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Lookup NU author(s): Claire Chapple, Simon Willis
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There is limited data currently available for making dose and risk assessments for paediatric patients undergoing computed tomographic examination. A method has been developed to correlate the risk-related quantity, effective dose, to the more simply derived quantity dose-length product. This involved scanning a series of paediatric anthropomorphic phantoms containing thermoluminescent dosimeters to measure effective dose for scans of various anatomic regions. The quantity effective dose per dose-length product was calculated and plotted as a function of patient size. This showed a simple exponential relationship. and equations of fit were derived to enable the calculation of effective dose for a patient of any size. Measurements carried out on a second scanner and for alternative scan volumes indicated that the method could be generally utilized.
Author(s): Chapple CL, Willis S, Frame J
Publication type: Article
Publication status: Published
Journal: Physics in Medicine and Biology
Year: 2002
Volume: 47
Issue: 1
Pages: 107-115
ISSN (print): 0031-9155
ISSN (electronic): 1361-6560
Publisher: Institute of Physics Publishing Ltd.
URL: http://dx.doi.org/10.1088/0031-9155/47/1/308
DOI: 10.1088/0031-9155/47/1/308
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