New Cutting-Edge Thermography Systems
The standards and guidelines behind clinical thermography equipment and protocols, and why shortcuts like skipping acclimation produce inaccurate results.
From time-to-time we see new thermography systems that make claims to significant superiority to the current imaging systems. What we find is that these systems are usually using methodologies that are untested and/or ignore the laws of thermodynamics. One of the most misleading of these “new” infrared imaging technologies is the claim of being able to look deep into the body. For a more detailed explanation, please see the first topic in the Thermography Myths section below.
Another problem we seeing is the use of imaging equipment in a manner that either introduces thermal artifacts or temperature measurement errors. This alone causes inaccurate data collection and interpretation errors. Another cause of errors comes in the form of unproven software interpretation programs that are used without a board certified thermologist interpreting the images. There is no place in healthcare where a machine provides an interpretation of a medical imaging procedure without a board certified radiologist or thermologist reading the images and signing the report (see previous topic above). Software programs such as ImageChecker (e.g. use in mammography) are used to assist the radiologist, but are not used alone.
The current infrared imaging system standards and interpretation guidelines have been established for over 34 years. These equipment and interpretation standards and guidelines have been continually monitored and updated by experts in this field through major associations worldwide. We are currently using the state-of-the-art in infrared imaging systems and interpretation methodologies. This involves infrared imaging systems that can withstand the scrutiny of the finest engineers in infrared sciences and the interpretation expertise from highly educated board certified thermologists.
The sophistication of an infrared imaging system has nothing to do with human physiology. All patients must undergo 15 minutes of acclimation in an environmentally controlled room.
It doesn’t matter what type of imaging system you have, if you have been driving with your arm out the window and the AC blowing on the other side of your face you cannot be suddenly placed in front of a heat sensing camera to take images. When going from a hot environment to a cool one, and vice versa, the body needs to become attuned to the environment in order to express accurate thermal information. Clothing will also leave marks on the surface of the body (thermal artifacts) that have to be removed before imaging can take place.
You could have the most accurate and sensitive thermometer in the world, drink a hot cup of coffee and stick the thermometer in your mouth. Do you think that you would get an accurate representation of temperature?
Explore the other topics in our thermography FAQ series.
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