On the Evaluation of the Hyperthermic Efficiency of Magnetic Scaffolds

<italic>Goal:</italic> Deep-seated tumors (DST) can be treated using thermoseeds exposed to a radiofrequency magnetic field for performing local interstitial hyperthermia treatment (HT). Several research efforts were oriented to the manufacturing of novel biocompatible magnetic nanostruc...

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Main Authors: Matteo B. Lodi, Antonios Makridis, Konstantina Kazeli, Theodoros Samaras, Makis Angelakeris, Giuseppe Mazzarella, Alessandro Fanti
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Open Journal of Engineering in Medicine and Biology
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10216329/
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author Matteo B. Lodi
Antonios Makridis
Konstantina Kazeli
Theodoros Samaras
Makis Angelakeris
Giuseppe Mazzarella
Alessandro Fanti
author_facet Matteo B. Lodi
Antonios Makridis
Konstantina Kazeli
Theodoros Samaras
Makis Angelakeris
Giuseppe Mazzarella
Alessandro Fanti
author_sort Matteo B. Lodi
collection DOAJ
description <italic>Goal:</italic> Deep-seated tumors (DST) can be treated using thermoseeds exposed to a radiofrequency magnetic field for performing local interstitial hyperthermia treatment (HT). Several research efforts were oriented to the manufacturing of novel biocompatible magnetic nanostructured thermo-seeds, called magnetic scaffolds (MagS). Several iron-doped bioceramics or magnetic polymers in various formulations are available. However, the crucial evaluation of their heating potential has been carried out with significantly different, lab specific, variable experimental conditions and protocols often ignoring the several error sources and inaccuracies estimation. <italic>Methods:</italic> This work comments and provides a perspective analysis of an experimental protocol for the estimation methodology of the specific absorption rate (SAR) of MagS for DST HT. Numerical multiphysics simultions have been performed to outline the theoretical framework. After the in silico analysis, an experimental case is considered and tested. <italic>Results:</italic> From the simulations, we found that large overestimation in the SAR values can be found, due to the axial misplacement in the radiofrequency coil, while the radial misplacement has a lower impact on the estimated SAR value. <italic>Conclusions:</italic> The averaging of multiple temperature records is needed to reliably and effectively estimate the SAR of MagS for DST HT.
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spelling doaj.art-f6841f7b26764e68a34ade685641c83c2024-03-06T00:01:47ZengIEEEIEEE Open Journal of Engineering in Medicine and Biology2644-12762024-01-015889810.1109/OJEMB.2023.330481210216329On the Evaluation of the Hyperthermic Efficiency of Magnetic ScaffoldsMatteo B. Lodi0https://orcid.org/0000-0002-8314-1575Antonios Makridis1https://orcid.org/0000-0002-7609-1362Konstantina Kazeli2https://orcid.org/0000-0002-7426-3706Theodoros Samaras3https://orcid.org/0000-0003-0170-4520Makis Angelakeris4https://orcid.org/0000-0001-9109-0221Giuseppe Mazzarella5https://orcid.org/0000-0002-1429-9600Alessandro Fanti6https://orcid.org/0000-0002-8314-1575Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, ItalyNanostructure Characterization: Technology and Applications, CIRI-AUTH, Thessaloniki, GreeceNanostructure Characterization: Technology and Applications, CIRI-AUTH, Thessaloniki, GreeceNanostructure Characterization: Technology and Applications, CIRI-AUTH, Thessaloniki, GreeceNanostructure Characterization: Technology and Applications, CIRI-AUTH, Thessaloniki, GreeceDepartment of Electrical and Electronic Engineering, University of Cagliari, Cagliari, ItalyDepartment of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy<italic>Goal:</italic> Deep-seated tumors (DST) can be treated using thermoseeds exposed to a radiofrequency magnetic field for performing local interstitial hyperthermia treatment (HT). Several research efforts were oriented to the manufacturing of novel biocompatible magnetic nanostructured thermo-seeds, called magnetic scaffolds (MagS). Several iron-doped bioceramics or magnetic polymers in various formulations are available. However, the crucial evaluation of their heating potential has been carried out with significantly different, lab specific, variable experimental conditions and protocols often ignoring the several error sources and inaccuracies estimation. <italic>Methods:</italic> This work comments and provides a perspective analysis of an experimental protocol for the estimation methodology of the specific absorption rate (SAR) of MagS for DST HT. Numerical multiphysics simultions have been performed to outline the theoretical framework. After the in silico analysis, an experimental case is considered and tested. <italic>Results:</italic> From the simulations, we found that large overestimation in the SAR values can be found, due to the axial misplacement in the radiofrequency coil, while the radial misplacement has a lower impact on the estimated SAR value. <italic>Conclusions:</italic> The averaging of multiple temperature records is needed to reliably and effectively estimate the SAR of MagS for DST HT.https://ieeexplore.ieee.org/document/10216329/Heating evaluation protocolhyperthermiamagnetic biomaterialsspecific absorption rate
spellingShingle Matteo B. Lodi
Antonios Makridis
Konstantina Kazeli
Theodoros Samaras
Makis Angelakeris
Giuseppe Mazzarella
Alessandro Fanti
On the Evaluation of the Hyperthermic Efficiency of Magnetic Scaffolds
IEEE Open Journal of Engineering in Medicine and Biology
Heating evaluation protocol
hyperthermia
magnetic biomaterials
specific absorption rate
title On the Evaluation of the Hyperthermic Efficiency of Magnetic Scaffolds
title_full On the Evaluation of the Hyperthermic Efficiency of Magnetic Scaffolds
title_fullStr On the Evaluation of the Hyperthermic Efficiency of Magnetic Scaffolds
title_full_unstemmed On the Evaluation of the Hyperthermic Efficiency of Magnetic Scaffolds
title_short On the Evaluation of the Hyperthermic Efficiency of Magnetic Scaffolds
title_sort on the evaluation of the hyperthermic efficiency of magnetic scaffolds
topic Heating evaluation protocol
hyperthermia
magnetic biomaterials
specific absorption rate
url https://ieeexplore.ieee.org/document/10216329/
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