Influence of magnetic nanoparticles on the focused ultrasound hyperthermia

Kaczmarek, Katarzyna and Hornowski, Tomasz and Dobosz, Bernadeta and Józefczak, Arkadiusz (2018) Influence of magnetic nanoparticles on the focused ultrasound hyperthermia. Materials, 11 (9). pp. 1-15. ISSN 1996-1944 (https://doi.org/10.3390/ma11091607)

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Abstract

Ultrasound hyperthermia is a medical treatment used to increase temperature of tissues. It can be used independently or as a supportive method for an anticancer treatment. The therapeutic efficacy of focused ultrasound hyperthermia can be improved using sonosensitizers, nanoparticles enhancing the attenuation and dissipation of acoustic energy. As sonosensitizers, we propose magnetic nanoparticles owing to their biodegradability, biocompatibility, and simple positioning in tissues using a magnetic field. Focused ultrasound hyperthermia studies were performed using tissue-mimicking phantoms. Temperature changes were measured at various ultrasound powers and distances from the center of the ultrasound focus. Specific absorption rate (SAR) values, describing the power deposition in the tissues during the hyperthermia treatment, were evaluated for the center of the focus point and for various distances from it. The results show that the addition of nanoparticles increases the SAR almost two times compared to that for the pure phantom. The highest SAR is obtained in the ultrasound focus; it decreases with the increase of the distance from the focus

ORCID iDs

Kaczmarek, Katarzyna ORCID logoORCID: https://orcid.org/0000-0002-3193-0070, Hornowski, Tomasz, Dobosz, Bernadeta and Józefczak, Arkadiusz;
  • Item type:Article
    ID code:71804
    Dates:
    Date
    Event
    4 September 2018
    Published
    31 August 2018
    Accepted
    Subjects:Medicine
    Department:Faculty of Engineering > Biomedical Engineering
    Depositing user: Pure Administrator
    Date deposited:19 Mar 2020 11:04
    Last modified:11 Nov 2024 12:37
    URI:https://strathprints.strath.ac.uk/id/eprint/71804
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