work Group, I write to inform you and your SIG of the impending audit, due for launch to all departments of clinical radiology in January.
As some of your SIG members may be asked to help advise regarding this dose audit, the back-calculation that we have suggested for those departments that don’t collect weight data is based on your local calculation for weight-specific contrast volume, eg. we use 2ml per kg.
Finally, please let us know if you feel that there are any of the weight categories: <5 kg, 5–<15 kg, 15 –<30 kg, 30 –<50 kg, and 50–< 80 kg for which data may be sparse (we ask for a minimum of 10 exams in any of the categories), or difficult to mine.
I am most grateful for your help to pass this onto colleagues in your SIG if you feel it would be useful. All data from the audit will be anonymised as usual and results shared only with the 4 collaborating professional institutions. For the RCR, our point of contact will be Audit Leads.
Northwick Park Hospital