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Smartphone- versus smartglasses-based augmented reality (AR) for percutaneous needle interventions: system accuracy
Ming Li1, Reza Seifabadi2, Dilara Long2
1Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA. ming.li@nih.gov.
Summary
Smartphone and smartglasses augmented reality (AR) systems offer accurate guidance for percutaneous needle interventions. Both AR devices significantly reduced needle placement errors compared to traditional CT-guided freehand methods.
Area of Science:
- Medical Technology
- Surgical Navigation
- Augmented Reality Applications
Background:
- Percutaneous needle interventions require precise guidance for accurate targeting.
- Traditional methods like CT-guided freehand navigation can be cumbersome and less accurate.
- Augmented reality (AR) offers potential for real-time visualization and improved surgical accuracy.
Purpose of the Study:
- To compare the system accuracy and needle placement performance of smartphone-based and smartglasses-based augmented reality (AR) systems.
- To evaluate the efficacy of AR in guiding percutaneous needle interventions.
Main Methods:
- Developed an AR platform for real-time superimposition of annotated anatomy and needle trajectory.
- Evaluated AR display accuracy (target overlay error, needle overlay angle) on a 3D-printed phantom using iPhone and HoloLens.
- Assessed needle placement error and time using iPhone, HoloLens, and CT-guided freehand methods with three operators.
Main Results:
- Smartphone (iPhone) and smartglasses (HoloLens) AR systems demonstrated comparable target overlay and needle overlay accuracy.
- iPhone-guided needle placements showed significantly reduced error (p=0.05) but increased time compared to HoloLens.
- Both AR systems significantly reduced needle placement error compared to CT-guided freehand (p < 0.001).
Conclusions:
- Augmented reality platforms on smartphones and smartglasses provide accurate display and navigation for percutaneous needle interventions.
- AR technology holds promise for enhancing precision and reducing errors in minimally invasive procedures.
