Interstitial Magnetic Thermotherapy Dosimetry Based on Shear Wave Magnetomotive Optical Coherence Elastography
Overview
Authors
Affiliations
While magnetic thermoseeds are often utilized in interstitial magnetic thermotherapy (iMT) to enable localized tumor ablation, we propose to extend their use as the perturbative source in magnetomotive optical coherence elastography (MM-OCE) so that the heat-induced elasticity alterations can be 'theranostically' probed. MM-OCE measurements were found to agree with indentation results. Tissue stiffening was visualized on iMT-treated porcine liver and canine soft tissue sarcoma specimens, where histology confirmed thermal damages. Additionally, the elasticity was found to increase exponentially and linearly with the conventional thermal dosage metrics and the deposited thermal energy, respectively. Collectively, a physiologically-meaningful, MM-OCE-based iMT dosimetry is feasible.
Image-Based Monitoring of Thermal Ablation.
Wang X, Zhao S, Zhang A Bioengineering (Basel). 2025; 12(1).
PMID: 39851352 PMC: 11762831. DOI: 10.3390/bioengineering12010078.
Leartprapun N, Adie S Biomed Opt Express. 2023; 14(1):208-248.
PMID: 36698669 PMC: 9842001. DOI: 10.1364/BOE.468932.
Magnetic particles in motion: magneto-motive imaging and sensing.
Kubelick K, Mehrmohammadi M Theranostics. 2022; 12(4):1783-1799.
PMID: 35198073 PMC: 8825589. DOI: 10.7150/thno.54056.
Wave-based optical coherence elastography: The 10-year perspective.
Zvietcovich F, Larin K Prog Biomed Eng (Bristol). 2022; 4(1).
PMID: 35187403 PMC: 8856668. DOI: 10.1088/2516-1091/ac4512.
Sun P, Won J, Choo-Kang G, Li S, Chen W, Monroy G NPJ Biofilms Microbiomes. 2021; 7(1):48.
PMID: 34078901 PMC: 8172902. DOI: 10.1038/s41522-021-00219-2.