Never mind the dose – feel the image quality!
29 Sep 2014
The learning objectives of this presentation are to:
• Appreciate that dose optimisation does not necessarily mean dose
reduction: images must always be adequate for the diagnostic task.
More clinical harm can be done through inadequate image quality than
radiological damage caused through high radiation doses;
• Reflect that there may be a “right” radiation dose for a given diagnostic
task, and this could be evidence-based;
• Understand that individual radiation doses can and should go up as
well as down, e.g. by using size-specific protocols, in order to ensure
adequate image quality across the board;
• Appreciate that, within the context of optimisation, radiation doses
may need to go up before they go down in order to ensure diagnostic
confidence;
• Consider that the effect of novel dose reduction features on image
quality needs to be evaluated before use.
0.5 CPD credit.
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Duration:20 mins
Speaker info
Dr Elly Castellano
Elly was educated in physics and medical physics at the universities of Oxford, Surrey and London. She trained at St Mary’s Hospital, London, in nuclear medicine, radiotherapy and diagnostic radiology physics, and thereafter specialised in the latter. She is a registered clinical scientist, chartered scientist and chartered radiation protection professional. She leads a team of medical physicists which provides diagnostic radiology physics services to The Royal Marsden and the Royal Brompton amongst others. In addition to her clinical work Elly is active in research with over 20 publications to date. Her main research interests are in CT dosimetry and CT optimisation. She runs the advanced x-ray and CT imaging module of the MSc Clinical Sciences (Medical Physics) at King’s College, London, and lectures extensively in the UK and abroad. She is a contributing author to several text books and handbooks on CT and patient radiation dosimetry.