Here is a collection of images so you can see samples of
what will turn up with digital infrared thermal imaging:
Flash (put pointer on
images to see captions)
or (same pictures) gallery
All measurements made show that nerve root problems can
be detected thermographically, although some vascular
diseases can mask it.
-Thermography In Nerve Root
Because the blood flow (and therefore the heat emitted
from) the skin is controlled by the nervous system, digital
infrared thermal imaging provides an ideal way to find the
cause and extent of neurological problems, including pain
syndromes and numbness.