VNG- Videonystagmography testing is used to determine if a vestibular (inner ear) disease may be causing a balance or dizziness problem. To monitor the movements of the eyes, infrared goggles are placed around the eyes to record eye movements during testing. VNG testing is non-invasive, and only minor discomfort is felt by the patients during testing as a result of wearing goggles.
Diagnosing ADD/ADHD is not quite that simple. Almost everyone feels scattered or unfocused at times. That’s why it is important to see a specialist if you think that you or your child might have ADD/ADHD. After careful examination and testing, physician can determine if the symptoms really point to ADD/ADHD and get you on the path toward proper treatment.
Evoked potential tests (VEP,VER, BAER, SSEP) measures the time it takes for nerves to respond to stimulation. The size of the response is also measured. Nerves from different areas of the body may be tested. Each type of response is recorded from brain waves by using electrodes taped to the head.
For a clear diagnosis of MULTIPLE SCLEROSIS, the doctor has to find evidence that multiple parts of the central nervous system are affected. When there are symptoms clearly caused by MS lesions of the spine but no visual symptoms, the visual response may be tested anyway. Abnormal results in such cases mean that there are also areas of damage (MS lesions) on the brain.
An Electromyogram (EMG) measures the electrical activity of muscles at rest and during contraction. Nerve Conduction Studies ( NCS) measure how well and how fast the nerves can send electrical signals. Nerves control the muscles in the body with electrical signals called impulses. These impulses make the muscles react in specific ways. Nerve and muscle problems cause the muscles to react in abnormal ways. If you have leg pain or numbness, you may have these tests to find out how much your nerves are being affected. These tests check how well your spinal cord, nerve roots, and nerves and muscles that control your legs are working.
An EMG is done to:
Find diseases that damage muscle tissue, nerves, or the junctions between nerve and muscle. These problems may include a herniated disc, amyotrophic lateral sclerosis (ALS), or myasthenia gravis (MG).
Find the cause of weakness, paralysis, or muscle twitching. Problems in a muscle, the nerves supplying a muscle, the spinal cord, or the area of the brain that controls a muscle can cause these symptoms. The EMG does not show brain or spinal cord diseases.
A Nerve Conduction Study is done to:
Find damage to the peripheral nervous system, which includes all the nerves that lead away from the brain and spinal cord and the smaller nerves that branch out from those nerves. This test is often used to help find nerve problems such as carpal tunnel syndrome or Guillain-Barré syndrome.
Electroencephalogram (EEG) is a test that measures and records the electrical activity of your brain.
Electroencephalogram (EEG) may be done to:
Diagnose epilepsy and see what type of seizures are occurring.
Check for problems with loss of consciousness or dementia.
Help find out a person’s chance of recovery after a change in consciousness.
Study sleep disorders, such as narcolepsy.
Help find out if a person has a physical problem (problems in the brain, spinal cord, or nervous system) or a mental health problem.
Non-invasisve Doppler studies essential for evaluation of vascular insufficiency, plaques, stenosis, collateral blood flow, thrombosis and other problems in the lower and upper extremities. Carotid duplex ultrasound is a non-invasive and safe technique for detection and evaluation plaques, stenosis, collateral blood flow and other problems in the carotid arteries. Transcranial Color Doppler Imaging (TCDI)is a test that evaluates the velocity, resistance and direction of blood flow through the brain’s blood vessels. TCDI is used to help in the diagnosis of stenosis, vasospasm, emboli, collateral blood flow, atherosclerotic changes, malformations and other cerebrovascular problems. The prevention of stroke is the main goal of cerebrovascular evaluation.
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