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Experimental evaluation of virtual needle insertion framework with enhanced haptic feedback.

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Virtual Needle Insertion with Enhanced Haptic Feedback for Guidance and Needle-Tissue Interaction Forces.

Mostafa Selim1, Douwe Dresscher1, Momen Abayazid1

  • 1Robotics and Mechatronics Research Group, Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, 7500 AE Enschede, The Netherlands.

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Enhanced haptic feedback significantly improves CT-guided needle insertion by reducing procedure time and the need for radiation exposure. This advanced tactile feedback enhances accuracy and efficiency in interventional radiology.

Keywords:
CT liver biopsyhaptic feedbackliver cancerneedle guidanceneedle insertion simulation

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Area of Science:

  • Medical Simulation
  • Haptic Technology
  • Interventional Radiology

Background:

  • Interventional radiologists use visual feedback from imaging for needle guidance, risking radiation exposure.
  • Current methods lack precise tactile information for deep-tissue structure identification.
  • Non-continuous CT scans increase misplacement risk and tissue trauma.

Purpose of the Study:

  • To investigate the impact of enhanced haptic feedback on CT-guided needle insertion.
  • To compare enhanced haptic feedback with enhanced visual feedback.
  • To test if enhanced haptic feedback reduces procedure time and CT scan requirements.

Main Methods:

  • Developed a virtual simulation environment for 5-DoF needle steering in a liver model.
  • Twelve participants performed needle insertion tasks under various feedback conditions.
  • Measured targeting accuracy, trajectory tracking, CT scan count, and task completion time.

Main Results:

  • Enhanced haptic feedback significantly reduced CT scans by 32.1% and task duration by 46.9% compared to non-enhanced feedback.
  • Enhanced visual feedback also reduced task duration by approximately 30%.
  • Combined enhanced haptic feedback proved most effective in improving efficiency and reducing radiation exposure.

Conclusions:

  • Enhanced haptic feedback, especially in combination with force sensing, offers a promising alternative to reduce radiation exposure and improve efficiency in CT-guided procedures.
  • This technology can enhance interventional radiologists' ability to perceive deep-tissue structures.
  • Further development could lead to safer and more effective minimally invasive interventions.