Microwave Catheter Navigation System for the Radiofrequency Liver Ablation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F22%3A00361164" target="_blank" >RIV/68407700:21460/22:00361164 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/cancers14215296" target="_blank" >https://doi.org/10.3390/cancers14215296</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/cancers14215296" target="_blank" >10.3390/cancers14215296</a>

Result language

angličtina

Original language name

Microwave Catheter Navigation System for the Radiofrequency Liver Ablation

Original language description

Simple Summary Hepatocellular carcinoma (HCC) is the fifth most common malignancy. Thermal ablation is one of the options for the treatment of HCC. Thermal ablation uses interstitial catheters to treat liver tumors. Catheter navigation is essential for the safety of the treatment. This work explores the possibility of tracking the catheter position during ablation treatment of HCCs using an ultra-wideband (UWB) antenna array and microwave radar imaging based on the "Delay and Sum" (DAS) algorithm. The system can track the catheter path with an accuracy of 3.88 +/- 0.19 mm for simulated data and 6.13 +/- 0.66 mm for experimental data. Thermal ablation is a well-known method used in interventional radiology to treat cancer. The treatment success is closely related to the exact catheter location in the treated area. Current navigation methods are based mostly on ultrasound or computed tomography. This work explores the possibility of tracking the catheter position during ablation treatment of hepatocellular carcinomas (HCC) using an ultra-wideband (UWB) antenna array and microwave radar imaging based on the "Delay and Sum" (DAS) algorithm. The feasibility was first numerically studied on a simple homogeneous liver model. A heterogeneous anthropomorphic 3D model of the treated region consisting of the main organs within the treated area was then used. Various standard radiofrequency ablation (RFA) catheters were placed virtually in the heterogeneous model. The location and orientation of the antenna elements of the developed imaging system and the applied frequency band were studied. Subsequently, an experimental setup consisting of a 3D printed homogeneous anthropomorphic model, eight UWB dipole antennas, and catheters was created and used in a series of measurements. The average accuracy determining the catheter position from simulated and experimental data was 3.88 +/- 0.19 and 6.13 +/- 0.66 mm, which are close to the accuracy of clinical navigation systems.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20601 - Medical engineering

Project

<a href="/en/project/GA21-00579S" target="_blank" >GA21-00579S: Multiphysical Study of Superposition of Electromagnetic Waves in Human Head Model to Verify the Feasibility of Microwave Hyperthermia of Brain Tumors</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

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

Name of the periodical

Cancers

ISSN

2072-6694

e-ISSN

2072-6694

Volume of the periodical

14

Issue of the periodical within the volume

21

Country of publishing house

CH - SWITZERLAND

Number of pages

20

Pages from-to

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UT code for WoS article

000883853800001

EID of the result in the Scopus database

2-s2.0-85141854308