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Related Experiment Videos

Normal values for ventricular size as determined by real time sonographic techniques.

R L Poland, T L Slovis, S Shankaran

    Pediatric Radiology
    |January 1, 1985
    PubMed
    Summary

    This study on infant brain sonography found that key anatomical measurements increase with infant age and size. However, certain ratios remained stable, and the occipital mantle was often unmeasurable, which is significant for detecting ventricular dilation.

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    Area of Science:

    • Neuroimaging
    • Pediatric Neurology
    • Medical Ultrasound

    Background:

    • Real-time sonography via the anterior fontanelle is a common method for assessing infant intracranial anatomy.
    • Establishing normative anatomical measurements is crucial for identifying deviations indicative of disease.

    Purpose of the Study:

    • To establish normative anatomical measurements in healthy infants using real-time sonography.
    • To evaluate the relationship between anatomical measurements and independent variables like post-conception age, weight, and head circumference.
    • To assess the stability of specific anatomical ratios during infant development.

    Main Methods:

    • Seventy-three real-time sonographic scans were performed.
    • Scans were conducted through the anterior fontanelle in 67 infants (28-48 weeks post-conception) with no intracranial disease.

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  • Anatomical measurements and ratios were plotted against post-conception age, weight, and head circumference.

    • Main Results:

    • All anatomical measurements increased with increasing post-conception age, weight, and head circumference.
    • Ratios of transventricular to transcalvarial diameters and occipital to frontal mantle thickness remained stable.
    • The occipital mantle was unmeasurable in 88% of cases due to non-visualization of the lateral ventricles' occipital horns.

    Conclusions:

    • Normative data for infant brain sonography can be established.
    • Stable ratios suggest consistent relative growth patterns.
    • The inability to visualize occipital horns is a significant negative finding, as ventricular dilation begins in this region.