Volume 16 Supplement 1
O061. Frontal thermography in healthy individuals and headache patients: reliability of the method
© Voiticovschi-Iosob et al. 2015
Published: 28 September 2015
Infrared Thermography detects infrared lights emitted by the body to visualize changes in temperature due to abnormalities in the surface blood flow of affected areas. This method may aid in the diagnostic process in pain medicine.
To assess the reliability of human body temperature measurement by means of Frontal Infrared Thermography (FIT).
The analysis of variance did not show statistically significant difference between the three consecutive measurements during the first session (p = 0.21 right side; p = 0.35 left side) and the second session (p = 0.079 right side; p = 0.074 left side). Considering 0.75 the excellent reliability threshold (Fleiss), the measurements of both sides revealed a good reliability. The ICC values for right and left side were: 0.75 and 0.79 respectively during T1, and 0.72 and 0.74 respectively during T2. The best reliability was found between the second and the third measurement. The statistical test ANOVA 2 way did not reveal intra-individual test-retest variations. A low correlation (r ≤ 0.38) was found between FIT and external factors (room temperature, age and sex of subjects) while no correlation was found between FIT and pain side or VAS score.
FIT can be an effective method for the temperature evaluation in humans. FIT measurements were symmetrical on both sides and were not influenced by room temperature, sex or age of the individuals. The Asymmetry Index was reliable in control subjects to describe the absence of lateralization of FIT and may be used as clinical control limits.
Written informed consent to publication was obtained from the patient(s).
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