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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

ERTEKIN, Tolga et al. The Intracranial and Posterior Cranial Fossa Volumes and Volume Fractions in Children: A Stereological Study. Int. J. Morphol. [online]. 2017, vol.35, n.4, pp.1465-1472. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022017000401465.

The size of intracranial cavity (IC) and posterior cranial fossa (PCF) plays an important role in the pathophysiology of various disorders. In this study, we aimed at establishing normal volume data of the IC and PCF in Turkish population according to age and sex by using stereological method. This study was carried out retrospectively on 339 individuals (168 females and 171 males) between 0 and 18 years old with no medical or neurological disorders that affected the skeletal morphology of the cranial cavity. Volumetric estimations were determined on computed tomography (CT) images using point-counting approach of stereological methods. Intracranial volume (ICV) and posterior cranial fossa volume (PCFV) were increased with age in both sexes. They reached adult dimensions at 5 years of age during the teenage years. According to sex; the mean ICV and PCFV were 1594.51±245.57cm3 and 244.89±53.86 cm3 in males, 1456.34±241.85 cm3 and 228.24±41.38 cm3 in females, respectively. Generally, significant differences were determined in ICV and PCFV according to sex after they reached maximum growth period. According to age the volume ratios of PCF to IC was ranged from 13.03 to 17.48 in males and 12.06 to 18.54 in females. This study demonstrated that these volume ratios could help the physician for both patient selections for surgery, and for the assessment of any surgical technique used to treatment of PCF malformations. However current study revealed that point counting method can produce accurate volume estimations and is effective in determining volume estimation of IC and PCF.

Keywords : Computed tomography; Intracranial cavity; Posterior Cranial Fossa; Stereology; Volume; Tomografía computarizada; Cavidad intracraneal; Fossa craneal posterior; Estereología; Volumen.

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