Aggressive brain, back and stroke treatment starts with accurate, healing-edge neurodiagnostics. Advanced Diagnostic Imaging neuro radiologist colleagues make up the team of experts at St. Mary's of Michigan.
Common procedures include:
Evoked Potential (EP)
The EP is a recording of electrical activity from the brain, spinal nerves or sensory receptors in response to specific external stimulation. These tests are helpful in evaluating a number of different neurological problems, including spinal cord injuries, acoustic neuroma and optic neuritis and each type of EP looks at a different neurological pathway.
The three most common types are the brainstem auditory evoked response (BAER), the visual evoked response (VER) and the somatosensory evoked response (SSER).
An EEG records the electrical activity of the brain. These assist physicians in the diagnosis of a variety of neurological problems, from headaches and dizziness to seizure disorders, strokes and degenerative brain disease. The EEG is also used to look for organic causes of psychiatric symptoms and disabilities in children and can assist physicians in determining irreversible brain death.
EMG is a test used to detect and diagnose disorders of muscles, nerves and the spinal cord. It is a sensitive and precise test that can detect pinched nerves or nerve damage due to injury, ruptured disc or other causes.
Nerve Conduction Study (NCS)
The NCS records electrical signals from the nerves and muscles. The test is helpful in diagnosing various nerve disorders such as carpal tunnel and diabetic neuropathy at various sites on the arms, legs or back.
Electroneurodiagnostic Monitoring in the Operating Room
Evoked potentials can provide a means of monitoring the spinal cord, brainstem, optic nerves, and cerebral cortex function during surgeries placing those neural structures at risk. Cranial nerve function can also be monitored with spontaneous electromyographic activity and direct cranial nerve stimulation during surgeries involving the skull base, trigeminal neuralgia and acoustic neuromas.
The main function of intraoperative evoked potentials is to identify new neurologic impairment early enough to allow prompt correction of the cause. Impairment may be caused by such correctable factors as excessive retraction of nervous system structures, circulatory or systemic impairment resulting in ischemia or anoxia, or mechanical stretching of the spinal cord or cortex.
Some of the most commonly performed surgeries utilizing evoked potentials are cervical spine fusions and laminectomies, spinal cord and brain tumors, cerebral aneurysms and thoracolumbar spine stabilizations.
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