Microwave Catheter Navigation System for the Radiofrequency Liver Ablation

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Microwave Catheter Navigation System for the Radiofrequency Liver Ablation

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Microwave Catheter Navigation System for the Radiofrequency Liver Ablation

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20601 - Medical engineering

Projekt

<a href="/cs/project/GA21-00579S" target="_blank" >GA21-00579S: Multifyzikální studie superpozice elektromagnetických vln v modelu lidské hlavy pro ověření proveditelnosti mikrovlnné hypertermie nádorů mozku</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Cancers

ISSN

2072-6694

e-ISSN

2072-6694

Svazek periodika

14

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

20

Strana od-do

—

Kód UT WoS článku

000883853800001

EID výsledku v databázi Scopus

2-s2.0-85141854308