EMG Specialist

Michigan Neurology Associates & PC

Neurologists & Pain Management Specialists located in Clinton Township, MI & St. Clair Shores, MI

To diagnose a variety of medical conditions, including nerve damage or muscle disorders, the experienced medical team at Michigan Neurology Associates & PC offers on-site diagnostic electromyography (EMG) technology. At their locations throughout the Metro Detroit area in Clinton Township, St. Clair Shores, and Utica, Michigan, the staff provides comprehensive testing to ensure you get a fast and accurate diagnosis as soon as possible. Find out more about the benefits of EMGs and other diagnostic testing available by calling the office nearest you or booking an online today.

EMG Q & A

What is an EMG?

EMG is routinely performed in conjunction with NCV studies. Both are varieties of Electrodiagnostic medicine.

Electromyography is a diagnostic procedure to evaluate the health of your muscles and the nerve cells that control muscle activity.

The test involves the insertion of a needle with an attached electrode that records the electrical signals in the muscle relative to surface mounted electrodes that attach to your skin. The NVC studies use small brief electrical shocks to determine the speed and integrity of both sensory and motor nerves.

Why do I need an EMG?

Your Michigan Neurology Associates & PC physician may recommend an EMG if you have unexplained symptoms, like pain, weakness, or numbness that affect your muscles or limbs.

An EMG can identify conditions like:

  • Nerve disorders
  • Spinal root disorders from herniated discs
  • Muscle abnormalities
  • Neuromuscular junction disorders like Myasthenia gravis (MG)

An EMG may also be an effective tool for ruling out underlying medical conditions that can cause your symptoms.

What can I expect during an EMG?

Depending on the area being evaluated, you may need to sit or lie down on an exam table. The Michigan Neurology Associates & PC team place a surface ground electrode taped to your body and use an antiseptic solution to clean the area of skin where they will insert the needle.

The EMG needle is acupuncture thin and Teflon coated to limit discomfort. Your physician might ask you to contract and relax your muscle at certain times during the test. The electrode collects data about your muscle activity during the duration of the test, which usually takes 30 minutes.

Other kinds of Electro diagnostic testing include:

Evoked potentials studies: These measure the electrical connectivity of highly myelinated pathways in your brain and spinal cord. These include responses to light, sound, or nerve stimulation. The evoked potentials tests use surface electrodes to detect delays in brain activity and diagnose conditions like tumors, multiple sclerosis (MS), or other disorders of the spinal cord.

The team at Michigan Neurology Associates & PC use three types of evoked potentials testing, including:

  • Visual evoked potential test (VEP): tracks optic nerve activity after the introduction of alternating visual stimuli
  • Brainstem auditory evoked response test (BAER): tracks brain activity after the introduction of sound stimuli
  • Somatosensory evoked potential test (SSEP): tracks nerve activity into and through the spinal cord after electrical peripheral nerve stimulation.

Occasionally a light sedative is needed to obtain a reliable recording. Following evoked potential testing, you can return to your usual activities without any limitations or risks of side effects.

Videonystagmography (VNG) is an objective test of the physiologic integrity of the balance system. It is very useful in identifying if a disorder involving symptoms of vertigo, imbalance, false sense of motion/rocking, or unexplained falls are due to peripheral (inner ear) disease or involve the vestibular nerve and it’s brain stem connections.

Learn more about the utility of EMGs and evoked potentials and objective balance testing by calling Michigan Neurology Associates & PC or booking an appointment online today.