• Evoked Potentials (EP's)

  • EP studies provide a measurement of how long it takes an impulse to travel from a point of stimulation through the spinal cord to the brain. There are three EP assessments that can be taken:

    Visual Evoked Potentials (VEP's) used for neurological assessment of the visual system by generating changes in viewed patterns. Resulting responses correlate closely with features of normal vision such as visual acuity and are consistently reproducible. VEPs aid in the diagnosis of optic neuritis, multiple sclerosis and retrochiasmal and compressive lesions.

    Brainstem Auditory Evoked Potential Studies (BAEPs) - evaluate the nerve pathways from the ear to the brain. The test is used to evaluate stroke, acoustic neuroma, Meniere's disease, multiple sclerosis and the integrity of newborn hearing.

    Somatosensory Evoked Potential Studies (SSEPs) - assess pathways from nerves in the arms or legs, through the spinal cord to the brainstem or cerebral cortex. Electrodes are placed on the scalp and along the spinal cord. A small electrical current is then applied to the skin overlying nerves on the arms or legs, creating a pain-free tingling sensation.  Each leg or arm is tested separately.

    To schedule an appointment, contact the neurodiagnostics lab at 303-269-4670.

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