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Wearable Mechatronic Ultrasound-integrated AR Navigation System for Lumbar Puncture Guidance
Baichuan Jiang1, Liam Wang1, Keshuai Xu1
1Department of Computer Science, Johns Hopkins University, Baltimore, MD 21218, USA.
IEEE Transactions on Medical Robotics and Bionics
|May 23, 2024
Summary
This study introduces an augmented reality system for guiding lumbar punctures, improving accuracy and reducing needle insertion attempts. The wearable ultrasound device and AR interfaces enhance this common spinal procedure.
Area of Science:
- Medical Devices
- Image-guided Interventions
- Augmented Reality in Medicine
Background:
- Lumbar punctures are common but often rely on manual palpation, leading to potential failures and complications.
- Effective needle insertion guidance is crucial to improve lumbar puncture success rates and patient safety.
Purpose of the Study:
- To develop and evaluate a complete lumbar puncture guidance system.
- To assess the accuracy and usability of augmented reality interfaces for needle guidance.
Main Methods:
- Integration of a wearable mechatronic ultrasound device with volume-reconstruction and bone surface estimation algorithms.
- Development of two augmented reality user interfaces: HoloLens-based and tablet-based.
- Quantitative evaluation of end-to-end navigation accuracy and a preliminary user study on lumbar phantoms.
Main Results:
- The system achieved an overall needle navigation accuracy of 2.83 mm (tablet) and 2.76 mm (HoloLens).
- Users successfully reached the target in an average of 1.12 (tablet) and 1.14 (HoloLens) needle insertion attempts.
- The system demonstrated effectiveness and good ergonomics in a preliminary user study.
Conclusions:
- The proposed lumbar puncture guidance system shows potential to significantly reduce failure rates.
- Augmented reality-based needle guidance can enhance the precision and efficiency of lumbar puncture procedures.
- This integrated system offers a promising advancement for clinical practice in spinal interventions.
