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Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point served as...

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Related Experiment Video

Updated: Jun 21, 2026

Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
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Mixed Reality Biopsy Navigation System Utilizing Markerless Needle Tracking and Imaging Data Superimposition.

Michał Trojak1,2, Maciej Stanuch2, Marcin Kurzyna3

  • 1Department of Measurement and Electronics, AGH University of Krakow, 30-059 Krakow, Poland.

Cancers
|May 25, 2024
PubMed
Summary

This study presents a mixed reality headset system for precise needle navigation during biopsies. The innovative solution significantly reduces punctures and procedure time, improving accuracy and patient outcomes.

Keywords:
augmented realitybiopsycomputer visionimage-guided percutaneous needle biopsymixed realitysurgical navigation

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Area of Science:

  • Medical Imaging
  • Computer Vision
  • Surgical Navigation

Background:

  • Accurate needle placement is critical for biopsy success and complication avoidance.
  • Minimizing invasiveness and improving procedural efficiency are key goals in interventional radiology.

Purpose of the Study:

  • To introduce and evaluate a mixed reality (MR) headset system for precise needle guidance in biopsy procedures.
  • To assess the system's accuracy, efficiency, and usability compared to conventional methods.

Main Methods:

  • Development of a markerless needle tracking system using deep learning and computer vision.
  • Integration of patient imaging data with MR visualization for real-time anatomical guidance.
  • Performance evaluation through needle pose estimation, target distance measurement, material collection efficiency, and procedure time/puncture count comparisons.

Main Results:

  • The system demonstrated accurate needle pose estimation and precise guidance to target locations.
  • Physician-led tests showed a significant reduction in the number of punctures required.
  • Successful completion on the first attempt increased from 20% to 70%, with a 53% decrease in procedure time.

Conclusions:

  • The proposed mixed reality navigation system enhances precision and efficiency in biopsy procedures.
  • This technology offers a promising solution for improving interventional radiology workflows and patient safety.
  • The system's ability to reduce procedure time and punctures validates its clinical utility.