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<p>One major challenge in brain electrode implantation surgery such as deep brain stimulation (DBS) surgery is the absence of real-time 3D imaging during the procedure. To overcome this limitation, a DBS surgical localization and automatic navigation system based on gradient descent electric field stereotaxis (GDEFS) was developed, offering real-time 3D visualization and automated navigation to the target. The hardware system injects current into the target area via electrodes integrated into the DBS surgical instrument, generating a simple electric field within the body. Electric potential data collected via an electric field framework are processed to locate the electrode. Simulated surgical navigation experiments demonstrate a localization spatial error of less than 2&#xa0;mm and an angular error of less than 1°. This work demonstrates the practical implementation of electric field stereotaxis, transforming its theoretical basis into a fully functional system for real-time 3D surgical navigation in DBS procedures.</p>

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Surgical localization and automatic electrode implantation system for DBS based on gradient descent electric field stereotaxis

  • 期刊论文

  • 发表日期：

    2025年2月24日

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  • Yuxin Fang,
  • Fan Yang,
  • Wei He,
  • Liang Tan,
  • Zhenyou Liu,
  • Wei Zhang,
  • Xing Li,
  • Pengbo Wang

摘要

One major challenge in brain electrode implantation surgery such as deep brain stimulation (DBS) surgery is the absence of real-time 3D imaging during the procedure. To overcome this limitation, a DBS surgical localization and automatic navigation system based on gradient descent electric field stereotaxis (GDEFS) was developed, offering real-time 3D visualization and automated navigation to the target. The hardware system injects current into the target area via electrodes integrated into the DBS surgical instrument, generating a simple electric field within the body. Electric potential data collected via an electric field framework are processed to locate the electrode. Simulated surgical navigation experiments demonstrate a localization spatial error of less than 2 mm and an angular error of less than 1°. This work demonstrates the practical implementation of electric field stereotaxis, transforming its theoretical basis into a fully functional system for real-time 3D surgical navigation in DBS procedures.