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Glossary of Terms
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- needle electrode
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- A fine wire through which electrical current may flow in or out when attached to a power source. There are two types of needle electrodes: simple straight needles and a straight, hollow needle that contains several retractable electrodes that extend when needed. A needle electrode is used to carry high frequency electrical currents that create heat to ablate or destroy diseased tissue (called radiofrequency ablation) or seal blood vessels.
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