MR Imaging of the brachial plexus

Area of Science:

• Radiology
• Neuroimaging
• Anatomy

Background:

• The brachial plexus is a complex network of nerves vital for upper limb function.
• Accurate imaging is essential for diagnosing various neurological conditions affecting the arm.
• Magnetic Resonance (MR) imaging offers detailed visualization of the brachial plexus anatomy and pathology.

Purpose of the Study:

• To provide a comprehensive overview of MR imaging techniques for evaluating the brachial plexus.
• To discuss relevant brachial plexus anatomy and common pathologies.
• To guide clinicians on imaging protocols, contrast use, and differential diagnoses.

Main Methods:

• Review of MR imaging sequences and planes relevant to brachial plexus assessment.
• Discussion of how clinical information guides imaging parameter selection.
• Exploration of advanced techniques like increased magnet strength and isotropic imaging.

Main Results:

• MR imaging effectively assesses lesion continuity, relationship, orientation, morphology, and secondary features of plexopathies.
• Tailored imaging protocols based on clinical presentation optimize diagnostic yield.
• Advanced imaging techniques show potential for standardized and time-efficient examinations.

Conclusions:

• MR imaging is a key modality for diagnosing brachial plexus abnormalities.
• Understanding relevant anatomy and pathology is critical for accurate interpretation.
• Strategic application of MR imaging, including contrast administration, aids in differential diagnosis and avoids pitfalls.