Influence of MR thermometry on predicted temperature during regional hyperthermia treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F25%3A00387809" target="_blank" >RIV/68407700:21460/25:00387809 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14311/AP.2025.65.0705" target="_blank" >https://doi.org/10.14311/AP.2025.65.0705</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/AP.2025.65.0705" target="_blank" >10.14311/AP.2025.65.0705</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of MR thermometry on predicted temperature during regional hyperthermia treatment

Popis výsledku v původním jazyce

Hyperthermia treatment involves heating tissues to 40–44 °C in order to enhance the efficacy of radiotherapy and/or chemotherapy. Temperature increase is usually induced by the constructive interference of several electromagnetic waves radiating from external sources and can be monitored using magnetic resonance (MR) thermometry. This study aimed to predict temperature increases from non-invasive MR thermometry electromagnetic exposure during deep regional hyperthermia treatment. A 1.5T MR birdcage coil was tuned to produce a homogeneous B1+ field and simulated together with the Sigma Eye hyperthermia applicator and three available patient models. Results show that electromagnetic exposure during MR measurements increases temperature by 0.027 °C, which is, in the hyperthermia temperature range, insignificant. In addition, our results show that the predicted B1+ field homogeneity was influenced by object size and material properties, especially by the water bolus filling the inner part of the applicator.

Název v anglickém jazyce

Influence of MR thermometry on predicted temperature during regional hyperthermia treatment

Popis výsledku anglicky

Hyperthermia treatment involves heating tissues to 40–44 °C in order to enhance the efficacy of radiotherapy and/or chemotherapy. Temperature increase is usually induced by the constructive interference of several electromagnetic waves radiating from external sources and can be monitored using magnetic resonance (MR) thermometry. This study aimed to predict temperature increases from non-invasive MR thermometry electromagnetic exposure during deep regional hyperthermia treatment. A 1.5T MR birdcage coil was tuned to produce a homogeneous B1+ field and simulated together with the Sigma Eye hyperthermia applicator and three available patient models. Results show that electromagnetic exposure during MR measurements increases temperature by 0.027 °C, which is, in the hyperthermia temperature range, insignificant. In addition, our results show that the predicted B1+ field homogeneity was influenced by object size and material properties, especially by the water bolus filling the inner part of the applicator.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20601 - Medical engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Polytechnica

ISSN

1210-2709

e-ISSN

1805-2363

Svazek periodika

65

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

705-711

Kód UT WoS článku

001666116200009

EID výsledku v databázi Scopus

2-s2.0-105028958711