Thermal imaging could tell if your dog was in pain....it diagnoses referred pain in horses, cats, elephants....I am sure it can help dogs!
Horse Scan
http://www.meditherm.com/assets/Equine.pdf
Elephant scan
http://www.rams-online.com/elephantfoot.html
Technology
http://www.meditherm.com/equine/default.htm
Clinic that offers info and testing certified by ACCT
www.cvdinc.org
ABC Good morning America Promoted Digital Imaging pioneered by Duke University Diane Sawyer on This Mornings Medical Technologies Good Morning America! It can be used on people AND ANIMALS!
ACCT American College of Clinical Thermographers
http://www.thermologyonline.org/