Non-contact monitoring of the depth temperature profile for medical laser scanning technologies
| Autor: | Jure Kosir, Matija Jezeršek, Daniele Vella |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
udc:61:543.572.3(045)
termografija Materials science Laser scanning Infrared engineering lcsh:Medicine 01 natural sciences Article law.invention 010309 optics 03 medical and health sciences 0302 clinical medicine Optics Engineering law biomedical engineering 0103 physical sciences Thermal Miniaturization prenos toplote v tkivu lcsh:Science Overheating (electricity) Reproducibility Multidisciplinary business.industry lcsh:R Laser thermography depth temperatur profile heat transfer in biological tissue 030220 oncology & carcinogenesis Thermography lcsh:Q temperaturni profil business Biomedical engineering |
| Zdroj: | Scientific reports, vol. 10, 20242, 2020. Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | Medical treatments such as high-intensity focused ultrasound, hyperthermic laser lipolysis or radiofrequency are employed as a minimally invasive alternatives for targeted tissue therapies. The increased temperature of the tissue triggers various thermal effects and leads to an unavoidable damage. As targeted tissues are generally located below the surface, various approaches are utilized to prevent skin layers from overheating and irreparable thermal damages. These procedures are often accompanied by cooling systems and protective layers accounting for a non-trivial detection of the subsurface temperature peak. Here, we show a temperature peak estimation method based on infrared thermography recording of the surface temperature evolution coupled with a thermal-diffusion-based model and a time-dependent data matching algorithm. The performance of the newly developed method was further showcased by employing hyperthermic laser lipolysis on an ex-vivo porcine fat tissue. Deviations of the estimated peak temperature remained below 1 °C, as validated by simultaneous measurement of depth temperature field within the tissue. Reconstruction of the depth profile shows a good reproducibility of the real temperature distribution with a small deviation of the peak temperature position. A thermal camera in combination with the time-dependent matching bears the scope for non-contact monitoring of the depth temperature profile as fast as 30 s. The latest demand for miniaturization of thermal cameras provides the possibility to embed the model in portable thermal scanners or medical laser technologies for improving safety and efficiency. |
| Databáze: | OpenAIRE |
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