The NeuroDiagnostic Center
The NDC provides services that help diagnose various conditions and disorders, which requires specialized testing. Through this department we diagnose neurologic disorders of the peripheral nerves and muscles, and the central disorders of epilepsy, seizures, demyelinating disorders, and disorders of the vestibular system. This center provides analysis such that helps direct the physician to provide each patient with the optimum treatments.
Testing includes: nerve conduction tests (NCVs), electromyography (EMGs), electroencephalography (EEGs), evoked potentials (EVPs), autonomic nervous system testing (ANS), wand Videonystagmography (VNG) testing. Please note that we are the only center in the Panhandle* capable of doing more than 24 hours of EEG monitoring for people who have epilepsy and seizure disorders that need to be diagnosed and treated for epilepsy disorders that are undetectable on a routine EEG (a 40 minutes or 1 hour EEG). This allows a better diagnosis and treatment of seizures & epilepsy.
Nerve Conduction Velocity (NVC)/Electromyograghy (EMG)
Our extremity muscles are supplied by several nerves that originate at the spinal cord and terminate in the muscles. These nerves use electricity to communicate with muscles and in turn make them contract and function. The testing is comprised of two parts: Nerve Conduction Velocity Studies (NCVs) and electromyography (EMG)
The NCVs is used to directly study the nerves in the extremities by applying small electric zaps on top of the nerve over the skin area and record from the muscles that are supplied by these nerves. This helps diagnose and localize any damage to the nerves and characterize the extent and type of damage.
The EMG part is used to study muscles. This part is done by inserting a very small needle into the muscle and record muscle activity. It determines if the muscle itself is diseased or if the nerve that supplies is affected.
Both test are interpreted together to give a final diagnosis.
EEG is a test that measures and records brain electrical activity. Special sensors are attached to the scalp and hooked to a special computer. The computer records the brain’s electrical activity on a screen. EEG is used to diagnose many brain disorders especially seizures/epilepsy, encephalopathy, coma, …
Long-Term Video Electroencephalography
Our center has the capability and equipment to do a long-term video EEG up to several days. This allows us to pick up seizure activity that is not picked up on a routine EEG. Our Center is the only place in the Panhandle that is capable of doing so.
Evoked Potentials (EVP)
EVP test measures the time it takes for nerves to respond to stimulation; and the size of the response. Nerves from different areas of the body may be tested. There are several types of EVP that can be done to test different functions. Visual evoked response or potential (VER or VEP), which is done by stimulating eyes by looking at a test pattern and recording from the brain. This is the most commonly used evoked potential test for diagnosis of multiple sclerosis. Auditory brain stem evoked response or potential (ABER or ABEP), which uses hearing as a stimulus by listening to a test tone while recording from the brain. Somatosensory evoked response or potential (SSER or SSEP), which uses stimulus from the nerves of the arms and legs with an electrical pulse while recording from the spinal cord and the brain.
Each type of response is recorded from the brain by using electrodes taped to the scalp. EVP are used to test for certain brain disorders as seen in multiple sclerosis, brain masses or lesions.
The autonomic nervous system is a specialized nerves that play a major role in regulating heart, blood pressure, gastrointestinal function and sweating. Abnormalities in this system may result into dysautonomia, causing various symptoms including dizziness, lightheadedness, fatigue, nausea, palpitation, fluctuation in blood pressure and heart rate, palpitation, bladder dysfunction, abnormal sweating and skin discoloration. During ANS testing a specialized equipment is used to check for these abnormalities, supporting the diagnosis and preparing for treatment.