Paediatric CT optimisation utilising Catphanw 600 and age-specific anthropomorphic phantoms
- Santos, Joana
- Batista, Maria
- Foley, Shane
- Paulo, Graciano
- McEntee, Mark
- Rainford, Loiuse
DOIAbstract
The purpose of the study is to perform phantom-based optimisation of paediatric computed tomography (CT) protocols and quantify the impact upon radiation dose and image noise levels. The study involved three Portuguese paediatric centres. Currently employed scanning protocols for head and chest examinations and combinations of exposure parameters were applied to a Catphan(®)600 phantom to review the CT dose impact. Contrast-noise ratio (CNR) was quantified using Radia Diagnostic(®) tool. Imaging parameters, returning similar CNRs (<1) and dose savings were applied to three paediatric anthropomorphic phantoms. OsiriX software based on standard deviation pixel values facilitated image noise analysis. Currently employed protocols and age categ...
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