Magnetic Resonance Neurography (MRN)

The MRN is really just an MRI scan more finely tuned to highlight nerves. An MR Neurography imaging study is a type of soft tissue MRI scan.

MR Neurography at this time is indicated in the diagnostic evaluation of any condition thought to be due to nerve compression or impingement, trauma involving peripheral nerves, repetitive strain injuries, and congenital or obstetrical abnormalities. In addition to peripheral nerve conditions such as carpal tunnel syndrome, ulnar nerve compression, thoracic outlet syndrome, and nerve tumors, these studies are also indicated for the evaluation of spine patients with radiculopathy when routine studies fail to demonstrate the cause of the pathology.

The diagnosis and management of disorders involving peripheral nerves traditionally has relied upon information derived from a patient's clinical history, neurological examination, and electrodiagnostic studies, including nerve conduction studies and electromyography (EMG). Electrodiagnostic studies are highly sensitive in detecting nerve conduction abnormalities but may lack specificity and may not show the anatomical detail necessary for precise localization of pathology and treatment planning.

Magnetic resonance neurography (MRN) is a magnetic resonance image (MRI) modified with special software and hardware upgrades. It has been proposed that MRN is capable of generating high-resolution longitudinal and cross-sectional images of major peripheral nerves and associated intraneural and extraneural lesions. Electrodiagnostic tests are physiological tests, while MRN is an anatomical study.

The use of MRN to confirm and localize nerve compressions depends partly on its ability to reliably identify nerves located adjacent to: lymph nodes; adipose collections; blood vessels; ligaments; and other structures of similar shape, size, and location.

Referring physicians and patients in need of this study can contact our center directly.

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