Growth Curves for Intracranial Volume and Two-dimensional Parameters for Japanese Children without Cranial Abnormality: Toward Treatment of Craniosynostosis

Yousuke Tomita, Masahiro Kameda, Takaya Senoo, Eijiro Tokuyama, Chiaki Sugahara, Satoru Yabuno, Yosuke Okazaki, Satoshi Kawauchi, Kakeru Hosomoto, Tatsuya Sasaki, Takao Yasuhara, Isao Date

Research output: Contribution to journalArticlepeer-review

Abstract

In the management of patients with craniosynostosis, it is important to understand growth curve of the normal cranium. Although three-dimensional (3D) computed tomography (CT) images taken in thin slices are easily available nowadays, data on the growth curves of intracranial volume (ICV), cranial length, cranial width, and cranial height in the normal cranium are mainly based on older studies using radiography, and there are insufficient reports using CT images especially taken in thin slices. The purpose of this study was to establish growth curves in the normal cranium of Japanese children using thin-slice images. Cranial images of 106 subjects (57 males, 49 females; aged 0–83 months) without significant cranial abnormalities were retrospectively analyzed. Using thin-slice CT images, the ICV and two-dimensional parameters such as cranial length, cranial width, and cranial height were measured by iPlan, followed by gener-ating growth curves and calculating cephalic index (CI). ICV calculated from thin-slice CT images was compared with that obtained by substituting two-dimensional parameters into Mackinnon formula. The ICV growth curves for males and females were similar in shape. As with the ICV, the two-dimensional parameters increased most rapidly in the first year after birth. There was no significant difference in CI between the sexes or among any age groups. ICV calculated from thin-slice 3D CT images was 60% of that obtained from Mackinnon formula. These data will enable us to compare these specific measurements in craniosynostosis patients directly with those of normal children, which will hopefully help in managing these patients.

Original languageEnglish
Pages (from-to)89-96
Number of pages8
Journalneurologia medico-chirurgica
Volume62
Issue number2
DOIs
Publication statusPublished - 2022
Externally publishedYes

Keywords

  • Cranial breadth
  • Cranial height
  • Cranial length
  • Intracranial volume
  • Normal cranial morphology of Japanese children

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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