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We would like to bring to your attention recent original research we performed in relation to measuring head circumference on MRI brain studies in the paediatric population. Occipitofrontal head circumference (OFC) is a routine component of the paediatric clinical examination1 and the gold standard is to use a tape measure. While reading paediatric MRI brain studies, often a recent measurement is not available, and an attempt is made to assess the head size by estimating the craniofacial ratio which is subjective. It would be of benefit to know if the head circumference can reliably be estimated using measurements from the MRI scan.
A recent study by Rau et al used an ovoid region of interest on a single axial image to obtain the head circumference.2 Obtaining a circumference …
Contributors AS is the guarantor for this project. MAS conceived the project. MAS and AS developed the theory and performed the measurements. JEP analysed the data. All authors helped shape the research, analysis and manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
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