ArticleSensors (Basel, Switzerland)2020
Exploiting Tissue Dielectric Properties to Shape Microwave Thermal Ablation Zones.
Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- In vivo percutaneous microwave ablation with ECO system in swine kidney and liver: comparison of ablation-zone size to manufacturer predictions and assessment of new antenna design.Research in diagnostic and interventional imaging · 2025Article
- Impact of Power and Time in Hepatic Microwave Ablation: Effect of Different Energy Delivery Schemes.Sensors (Basel, Switzerland) · 2024Article
- Numerical study of the induction of intratumoral apoptosis under microwave ablation by changing slot length of microwave coaxial antenna.Medical & biological engineering & computing · 2024Article
- Histology-Validated Dielectric Characterisation of Lung Carcinoma Tissue for Microwave Thermal Ablation Applications.Cancers · 2023Article
- MWA Performed at 5.8 GHz through 'Side Firing' Approach: An Exploratory Study.Sensors (Basel, Switzerland) · 2022Article
- Computational Modeling of Microwave Tumor Ablation.Bioengineering (Basel, Switzerland) · 2022Review
- Microwave Ablation of Liver, Kidney and Lung Lesions: One-Month Response and Manufacturer's Charts' Reliability in Clinical Practice.Sensors (Basel, Switzerland) · 2022Article
- Image-based computer modeling assessment of microwave ablation for treatment of adrenal tumors.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2022Article
- Thermal ablation in adrenal disorders: a discussion of the technology, the clinical evidence and the future.Current opinion in endocrinology, diabetes, and obesity · 2021Review
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Authors and funding
4 authors.
Funding
Abstract
The dielectric characterization of tissue targets of microwave thermal ablation (MTA) have improved the efficacy and pre-procedural planning of treatment. In some clinical scenarios, the tissue target lies at the interface with an external layer of fat. The aim of this work is to investigate the influence of the dielectric contrast between fat and target tissue on the shape and size of the ablation zone. A 2.45 GHz monopole antenna is placed parallel to an interface modelled by fat and a tissue characterized by higher dielectric properties and powered at 30 and 60 W for 60 s. The performances of MTA are numerically investigated considering different interface scenarios (i.e., different widths of fat layer, shifts in the antenna alignment) and a homogeneous reference scenario. Experiments (N = 10) are conducted on ex vivo porcine tissue to validate the numerical results. Asymmetric heating patterns are obtained in the interface scenario, the ablation zone in the target tissue is two-fold to ten-fold the size of the zone in the adipose tissue, and up to four times larger than the homogenous scenario. The adipose tissue reflects the electromagnetic energy into the adjacent tissue target, reducing the heating in the opposite direction.
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