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Updated: Jan 30, 2026
06:24
A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
Published on: May 11, 2020
9.4K
A targeting method for robot-assisted percutaneous needle placement under fluoroscopy guidance
Zhonghao Han1, Keyi Yu2, Lei Hu1
1School of Mechanical Engineering and Automation, Beihang University , Beijing , China.
Computer Assisted Surgery (Abingdon, England)
|January 29, 2019
Summary
This study introduces a precise robotic targeting method for needle placement during minimally invasive procedures. The technique reduces radiation exposure and operation time, demonstrating high accuracy in pre-clinical and clinical tests.
Area of Science:
- Medical Robotics
- Surgical Navigation
- Medical Imaging
Background:
- Minimally invasive procedures are increasingly common, driven by advances in medical robotics and navigation.
- Accurate instrument placement is critical for the success of these procedures.
Purpose of the Study:
- To present a precise and efficient targeting method for robot-assisted percutaneous needle placement.
- To reduce radiation exposure and operation time in C-arm fluoroscopy-guided procedures.
Main Methods:
- Development of a specialized end-effector for simultaneous fluoroscopy calibration and robot-to-image registration.
- Formulations for calculating robot targeting movements and accuracy evaluation using single X-ray images.
Main Results:
- Pre-clinical experiments showed a maximum angle error of 0.94° and a maximum position error of 1.31mm for a target 80mm deep.
- Clinical evaluation in robot-assisted pedicle screw placement confirmed the method's accuracy and reliability.
Conclusions:
- The proposed method enables precise and efficient robot-assisted percutaneous needle placement.
- This technique significantly reduces radiation exposure and operation time compared to conventional methods.
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