These specialized neurological investigations are extension of
clinical neurological examinations. Being a physiological test, they are
able to detect minor functional abnormalities even in absence of
obvious anatomical lesion on MRI.
Nerve Conduction Study and Electromyography [NCV & EMG]
These studies measure and record electrical activity from the muscles
and nerves. They are most often used to assess symptoms of pain,
numbness, tingling, or weakness.
Part of the study may involve small needles that are inserted into the
muscle. Mild electrical shocks are given to stimulate the nerve. You may
experience some discomfort during the tests, but they generally are not
painful. These tests take less than one hour.