ws4k@ I forgot to mention that it's important to know about whether you can get an MRI with a device you get. With Nevro and leads and electrodes up the spine (as opposed to paddle leads, not sure about them) I could get an MRI of my hip. I just met with my rep, sat close to her and her computer and she read the impedance on all 16. They all were within proper function. When I went to the Imaging/MRI center, I was required to turn the stimulator off (via remote control) before entering the imaging area. After that, it was an MRI, as usual, and no ill-effects or harm to the stimulator or leads/electrodes.