CRMC NEURODIAGNOSTICS LABORATORY

 

The Neurodiagnostic laboratory at Community Regional Medical Center offers specialized testing in EEG, EMG, nerve conduction studies, SSEP, and TCD.  Neurodiagnostic technicians at Community Medical Center often are complimented by patients for the excellent care they provide as well as the staff’s experience and dedication.  The Neurodiagnostic laboratory offers different types of functional studies of brain, spine and the peripheral nervous system. 

 

Tiny electrical signals that are produced when your brain, spine and peripheral nervous system connect and communicate are recorded.  The information is produced by the actual workings of the system but does not produce a picture or image.  The signals are represented as “waves” or waveforms; and you may have heard people refer to some of the collected data as “brain wave” testing.  The data is interpreted or read by staff neurologists, who dictate a written opinion or repot of its meaning.


Neurodiagnostic Tests

Community Medical Center performs several types of neurodiagnostic testing.

 

Electroencephalograms (EEG) – These are sometimes called “brain wave” recordings and are used to detect abnormalities in the electrical activity of the brain.  EEG is used to help diagnose the presence and type of seizure disorders, to look for causes of confusion, and to evaluate head injuries, tumors, infections, degenerative diseases and metabolic disturbances that affect the brain.  It also is used to evaluate sleep disorders and to investigate periods of unconsciousness. 

 

Evoked Potentials or Evoked Response (SSEP, VER or BAER)

SSEP’s are recordings of the pathways to and from the spinal cord and brain and involve stimulating a specific area such as a spot at the ankle and then recording the signals as they travel to the spinal cord and eventually, to a specific part of the brain.

 

VER is a recording of visual pathway function and involves recording from electrodes at the back of the head while one eye at a time is stimulated with a “moving” checkerboard pattern on a TV screen.

 

BAER is a test of the acoustic nerve (hearing pathways) and is performed by using headphones to provide a click to the ear being tested and a masking noise to the opposite ear.

 

Electrodiagnostics (EMG and NCS) – At Community Medical Center, nerve conduction studies are performed by using small electrodes taped to the skin.  This procedure is generally not painful.  EMG consists of placing small needle electrodes in the muscles to be examined. 

 

The procedure is used for evaluation of problems with nerve and muscle function and is a mildly uncomfortable test.  EMG and nerve conduction studies are ordered together for the purpose of evaluating a peripheral nerve from its exit from the spine to its end, usually within the arms or legs.

 

Transcranial Dopplers (TCD) TCD or Transcranial Doppler, is a non-invasive ultrasound method used to examine the blood circulation within the brain.  During TCD inaudible sound waves are transmitted through the tissues of the skull.  These sound waves reflect off blood cells moving within the blood vessels.  The sound waves are recorded and displayed on a computer screen.  This test will help your doctor determine the amount of blood flow to certain areas of your brain.

 

Epilepsy Services

The Epilepsy Clinic is a comprehensive clinic that encompasses diagnosis, medical and neurosurgical treatment, and management of adults and children with epilepsy.  Treatments for epilepsy include drug therapy, healthy diet and Vagal Nerve stimulator.