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Robotically Assisted CBCT-Guided Needle Insertions: Preliminary Results in a Phantom Model.

Antoine Pfeil1, Roberto Luigi Cazzato2, Laurent Barbé3

  • 1ICube Laboratory, University of Strasbourg, CNRS, INSA Strasbourg, 1, place de l'Hôpital, 67091, Strasbourg Cedex, France. a.pfeil@unistra.fr.

Cardiovascular and Interventional Radiology
|October 12, 2018
PubMed
Summary
This summary is machine-generated.

Robotic-assisted needle insertions showed accuracy similar to manual methods but significantly reduced operator radiation exposure. Further in vivo studies are needed to confirm the system

Keywords:
Cone-beam CTPercutaneousRadiation doseRobotbiopsy

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Area of Science:

  • Medical Robotics
  • Interventional Radiology
  • Image-Guided Procedures

Background:

  • Minimally invasive procedures increasingly rely on precise needle placement.
  • Radiation exposure to healthcare professionals during image-guided interventions is a significant concern.

Purpose of the Study:

  • To compare the accuracy and efficiency of robotic-assisted versus manual needle insertions under cone-beam computed tomography (CBCT) guidance.
  • To evaluate the impact of robotic assistance on operator radiation exposure.

Main Methods:

  • A custom-made phantom was used for robotic and manual needle insertions by two operators inexperienced with the robotic prototype.
  • Accuracy (needle tip to target distance), procedure time, and operator radiation dose were primary and secondary endpoints.
  • Statistical analysis was performed using the Wilcoxon test, with p < 0.05 considered significant.

Main Results:

  • Accuracy was comparable between robotic (2.3 ± 0.9 mm) and manual (2.3 ± 1 mm) insertions (p=0.84).
  • Robotic insertions took significantly longer (683 ± 57 s) than manual insertions (552 ± 40 s) (p=0.0002).
  • Operator radiation exposure was substantially reduced with the robotic system (3.25 to 4.15 times less).

Conclusions:

  • The robotic prototype demonstrated comparable accuracy to manual needle insertion.
  • Robotic assistance significantly reduces operator radiation exposure during CBCT-guided procedures.
  • Further in vivo studies are required to validate the clinical efficacy of this robotic system.