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Related Experiment Videos

Nerves on magnetic resonance imaging.

J D Collins, M L Shaver, P Batra

    Journal of the National Medical Association
    |February 1, 1989
    PubMed
    Summary

    Magnetic resonance imaging (MRI) reveals high signals from nerves in the chest and shoulder. This contrast is due to the nerves

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    Area of Science:

    • Radiology
    • Neuroimaging
    • Anatomy

    Background:

    • Nerves in the chest and shoulder girdle are frequently visualized using magnetic resonance imaging (MRI).
    • Understanding the factors contributing to nerve visibility on MRI is crucial for accurate diagnosis and anatomical study.

    Purpose of the Study:

    • To investigate the reasons behind the distinct contrast observed between nerves and surrounding tissues in MRI scans of the chest and shoulder girdle.
    • To correlate MRI findings with histological and radiographic data.

    Main Methods:

    • A fresh human specimen including the brachial plexus nerves from the left axilla was obtained.
    • Magnetic resonance imaging (MRI) was performed on the specimen.
    • MRI results were compared with X-ray projections and photomicrographs of histological sections.

    Main Results:

    • Nerves demonstrated high signal intensity on MRI.
    • Adjacent tissues exhibited lower signal intensities.
    • The rich vascular supply surrounding the nerves showed low signal intensity on MRI, contributing to the nerve contrast.

    Conclusions:

    • The high signal intensity of nerves on MRI, contrasted with the low signal of their vascular supply, explains their clear visualization.
    • This finding aids in understanding neuroimaging characteristics of the brachial plexus and surrounding structures.

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