Welcome, Latin American medical doctors and pals! Outstanding colleagues from Latin America and neurosurgeons from all around the...

Difference between electroencephalography and electroencephalogram What is an electroencephalogram used for? How is it recorded? What...

SSEP: Somatosensory Evoked Potentials The somatosensory evoked potentials (SSEP) asses the sensory pathway from arms and legs to the...

Many different modalities can be used in the OR. Frequently several modalities, such as SSEP, EMG and MEP (see below) are used together...

Home sleep apnea testing provides a board certified sleep medicine physician with the information he or she needs to diagnose obstructive...

This test measures the electrical activity of the brain over a 1/24/48/72- hour period. The test shows areas of the brain that are not...

Ultrasound imaging, also called ultrasound scanning or sonography, involves exposing part of the body to high-frequency sound waves to...

A nerve conduction study is usually done along with electromyography (EMG). The nerve conduction study stimulates specific nerves and...

When the brain processes or transmits auditory stimuli, it produces sensory responses that are termed Brainstem Auditory Evoked Potential...

Somatosensory evoked potentials evaluate the nerve pathway from the arms and legs through the spinal cord to the brain. Somatosensory...

Includes the recording of multiple channels of free-run and triggered EMG responses during certain procedures where facial nerve may be...

This modality stimulates root specific dermatomes via patch electrodes and recordings are made from scalp electrodes. Dermatomal...

The intraoperative recording of potentials from the cortical surface, as part of an evaluation for epilepsy or tumor surgery, the...

Used during certain vascular procedures to monitor cerebral blood flow. TCD works by insonating specific extracranial and intracranial...

When corticospinal tracts are stimulated, the stimulation descends the spinal cord and motor evoked responses are detectable. In the...

Electromyography measures the electrical impulses of the muscles at rest and when contracted. Electromyography is usually done with nerve...