nervenleitgeschwindigkeit

Nerve Conduction Velocity (NCV)

In an NLG, elec­tro­des and elec­tri­cal sti­mu­li are used to mea­su­re the con­duc­tion speed of the ner­ves. In addi­ti­on to the gene­ral con­duc­ti­vi­ty, the speed and the exis­tence of blocka­ges are also che­cked.

What does ner­ve con­duc­tion velo­ci­ty (NCV) mean?

When mea­su­ring ner­ve con­duc­tion velo­ci­ty, motor ner­ves (respon­si­ble for body move­ment) and sen­so­ry ner­ves (respon­si­ble for con­duc­ting sen­sa­ti­on) on the arms and legs are sti­mu­la­ted with elec­tri­ci­ty. In sen­si­ti­ve ner­ve con­duc­tion velo­ci­ty mea­su­re­ment, elec­tri­cal sti­mu­li are appli­ed to the ner­ve, pas­sed on by it and mea­su­red again via the ner­ve at ano­ther loca­ti­on. NLG can be used, for exam­p­le, to loca­li­ze pres­su­re dama­ge to ner­ves or poly­neu­ro­pa­thies (a dise­a­se affec­ting seve­ral ner­ves).

Pro­ce­du­re of the exami­na­ti­on

First, elec­tro­des are atta­ched to the end points of the ner­ves. Your ner­ve is then sti­mu­la­ted with an elec­tri­cal sti­mu­lus and the speed of sti­mu­lus trans­mis­si­on is mea­su­red by a com­pu­ter. Based on the mea­su­re­ment, the trea­ting neu­ro­lo­gist can assess the type and ext­ent of the ner­ve dama­ge.