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Chinese Journal of Medical Ultrasound (Electronic Edition) ›› 2024, Vol. 21 ›› Issue (09): 884-889. doi: 10.3877/cma.j.issn.1672-6448.2024.09.008

• Basic Science Research • Previous Articles     Next Articles

Ultrasound-guided robot-assisted percutaneous puncture: an experimental study

Jiali Sun1,2, Lin Jin3, Cuiqin Shen2, Qingqing Chen2, Yanping Lin4, Zhaojun Li2,5, Dong Xu1,()   

  1. 1. Zhejiang Chinese Medical University,Hangzhou 310053,China
    2. Department of Ultrasound,Jiading Branch of Shanghai General Hospital,Shanghai Jiaotong University School of Medicine,Shanghai 201803,China
    3. Department of Ultrasound,Guanghua Hospital Affiliated to Shanghai University among Traditional Chinese Medicine,Shanghai 200052,China
    4. School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China
    5. Department of Ultrasound,Shanghai General Hospital,Shanghai Jiaotong University School of Medicine,Shanghai 200080,China
  • Received:2024-01-01 Online:2024-09-09 Published:2024-01-07
  • Contact: Dong Xu

Abstract:

Objective

To assess the accuracy and feasibility of ultrasound-guided robot-assisted percutaneous puncture.

Methods

Two physicians with different years of experience conducted ultrasound-guided puncture experiments on thyroid nodule phantoms using both the puncture robot-assisted system and manual puncture, each for 10 times. The puncture needle positioning error, directional error, and total operation time were recorded. Additionally, the consistency among physicians with different experience levels when using the puncture robot-assisted system for puncture was assessed.

Results

The robot-assisted group demonstrated higher puncture accuracy than the manual group, but with longer operation times. The average needle tip error in the robot-assisted group versus the manual group was (0.62±0.26) mm vs (1.29±0.38) mm, the average needle axis angle error was (1.04±0.63)° vs (2.01±0.86)°, and the average operation time was (26.45±12.44) s vs (20.58±9.86) s;the differences were statistically significant between the two groups ( t=9.187, P<0.001; t=3.409, P=0.003;t=-2.289, P=0.034). Operators with different experiences using the robot-assisted system for puncture showed good consistency in needle tip error and operation time, with intraclass correlation coefficient (95% confidence interval) values of 0.783 (0.126-0.946) and 0.903 (0.610-0.876), respectively (P<0.05).

Conclusion

Compared to manual puncture, the robot-assisted system exhibits higher accuracy and stability in ultrasound-guided thyroid nodule puncture procedures. However, the use of the robot-assisted system increases the operation time.

Key words: Ultrasonography, Ultrasound-guided percutaneous puncture, Surgical robot, Minimally invasive

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