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Construction of a Multimodal 3D Atlas for a Micrometer-Scale Brain-Computer Interface Based on Mixed Reality.

Hong Zhou1,2, Zi-Neng Yan1,2, Wei-Hang Gao1,2

  • 1Department of Orthopedics Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.

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Summary

Researchers created a 3D multimodal imaging atlas of a rat brain-computer interface (BCI), integrating brain, arterial, and bone tissues with the BCI device for enhanced visualization.

Keywords:
Brain-computer interfaceMixed realityMultimodal imagingThree-dimensional atlas

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Medical Imaging

Background:

  • Brain-computer interfaces (BCIs) require detailed anatomical understanding for optimal function.
  • Existing imaging techniques often lack the multimodal integration needed for complex BCI research.

Purpose of the Study:

  • To develop a novel multimodal imaging atlas of a rat brain-computer interface (BCI).
  • To integrate brain, arterial, bone tissue, and BCI device data into a cohesive 3D model.
  • To utilize mixed reality (MR) for interactive three-dimensional (3D) visualization of the BCI-rat brain system.

Main Methods:

  • Implanted invasive BCIs in Sprague-Dawley rats.
  • Acquired multimodal images (micro-CT, 9.0T MRI) of cranial bone, vasculature, brain tissue, and BCI device.
  • Fused and segmented images using 3D-slicer, reconstructed 3D models, and visualized using HoloLens MR platform.

Main Results:

  • Successfully constructed a multimodal 3D imaging atlas for rats.
  • The atlas incorporates skull, brain tissue, arterial tissue, and the BCI device.
  • Interactive 3D anatomical models were created using MR technology.

Conclusions:

  • The developed 3D atlas offers a stable reference for studying brain structure-function relationships in BCIs.
  • Enhances understanding of BCI operational principles.
  • Represents the first multimodal 3D imaging atlas for a BCI in Sprague-Dawley rats.