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Related Experiment Video

Updated: Nov 22, 2025

Three-Dimensional Ultrasonic Needle Tip Tracking with a Fiber-Optic Ultrasound Receiver

Three-Dimensional Ultrasonic Needle Tip Tracking with a Fiber-Optic Ultrasound Receiver

Published on: August 21, 2018

Novel approaches to needle tracking and visualisation.

G A McLeod^1,2,3

¹Ninewells Hospital, Dundee, UK.

|January 11, 2021

Summary

This summary is machine-generated.

Ultrasound limitations in nerve blocks necessitate new needle tip tracking technologies. Innovations using bio-markers and advanced imaging promise to enhance precision and patient safety in nerve blocks.

Keywords:

needle nerve block simulation technology ultrasonography

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Published on: November 28, 2017

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Last Updated: Nov 22, 2025

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Published on: November 28, 2017

Area of Science:

Medical Devices
Anesthesiology
Biomedical Engineering

Background:

Ultrasound guidance for nerve blocks has limitations in accuracy and reliability.
Precise needle tip placement near, but not within, the nerve epineurium is crucial for safe and effective nerve blocks.
Ultrasound's insufficient resolution and visualization challenges hinder accurate needle tip evaluation.

Purpose of the Study:

To review emerging technologies for improving needle tip localization during nerve blocks.
To highlight innovations addressing the limitations of current ultrasound guidance.

Main Methods:

Exploration of bio-marker technologies utilizing physical tissue properties (pressure, electrical, optical, acoustic, elastic).
Review of novel needle tip tracking systems including optical fibers, electrical impedance, piezo elements, and micro-ultrasound.

Main Results:

Laboratory and phantom studies show promise for various bio-marker technologies.
Early development of micro-ultrasound at the needle tip demonstrates high-resolution imaging of nerve fascicles.
New tip tracker needles with integrated piezo elements offer real-time in-plane and out-of-plane tracking.

Conclusions:

Technological advancements in needle tip tracking are poised to revolutionize nerve block procedures.
These innovations have the potential to significantly improve patient safety and alter clinical practice.