Subject: Can a nerve such as the great sciatic radiate a magnetic field (pulse) ?

I read of a skull cap being used to monitor brainwaves in epileptics in place 
of some traditional invasive sensors. I wondered if the same technology could 
be used to monitor nerve responses from lower leg to brain where a stimulator 
pulse would be applied to the foot and a monitor would look for break of 
transmission due to a nerve pinch. 

Re: Can a nerve such as the great sciatic radiate a magnetic field (pulse) ?