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A novel index in healthy infants and children - subarachnoid space: ventricle ratio

A Okur1, O Küçük, S Karaçavuş

  • 1Department of Radiology, Bozok University Medical Faculty, Yozgat, Turkey. draylinokur@hotmail.com.

Folia Morphologica
|June 7, 2013
PubMed

Insights

Ultrasonography provides objective measurements for the subarachnoid space (SAS) and ventricular width (VW) in children. The stable subarachnoid space to ventricular width (SAS/VW) ratio can serve as a valuable index in healthy pediatric populations.

Area of Science:

  • Pediatric neuroimaging
  • Cranial ultrasonography
  • Normal pediatric anatomy

Background:

  • Objective measurements of the subarachnoid space (SAS) and ventricular width (VW) are crucial for assessing normal development in infants and children.
  • Establishing a normal range for SAS and VW is essential for early detection of abnormalities.
  • The subarachnoid space to ventricular width (SAS/VW) ratio requires further investigation for its stability and utility.

Purpose of the Study:

  • To establish objective measurements and define a normal range for the subarachnoid space (SAS) and ventricular width (VW) in healthy children using ultrasonography.
  • To determine a stable subarachnoid space to ventricular width (SAS/VW) ratio for pediatric neuroimaging.
  • To evaluate the utility of ultrasonography for serial follow-up of SAS and VW.

Main Methods:

  • A total of 100 healthy children (48 males, 52 females) were studied using transfontanel ultrasonography.
  • Participants were categorized into three age groups: 0-6 months (n=65), 7-12 months (n=24), and >13 months (n=11).
  • Subarachnoid space (SAS), ventricular width (VW), and the SAS/VW ratio were calculated; ethical approval and informed consent were obtained.

Main Results:

  • The mean subarachnoid space (SAS) was 3.1 mm (range: 0.5-6 mm), and the mean ventricular width (VW) was 3.6 mm (range: 1.3-5 mm).
  • The average subarachnoid space to ventricular width (SAS/VW) ratio was 0.9 ± 0.3.
  • No statistically significant differences were observed in SAS, VW, or SAS/VW ratios across the 3-97 percentile group (p > 0.05).

Conclusions:

  • Ultrasonography is a practical, reproducible, and non-invasive method for measuring SAS and VW in healthy children.
  • The subarachnoid space to ventricular width (SAS/VW) ratio demonstrates stability and can be utilized as a clinical index in pediatric neuroimaging.
  • This imaging modality facilitates serial follow-up assessments in pediatric patients.
Abstract

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