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Frequently Asked Questions

How is MRI used to diagnose radiation-induced plexopathy?

MRI is also the technique of choice to distinguish between radiation-induced nerve damage and tumor recurrence; the features of radiation-induced plexopathy are described in this article. Anatomy The brachial plexus is formed by the anterior rami of the cervical nerves C5 – C8 and T1.

How is the patient positioned for a lumbosacral plexus MRI?

Positioning for lumbosacral plexus MRI. Position the patient in supine position with head pointing towards the magnet (head first supine) Position the patient over the spine coil and place the body coils over the pelvis and abdomen (nipple down to three inches below symphysis pubis)...

What is idiopathic lumbosacral plexopathy?

Idiopathic lumbosacral plexopathy is characterized by an abrupt onset of sensory disturbances, weakness, and loss of deep tendon reflexes of lower extremities, the serial MRI alterations of which have rarely been reported. 1

Does the brachial plexus show up on MRI?

For imaging, the brachial plexus is a technically and anatomically challenging region of the peripheral nervous system. MRI has a central role in the identification and accurate characterization of malignant lesions arising here, as also in defining their extent and the status of the adjacent structures.

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