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Lookup NU author(s): Dr Colin Kotre,
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A method for the systematic selection of paediatric CT technique factors is described. The approach is based on the assumption that the level of image noise acceptable for a given adult CT image is also acceptable for the equivalent paediatric examination. A simple exponential attenuation model is proposed. Effective linear attenuation coefficients were initially established from a series of phantom measurements simulating head, chest and abdomen examinations at 120 kVp, then extended for a range of tube potentials and beam qualities using a beam spectral model. Application of the method is demonstrated using phantoms representing head, chest and abdomen sections for neonate and ages I year, 5 years, 10 years, 15 years and adult.
Author(s): Kotre CJ, Willis SP
Publication type: Article
Publication status: Published
Journal: British Journal of Radiology
ISSN (print): 0007-1285
ISSN (electronic): 0961-2653
Publisher: British Institute of Radiology
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