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Updated: May 26, 2025

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Robotic navigation-assisted percutaneous liver puncture: a pilot study.

Milan Sigdel1, Yi Fang1, Zhanguo Sun1

  • 1Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.

Quantitative Imaging in Medicine and Surgery
|February 25, 2025
PubMed
Summary

Robotic navigation-assisted puncture (RNAP) offers improved precision for liver tumor treatments. This study found RNAP significantly reduces puncture time, CT scans, and radiation dose compared to manual methods.

Keywords:
Percutaneous punctureliver tumorsminimally invasive therapyrobotic navigation

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Area of Science:

  • Interventional Radiology
  • Medical Robotics
  • Oncology

Background:

  • Liver cancer often presents at advanced, unresectable stages, necessitating minimally invasive treatments like ablation.
  • Accurate needle placement is critical for the success of minimally invasive liver tumor procedures.
  • Manual puncture techniques have limitations including steep learning curves, frequent adjustments, and increased radiation exposure.

Purpose of the Study:

  • To evaluate the safety and efficacy of robotic navigation-assisted puncture (RNAP) for liver tumors.
  • To compare RNAP with traditional manual puncture (MP) in terms of key procedural metrics.

Main Methods:

  • A comparative study involving 65 patients with liver tumors undergoing percutaneous puncture (ablation, iodine-125 implantation, biopsy).
  • Patients were divided into two groups: RNAP (n=29) and MP (n=36).
  • Key outcomes measured included technical success, clinical success, puncture score, CT scans, total procedure time, puncture time, irradiation dose, and complications.

Main Results:

  • RNAP demonstrated significantly lower puncture scores (P=0.01), shorter puncture times (P=0.01), fewer CT scans (P=0.01), and reduced irradiation doses (P=0.01) compared to MP.
  • Technical success (100% vs. 100%) and clinical success (91.5% vs. 91.4%) rates were comparable between the two groups (P>0.99 and P=0.81, respectively).
  • Total procedure time and complication rates showed no significant differences between RNAP and MP groups.

Conclusions:

  • Robotic navigation-assisted puncture is an effective tool for liver tumor procedures.
  • RNAP significantly reduces procedure time, imaging frequency, and radiation exposure.
  • RNAP offers comparable safety and efficacy to manual puncture while improving efficiency and reducing patient radiation dose.