Electrodes

MRI conditional elcetrodes are made of what?

Nickel titanium

Epidural electrodes are made of platinum because...

Other metals may become toxic when currents are applied

What is a positively charged electrode?

Anode

What is a negatively charged electrode?

Cathode

What has high current density?

Needle

If electrode stimulation spreads to another electrode, what occurs?

Current shunting

What type of SSEP is scalp position recording most critical?

Lower extremity SSEPs

Subdermal needles places in epidural space should be placed by who?

Surgeon

Non-MRI electrodes for intraoperative MRI cases can cause what?

Thermal burns