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Model and Simulation of Microwave Ablation with Single Antennas on Irregular Hepatic Cancerous Tissue

  • Yonghua Lao
  • Tianqi Zhang
  • Jinhua Huang
  • R. YangEmail author
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 1072)

Abstract

There is a lot of numerical simulation on microwave ablation which studied the models of the microwave antennas (MA) design and thermal-dielectric properties of tissues. However, few studies focused on the efficient and accurate treatment planning to configure MA in various kinds of irregular tumor, especially irregular hepatic cancerous tissue (IHCT). This work proposed a modelling approach to analyzing the heating performance and thermal lesion of microwave ablation model with different MA inserting directions, inserting depth rates and powers. The specific absorption rate and thermal lesion results showed that the long axis of irregular tissue could be the better MA inserting direction, along which microwave power could be sent to ablate more IHCT. The MA inserting depth rate influenced the power absorption rate and axial thermal lesion of the MA axis under different powers. The temperature field of 60 \(^{\circ }\)C expanded when power gave rise on, which were proposed to predict the thermal lesion zone of IHCT. The results simulated microwave ablation with single MA on IHCT, and thus, the method could also be applied to treatment situations where multiple MAs or more complicated operation are required under image-guided surgical navigation.

Keywords

Irregular hepatic cancerous tissue Microwave ablation Model and simulation Treatment planning 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Yonghua Lao
    • 1
  • Tianqi Zhang
    • 2
  • Jinhua Huang
    • 2
  • R. Yang
    • 1
    • 3
    Email author
  1. 1.Department of Biomedical EngineeringSouth China University of TechnologyGuangzhouChina
  2. 2.Department of Minimally Invasive Interventional Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, and Collaborative Innovation Center for Cancer MedicineSun Yat-sen UniversityGuangzhouChina
  3. 3.Department of Therapeutic Radiology, School of MedicineYale UniversityNew HavenUSA

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