Infrared thermographic imaging (ITI) is the most sensitive objective imaging currently available for the detection of back disease in horses. It is, however, only a physiological study primarily of vasomotor tone overlying other superficial tissue factors. Interpretation requires extreme care in imaging protocol and in understanding the significance of altered sympathetic nervous tone and the sympathetic distribution. Most discussions on back pain have centered on nociception and inflammatory events. ITI provides information and localization for more significant than diagnosing areas of hot spots. Chronic back pain usually involves vasoconstriction at the affected sites and from ITI studies in man, we have an opportunity to appreciate chronic pain phenomena that involves non-inflammatory events. These occur commonly in horses, but are still seldom recognized and treated.
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"Thermographic imaging (also known as thermography, infrared thermography, and infrared imaging) can be used to measure superficial temperature changes in the body . Compared to other commonly used diagnostic methods, thermographic imaging is a noninvasive and safe method of detecting and visualizing changes in superficial temperature in animals [10–14]. A change in superficial temperature due to changes in peripheral blood flow can be measured feasibly with thermography . "
[Show abstract][Hide abstract] ABSTRACT: A total of 47 racing greyhounds were enrolled in this study on two race days (in July and September, resp.) at a racetrack. Twelve of the dogs participated in the study on both days. Thermographic images were taken before and after each race. From the images, superficial temperature points of selected sites (
tendo calcaneus, musculus gastrocnemius, musculus gracilis,
musculus biceps femoris portio caudalis
) were taken and used to investigate the differences in superficial temperatures before and after the race. The thermographic images were compared between the right and left legs of a dog, between the raced distances, and between the two race days. The theoretical heat capacity of a racing greyhound was calculated. With regard to all distances raced, the superficial temperatures measured from the
were significantly higher after the race than at baseline. No significant differences were found between the left and right legs of a dog after completing any of the distances. Significant difference was found between the two race days. The heat loss mechanisms of racing greyhounds during the race through forced conduction, radiation, evaporation, and panting can be considered adequate when observing the calculated heat capacity of the dogs.
Full-text · Article · Oct 2012 · The Scientific World Journal
"O uso de radiografias, como método isolado é o menos efetivo para o diagnóstico de lombalgia primária, além de envolver equipamentos de alto custo (Martin e Klide, 1999). Enquanto a radiografia reflete alterações anatômicas, mas não necessariamente um problema corrente, a cintilografia reflete alterações no metabolismo ósseo e juntos diminuem o número de falso-positivos (Schweinitz, 1999). Denoix (1999b) considera a ultrassonografia a melhor técnica para avaliação do ligamento supraespinhal e discos intervertebrais lombosacrais. "
"Thermographic imaging The assumption when using thermographic imaging is that pain is going to be associated with an increase in temperature because of an inflammatory response or that there is going to be a decrease in temperature because of chronic changes in autonomic tone or scarring. Thermographic imaging has been useful for the localization of limb pain and has also been useful for analysis of back pain   "
[Show abstract][Hide abstract] ABSTRACT: This chapter begins by providing an overview of current philosophies relevant to equine pain management. Objective and subjective techniques for assessing pain and the limitations of these are then described in depth. The conclusion emphasizes the need for an evidence based approach to managing pain in the horse and sets the stage for subsequent chapters in this edition.
Full-text · Article · May 2002 · Veterinary Clinics of North America Equine Practice