What is Thermography?
Thermography, as it relates to chiropractic practice in general, and the Pierce Results System specifically, is the practice of measuring the thermal output of various parts of the body. The earliest practical application of this idea is reputed to have been used by Socrates. It is said that he put wet mud on his patients and looked to where it dried first to detect inflammation of different parts of the body. More recently, early chiropractors used their hands to detect hot areas in the tissues surrounding the spine as part of their system for detecting subluxations.
A critical technological advance came in 1924 when Dossa Evans, a chiropractic patient and electrical engineer, developed a device for directly comparing the temperature of the paraspinal tissues. The Neurocalometer (NCM) measured both sides of the spine simultaneously using thermocouples. Later descendants of this technology remain fundamentally unchanged, although they have been miniaturized to handheld size.
The latest iteration of this technology uses infrared (IR) sensors that do not directly contact the skin. This technology is much more accurate and reliable, making it easier for the chiropractor to accurately assess the patient.
A link to a comprehensive compilation of literature on thermography can be found here, at mccoypress.net.
An advertisement featuring the original Neurocalometer
A modern version of the NCM, the NervoScope