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Assessing Cortical Cerebral Microinfarcts on High Resolution MR Images
08:39

Assessing Cortical Cerebral Microinfarcts on High Resolution MR Images

Published on: November 20, 2015

Magnetic resonance imaging of small medullary infarctions

A J Fox, J Bogousslavsky, L S Carey

    AJNR. American Journal of Neuroradiology
    |March 1, 1986
    PubMed

    Insights

    High-field magnetic resonance imaging effectively detects tiny medulla infarctions. This rapid partial-saturation technique aids in diagnosing small strokes in the brainstem, improving clinical recognition.

    Area of Science:

    • Neuroimaging
    • Neurology
    • Radiology

    Background:

    • Small medulla infarctions cause characteristic neurological deficits.
    • Clinical recognition of these small brainstem strokes can be challenging.

    Purpose of the Study:

    • To evaluate the efficacy of high-field magnetic resonance imaging (MRI) in detecting small medulla infarctions.
    • To assess a rapid partial-saturation imaging technique for brainstem lesion visualization.

    Main Methods:

    • Utilized a 1.5 T prototype MRI scanner.
    • Employed a rapid (1-2 min scan time) partial-saturation sequence.
    • Confirmed findings with multiple spin-echo images.

    Main Results:

    • Successfully visualized very small medulla infarctions in 3 out of 5 patients.
    • The rapid partial-saturation technique provided clear imaging of these tiny lesions.
    • T2-weighted spin-echo images suggested vertebral artery occlusion in 2 cases.

    Conclusions:

    • High-field MRI, particularly with rapid partial-saturation techniques, is effective for detecting small medulla infarctions.
    • This imaging approach can aid in the diagnosis of subtle brainstem strokes.
    • MRI may also provide evidence of underlying vascular causes like vertebral occlusion.

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