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Robot-Assisted CT-Guided Biopsy with an Artificial Intelligence-Based Needle-Path Generator: An Experimental

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A new robotic system with AI significantly reduces computed tomography (CT)-guided biopsy time and improves accuracy. This AI-powered robotic approach offers a promising advancement for minimally invasive procedures.

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Area of Science:

  • Medical Robotics
  • Artificial Intelligence in Medicine
  • Interventional Radiology

Background:

  • Computed tomography (CT)-guided biopsies are crucial for diagnosing various conditions.
  • Conventional freehand techniques can be challenging, potentially affecting accuracy and procedure time.
  • Advancements in robotics and AI offer opportunities to enhance precision and efficiency in medical procedures.

Purpose of the Study:

  • To evaluate the feasibility of an AI-based robotic system for lesion detection and path planning in CT-guided biopsies.
  • To compare the performance of the robotic system against the traditional freehand technique.

Main Methods:

  • An AI-powered robotic system was utilized for lesion detection, trajectory generation, and needle positioning in an abdominal phantom.
  • Interventional radiologists performed robot-assisted and freehand needle insertions targeting simulated nodules.
  • Key metrics including 3D deviation, lateral deviation, depth deviation, and insertion time were quantified and statistically analyzed.

Main Results:

  • The robotic system successfully detected all target lesions and generated accurate needle paths.
  • Robot-assisted insertions demonstrated significantly reduced 3D and depth deviations compared to freehand insertions.
  • Robotic assistance led to a substantial decrease in insertion time, with no significant difference in lateral deviations.

Conclusions:

  • The AI-based robotic system shows potential for improving accuracy in CT-guided biopsies.
  • The robotic system can significantly shorten procedure times, offering a more efficient alternative to freehand techniques.