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Updated: Apr 18, 2026

Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
Published on: January 27, 2023
Measures of ventricles and evans' index: from neonate to adolescent
Erkan Sarı1, Sebahattin Sarı, Veysel Akgün
1Department of Pediatrics, Gülhane Military Medical Academy, Ankara, Turkey.
Insights
This study provides normative ventricle size data for children aged 0-18 years. These findings aid in the early diagnosis of hydrocephalus and monitoring ventriculostomy outcomes.
Area of Science:
- Pediatric Radiology
- Neuroimaging
- Cranial Anatomy
Background:
- Ventricle size is crucial for diagnosing hydrocephalus and managing ventriculostomy.
- Ventricle dimensions can change significantly during childhood.
- Establishing normative data is essential for accurate clinical assessment.
Purpose of the Study:
- To establish normative data for ventricle diameters in Turkish children aged 0-18 years.
- To provide reference values for clinical use in pediatric neuroimaging.
- To support the early diagnosis and management of conditions like hydrocephalus.
Main Methods:
- Retrospective analysis of 517 cranial MRI scans from children aged 0-18 years.
- Standardized measurement protocols were used by trained radiologists.
- Interobserver variation was assessed and confirmed to be minimal.
Main Results:
- Normative data for third ventricle width and Evans' index were established.
- The third ventricle to basilar artery width ratio was consistently between 1 and 2.
- A decrease in the ventricle volume to cerebral parenchyma ratio with age was observed.
Conclusions:
- The study provides valuable normative ventricle size data for pediatric populations.
- These data can assist clinicians in the early diagnosis of hydrocephalus.
- Findings support the use of these measurements in routine clinical practice for children.
Abstract:
Ventricle sizes are important for the early diagnosis of hydrocephalus or for follow-up after ventriculostomy. Diameters of ventricles may change, especially in childhood. This study aims to provide normative data about ventricle diameters. Among 14,854 cranial MRI performed between 2011 and 2013, 2,755 images of Turkish children aged 0-18 years were obtained. After exclusions, 517 images were left. Four radiologists were trained by a pediatric radiologist. Twenty images were assessed by all radiologists for a pilot study to see that there was no interobserver variation. There were 10-22 children in each age group. The maximum width of the third ventricle was 5.54 ± 1.29 mm in males in age group 1 and 4.98 ± 1.08 mm in females in age group 2. The Evans' index was <0.3 and consistent with the literature. The third ventricle/basilar artery width ratio was found to be >1 and <2 in all age groups and both gender groups. Our study showed the ventricle size data of children in various age groups from newborn to adolescent. The ventricle volume/cerebral parenchyma ratio seems to decrease with age. We think that these data can be applied in clinical practice, especially for the early diagnosis of hydrocephalus.
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