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Adaptivni laserski medicinski sistem za terapijo površinskih tkiv
ID Košir, Jure (Author), ID Jezeršek, Matija (Mentor) More about this mentor... This link opens in a new window

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Abstract
Neinvazivne terapije površinskih tkiv vključujejo laserske sisteme v kombinaciji s sistemi za hlajenje kože. Učinkovitost tovrstnih terapij je odvisna od globinskega temperaturnega profila v tkivu. Obstoječe merilne metode so bodisi invazivne, ali pa jih ni možno sklopiti z laserskim medicinskim sistemom tako, da bi bilo možno sprotno merjenje. Razvita metoda temelji na sklopitvi brezkontaktne metode termografije in matematičnega modela obravnavanega fizikalnega problema, ki zajema prenos toplote v bioloških tkivih. Razviti algoritem globinsko temperaturno polje oceni na osnovi merjenja časovnega spreminjanja temperature na površini tkiva in iskanja najboljšega približka, ki je bil izračunan z matematičnim modelom. Predstavljen je protokol za oceno tkivnih parametrov in simulacije segrevanja tkiva. Raziskave vključujejo ex-vivo in in-vivo izvedbo hipertermične laserske lipolize in kažejo povprečno odstopanje ocenjenega temperaturnega vrha, ki je manjše od ±1 °C in ±1 mm. Razvito programsko opremo smo integrirali z novo razvitim nadzornim modulom, ki vključuje več senzorskih elementov.

Language:Slovenian
Keywords:laserska terapija, nadzor procesa, termografija, temperatura v podkožju, neinvazivno, tkivo
Work type:Doctoral dissertation
Typology:2.08 - Doctoral Dissertation
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[J. Košir]
Year:2022
Number of pages:XXVI, 146 str.
PID:20.500.12556/RUL-143244 This link opens in a new window
UDC:536.5:615.849.7:004.942(043.3)
COBISS.SI-ID:136146179 This link opens in a new window
Publication date in RUL:09.12.2022
Views:1319
Downloads:102
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Secondary language

Language:English
Title:Self-adaptive medical laser system for surface tissue therapy
Abstract:
Non–invasive tissue therapies often employ laser systems in combination with skin cooling methods. The efficacy of a treatment outcome is dependent on the depth temperature profile within the tissue. Currently, monitoring methods are either invasive or cannot be integrated with a laser medical system such that would support real-time monitoring. Developed non-contact method combines thermography and mathematical model that is based on heat transfer in biological tissues. Algorithm based on best matching process and bio-heat model estimates depth temperature profile based on thermographic recording of the surface temperature evolution. We present the protocol for tissue parameter estimation protocol, which allows for simulations of tissue heating. Research included ex-vivo and in-vivo performed hyperthermic laser lipolysis and showed a peak temperature estimation with an average error smaller than ±1 °C and ±1 mm. Developed methods were integrated with a newly developed multi–sensor supervision module.

Keywords:laser therapy, process supervision, thermography, subsurface temperature, non–invasive, tissue

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