Practical Aspects in Optimisation of Radiological Protection in Digital Radiography, Fluoroscopy, and CT


Draft document: Practical Aspects in Optimisation of Radiological Protection in Digital Radiography, Fluoroscopy, and CT
Submitted by Craig Moore, Hull University Teaching Hospitals NHS Trust
Commenting on behalf of the organisation

Section 2.2.2 - AECs:

I do not agree that 'constant EI is recommended as the method of choice for setting up AECs for digital radiography.' We have published 2 papers on this subject in recent years both concluding that contant SNR as the optimum metric:

  • C.S.Moore, T.J. Wood, G Avery, S Balcam, L Needler, A.W. Beavis, J.R. Saunderson , “An investigation of automatic exposure control calibration for chest imaging with a computed radiography system”. Phys. Med. Biol. 59 (2014) 2307-2324. DOI: 10.1088/0031-9155/59/9/2307
  • C.S Moore, T.J. Wood, G Avery, S Balcam, L Needler, H Joshi, J.R. Saunderson and A.W. Beavis, Automatic exposure control calibration and optimisation for abdomen, pelvis and spine imaging with a computed radiography system Physics in Medicine and Biology. 2016Oct 7;61(21):N551 DOI: 10.1088/0031-9155/61/21/N551
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Furthermore, we have calibrated all of our DR and CR systems using the practical method we published:

  • Craig S Moore, Tim J Wood, Steven Jones, John R Saunderson and Andrew W Beavis, A practical method to calibrate and optimise automatic exposure control devices for computed radiography (CR) and digital radiography (DR) imaging systems using the signal-to-noise ratio (SNR) metric, Biomed. Phys. Eng. Express 5 (2019) 035027 DOI 10.1088/2057-1976/ab123b 

Surely you should at least cite these independent references?


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