title: An analysis of radiation dose reduction in paediatric interventional cardiology by altering frame rate and use of the anti-scatter grid.
abstract: The purpose of this work is to investigate removal of the anti-scatter grid and alteration of the frame rate in paediatric interventional cardiology (IC) and assess the impact on radiation dose and image quality. Phantom based experimental studies were performed in a dedicated cardiac catheterisation suite to investigate variations in radiation dose and image quality, with various changes in imaging parameters. Phantom based experimental studies employing these variations in technique identified that radiation dose reductions of 28%-49% can be made to the patient with minimal loss of image quality in smaller sized patients. At present, there is no standard technique for carrying out paediatric IC in the UK or Ireland, resulting in the potential for a wide variation in radiation dose. Dose reductions to patients can be achieved with slight alterations to the imaging equipment with minimal compromise to the image quality. These simple modifications can be easily implemented in clinical practice in IC centres.
authors.affiliation: Centre for Health and Rehabilitation Technologies, Institute of Nursing and Health Research, School of Health Sciences, University of Ulster, Shore Road, Newtownabbey, Co. Antrim, UK. s.mcfadden@ulster.ac.uk
authors.forename: S L
authors.initials: SL
authors.lastname: McFadden
authors.forename: C M
authors.initials: CM
authors.lastname: Hughes
authors.forename: R B
authors.initials: RB
authors.lastname: Mooney
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Winder
mesh_terms: D001822:Body Burden; D006328:Cardiac Catheterization / Q000295:instrumentation* / Q000379:methods*; D002648:Child; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D007494:Ireland; D019047:Phantoms, Imaging; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D015641:Radiography, Interventional / Q000295:instrumentation* / Q000379:methods*; D011874:Radiometry / Q000379:methods; D006113:United Kingdom