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Neuroradiology

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06-10-2023 | Computed Tomography | Paediatric Neuroradiology

Growth patterns and ratios of posterior cranial fossa structures in the Japanese pediatric population: a study utilizing CT scans

Authors: Hiroaki Hashimoto, Osamu Takemoto, Yasuyoshi Chiba

Published in: Neuroradiology | Issue 12/2023

Abstract

Purpose

The changes in the proportion of posterior cranial fossa structures during pediatric development remain unclear. This retrospective study aimed to investigate the growth patterns and ratios of these structures using CT scans.

Methods

Head CT scans of pediatric patients with minor head trauma from Osaka Women’s and Children’s Hospital between March 2006 and May 2023 were analyzed. The study segmented the intracranial volume (ICV), posterior cranial fossa volume (PCFV), cerebellum volume (CBMV), and brainstem volume (BSV). Correlation coefficients were calculated among the parameters. Patients aged 0 to 10 years were divided into 15 age-related clusters, and mean and standard deviation values were measured. Growth curves were created by plotting mean values sequentially. Ratios such as PCFV/ICV and (CBMV + BSV)/PCFV were examined. Statistical analyses, including unpaired t tests and logarithmic curve fitting, were performed.

Results

A total of 234 CT scans (97 from females, 115 from infants under 1 year of age) were analyzed. Positive correlations were observed among the parameters, with the strongest between PCFV and CBMV. The growth curves for ICV, PCFV, CBMV, and BSV exhibited a two-phase process, with rapid growth until approximately 4 years of age, followed by stabilization. The ratios PCFV/ICV and (CBMV + BSV)/PCFV showed increasing trends from birth onwards, stabilizing by 4 and 1 years of age, respectively.

Conclusion

This study provides insights into the growth patterns and ratios of posterior cranial fossa structures in the pediatric population. The findings demonstrate a two-phase growth process and increasing trends in the examined ratios.

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Title: Growth patterns and ratios of posterior cranial fossa structures in the Japanese pediatric population: a study utilizing CT scans
Authors: Hiroaki Hashimoto
Osamu Takemoto
Yasuyoshi Chiba
Publication date: 06-10-2023
Publisher: Springer Berlin Heidelberg
Keywords: Computed Tomography
Computed Tomography
Chiari Malformation
Chiari Malformation
Published in: Neuroradiology / Issue 12/2023
Print ISSN: 0028-3940
Electronic ISSN: 1432-1920
DOI: https://doi.org/10.1007/s00234-023-03229-3

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Springer Medicine

Growth patterns and ratios of posterior cranial fossa structures in the Japanese pediatric population: a study utilizing CT scans

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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