Electrodes are then placed in various locations on your skin along the nerve pathway. The NCS is often done along with the EMG to determine if a nerve is working normally. During the EMG, thin needles are placed in your muscle to record electrical activity. Magnetic resonance imaging (MRI). Large magnets, radiofrequency energy, and a computer make detailed images of organs and structures in your body.Įlectromyography and nerve conduction study (EMG and NCS). A procedure done together to record and analyze electrical impulses in your muscles. X-ray. Electromagnetic energy beams make images of internal tissues, bones, and organs onto film. Along with a complete medical history and physical exam, tests for sciatica may include:
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