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Related Experiment Videos

B-mode echoencephalography in the normal and high risk infant.

M L Johnson, L A Mack, C M Rumack

    AJR. American Journal of Roentgenology
    |September 1, 1979
    PubMed
    Summary

    High-resolution ultrasound reliably visualizes newborn brain structures, including the ventricular system. This non-invasive imaging offers a cost-effective, rapid alternative to CT scans for monitoring infant brain health.

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    Area of Science:

    • Neonatal imaging
    • Pediatric neurology
    • Medical ultrasonography

    Background:

    • Commercially available high-resolution ultrasound systems enable reliable visualization of neonatal intracranial structures.
    • Previous imaging modalities like computed tomography (CT) involve radiation exposure and higher costs.

    Purpose of the Study:

    • To evaluate the efficacy of B-mode echoencephalography for visualizing the normal and abnormal ventricular system in newborns.
    • To establish normal ventricular size parameters in term and high-risk premature infants.
    • To compare ultrasound imaging with computed tomography for diagnosing intracranial abnormalities.

    Main Methods:

    • 135 B-mode echoencephalograms were performed on 25 normal and 41 high-risk infants.
    • The technique for obtaining scans was described.

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  • Measurements of lateral ventricle width and ratio to hemisphere were recorded.

    • Main Results:

    • Normal lateral ventricle width in term infants is 0.9-1.3 cm (mean 1.1 cm).
    • Normal lateral ventricle to hemisphere ratio is 28% (24%-30%) in term infants and 31% (24%-34%) in high-risk premature infants.
    • Ultrasound reliably demonstrated hydrocephalus and cystic intracranial masses with excellent correlation to CT.

    Conclusions:

    • B-mode echoencephalography is a dependable, non-invasive tool for neonatal brain imaging.
    • Ultrasound offers a faster, cheaper, radiation-free alternative to CT for repeated infant evaluations.
    • Close monitoring of ventricular size and early detection of shunt failure are feasible with ultrasound.