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Integrated Needle Guide on Smartphone for Percutaneous Interventions Using Augmented Reality.

Laetitia Saccenti1,2, Nicole Varble1,3, Tabea Borde1

  • 1Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD, 20892, USA.

Cardiovascular and Interventional Radiology
|April 28, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a smartphone augmented reality (AR) application with a needle guide for accurate percutaneous interventions. The AR tool significantly improved needle placement accuracy compared to freehand methods.

Keywords:
Augmented realityImage-guided therapyInterventional radiologyPercutaneous procedure

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Area of Science:

  • Medical Imaging and Interventional Radiology
  • Augmented Reality in Medicine
  • Medical Device Development

Background:

  • Percutaneous interventions require precise needle placement.
  • Current guidance methods can be complex and experience-dependent.
  • Novel, accessible guidance technologies are needed.

Purpose of the Study:

  • To describe the workflow of a novel smartphone augmented reality (AR) application with an integrated needle guide.
  • To evaluate the accuracy of this AR application for percutaneous needle placement in a phantom model.

Main Methods:

  • A smartphone cover with an integrated needle guide was 3D-printed.
  • An AR application projected a needle path, integrated with the guide.
  • Needle placement accuracy and timing were compared between AR guidance and freehand approach on an abdominal phantom.

Main Results:

  • The smartphone AR application achieved a median accuracy of 4 mm, significantly better than the 18 mm freehand accuracy (P < 0.001).
  • Planning and puncture times were within 3 minutes using the AR tool.
  • Physician experience level did not impact accuracy or timing with the AR application.

Conclusions:

  • The smartphone AR application with an integrated needle guide enables accurate, real-time needle placement.
  • This technology offers potential for standardizing procedures, reducing experience requirements, and providing low-cost guidance for percutaneous interventions.