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Problems of Active Dynamic Thermography Measurement Standardization in Medicine

Nowakowski Antoni

Pomiary Automatyka Robotyka

2021

R. 25, nr 3

51--56

Reliability of thermographic diagnostics in medicine is an important practical problem. In the field of static thermography, a great deal of effort has been made to define the conditions for thermographic measurements, which is now the golden standard for such research. In recent years, there are more and more reports on dynamic tests with external stimulation, such as Active Dynamic Thermography, Thermographic Signal Reconstruction or Thermal Tomography. The subject of this report is a discussion of the problems of standardization of dynamic tests, the choice of the method of thermal stimulation and the conditions determining the credibility of such tests in medical diagnostics. Typical methods of thermal stimulation are discussed, problems concerning accuracy and control of resulting distributions of temperature are commented. The best practices to get reliable conditions of measurements are summarized.

Wiarygodność diagnostyki termograficznej w medycynie stanowi ważny problem praktyczny. W zakresie statycznej termografii w podczerwieni włożono sporo wysiłku, by zdefiniować warunki pomiarów termograficznych, co stanowi obecnie złoty standard takich badań. W ostatnich latach pojawia się coraz więcej doniesień dotyczących badań dynamicznych z pobudzeniem zewnętrznym, takich jak ADT, TSR czy tomografia termiczna. Przedmiotem niniejszego doniesienia jest dyskusja problemów standaryzacji badań dynamicznych, wyboru sposobu pobudzenia termicznego i warunków decydujących o wiarygodności takich badań w diagnostyce medycznej.

The thermographic signal reconstruction method: A powerful tool for the enhancement of transient thermographic images

Balageas D. L., Roche J. M., Leroy F. H., Liu W. M., Gorbach A. M.

Biocybernetics and Biomedical Engineering

2015

Vol. 35, no. 1

1--9

Important progress occurred in pulse-stimulated thermography, in particular thanks to the TSR technique, a technique based on the decomposition of thermograms on a logarithmic polynomial basis and the use of the logarithmic derivatives to enhance the detection of defects in structures. Its fields of application begin to broaden to the characterization of transient internal heat sources in experimental mechanics and biomedicine. The TSR technique is presented, in particular the last developments leading to the production of a unique synthetic image. Two recent examples of applications in experimental mechanics and biomedicine, taken from literature, are described: in situ detection of damages in a composite material during mechanical tests and in vivo visualization of subcutaneous functional angioarchitecture in humans.