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What was the most-requested diagnostic tool at the 1996
Olympic Games in Atlanta?
At the equestrian events, it was infrared thermography! Analysis with this tool
is fast, accurate, portable, and non-invasive. Infrared thermography may be
expensive, but it can easily "scan" the whole animal. If you missed it, check
out Part 1 of this series to learn more about infrared thermography and its
applications for zoo animals.
Equines (Horses)
 Thermal imaging is a valuable tool for detecting previously
undiagnosed lameness in horses. It's particularly helpful in evaluating
expensive animals during pre-purchase examinations. This diagnostic technology
can help reveal non-visible physical problems, such as back trouble or nerve
damage, that could plague a horse for years to come.
There are, of course, factors that can affect the results of
infrared thermography results in equines. These factors include:
- Wind
- Long hair coat vs. short hair coat
(and clipping patterns)
- Mud caked on the body or legs
- Legs that have been wrapped or
have had liniment applied (can cause an increased heat reading)
- Motion (horse must stand still)
Symmetry is also an important consideration. Both sides of
the body or parts of the body (for example, the forelegs) need to be compared
for an accurate analysis. If necessary, other diagnostic tools can be used for
follow-up. Ttreatment of the animal can also begin. Often, it's as simple as
making changes such as how the saddle fits!
Cattle
Infrared thermography is now used in the livestock industry,
particularly with cattle. According to a study from Fachhochschule
Weihenstephan (part of the Munich University of Applied Sciences),
thermographic inspections of cattle are "economically plausible" for
- Body temperature measurement
- Detection of inflammation
- Testicular function
- Udder health
- Bull inspection at market
- Monitoring of animals in quarantine
As with any health issue, catching a problem early with the
least invasive method possible is the best option. Infrared thermography also
helps cut down on the spreading of illness via shared instruments.
Another way infrared technology can help diagnose problems
in cattle is by looking at their hooves. As with any hooved animal, the feet
are the foundation for standing. Chronic lameness problems can cause major losses
of time and money. Although infrared thermography "does not give an exact
diagnosis", it can help pinpoint problem areas by showing higher temperatures (which
may indicate inflammation or disease) for further evaluation.
Thermal imaging may be an expensive technology, but it's not
brand new. Overall, it's no more expensive than other commonly used
diagnostic tools. It is, however, something to consider as part of an
evaluation plan for animal health.
References:
http://en.wikipedia.org/wiki/Thermography
http://www.vet-therm.com/equine-thermography.htm
http://www.thehorse.com/ViewArticle.aspx?ID=490
http://itcnewsletter.com/2008/2008-11_images/Fleckvieh%20story%20_Eng%20UK.pdf
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Re: Infrared Thermography – Non-Invasive Diagnosis Option for Animals (Part 2)
