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Towards personalized and versatile monitoring of temperature fields within heterogeneous tissues during laser therapies
ID Košir, Jure (Avtor), ID Vella, Daniele (Avtor), ID Lukač, Matjaž (Avtor), ID Jezeršek, Matija (Avtor)

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Izvleček
Advancements in medical laser technology have paved the way for its widespread acceptance in a variety of treatments and procedures. Selectively targeting particular tissue structures with minimally invasive procedures limits the damage to surrounding tissue and allows for reduced post-procedural downtime. In many treatments that are hyperthermia-based, the efficiency depends on the achieved temperature within the targeted tissues. Current approaches for monitoring subdermal temperature distributions are either invasive, complex, or offer inadequate spatial resolution. Numerical studies are often therapy-tailored and source tissue parameters from the literature, lacking versatility and a tissue-specific approach. Here, we show a protocol that estimates the temperature distribution within the tissue based on a thermographic recording of its surface temperature evolution. It couples a time-dependent matching algorithm and thermal-diffusion-based model, while recognizing tissue-specific characteristics yielded by a fast calibration process. The protocol was employed during hyperthermic laser treatment performed ex-vivo on a heterogeneous porcine tissue, and in-vivo on a human subject. In both cases the calibrated thermal parameters correlate with the range of values reported by other studies. The matching algorithm sufficiently reproduced the temperature dynamics of heterogeneous tissue. The estimated temperature distributions within ex-vivo tissue were validated by simultaneous reference measurements, and the ones estimated in-vivo reveal a distribution trend that correlates well with similar studies. The presented method is versatile, supported by the protocol for tissue-specific tailoring, and can readily be implemented for temperature monitoring of various hyperthermia-based procedures by means of recording the surface temperature evolution with a miniature thermal camera implemented within a handheld laser scanner or similar.

Jezik:Angleški jezik
Ključne besede:temperature measurement, laser medical procedures, process monitoring
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2021
Št. strani:Str. 4530-4543
Številčenje:Vol. 12, no. 7, art. 428028
PID:20.500.12556/RUL-128832 Povezava se odpre v novem oknu
UDK:535
ISSN pri članku:2156-7085
DOI:10.1364/BOE.428028 Povezava se odpre v novem oknu
COBISS.SI-ID:72307459 Povezava se odpre v novem oknu
Avtorske pravice:
"© 2021 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved." (Datum opombe: 27. 3. 2023)
Datum objave v RUL:05.08.2021
Število ogledov:808
Število prenosov:163
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Gradivo je del revije

Naslov:Biomedical optics express
Skrajšan naslov:Biomed. opt. express
Založnik:Optica
ISSN:2156-7085
COBISS.SI-ID:24857383 Povezava se odpre v novem oknu

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:merjenje temperature, laserske terapije, nadzor procesa

Projekti

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Ministrstvo za izobraževanje, znanost in šport
Številka projekta:C3330-16-529000
Naslov:GOSTOP

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0392
Naslov:Optodinamika

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:L2-1833
Naslov:Lasersko vzbujena podpovršinska mikrodestrukcija tkiva (LasDes)

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