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Numerical simulation of a method to reduce high cranial pressure in high intensity focused ultrasound for transcranial brain therapy
ID：97 View Protection：ATTENDEE Updated Time：2021-11-08 15:58:52 Hits：1718 Oral Presentation

Start Time：2021-11-14 20:50（Asia/Shanghai）

Duration：25min

Session：PS1 Plenary Session 1 » CT1Workshop on CT

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Abstract
      Transcranial high intensity focused ultrasound (HIFU) may form hot spots with higher acoustic pressure and temperature in the skull, causing damage to the skull and surrounding tissues. This paper optimized the existing cranial high pressure reduction technology with phase regulation based on the time reversal method and proposed the high cranial pressure reduction algorithm based on particle swarm optimization (PSO-SHPRA), which is an algorithm of adding amplitude modulation to excitation signal and using particle swarm optimization (PSO) to optimize the amplitude modulation coefficients in an iterative manner. To verify the effectiveness of the algorithm, we used the Westervelt nonlinear acoustic propagation equation to carry out numericals based on a transcranial ultrasound therapy model. The results show that reducing the high cranial pressure is feasible when focusing the ultrasound on the intracranial target area. This paper could provide references for clinical therapeutic planning during the HIFU transcranial ultrasound therapy.
Keywords
HIFU,transcranial,time reversal,reduce high cranial pressure,PSO
Speaker
Jiaqi Wang
University of Science and Technology of China

Department of Electronic Engineering and Information
University of Science and Technology of China

Submission Author
Jiaqi Wang University of Science and Technology of China
Jinxu Tao University of Science and Technology of China
Xinyu Guo University of Science and Technology of China
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Important Date

  • Conference Date

    Nov 13

    2021

    to

    Nov 14

    2021

  • Sep 30 2021

    Contribution Submission Deadline

  • Nov 14 2021

    Registration deadline

Sponsored By
Medical Physics Branch of Chinese Society of Biomedical Engineering
IEEE Beijing Section
Life Electronics Society of Chinese Institute of Electronics
Organized By
Anhui Biomedical Engineering Society.
University of Science and Technology of China
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