Related Experiment Video
Updated: Jun 11, 2026

Building Affordable, Durable, Medium-Fidelity Ballistic Gel Phantoms for Ultrasound-Guided Nerve Block Training
Published on: February 9, 2024
The polony phantom: a cost-effective aid for teaching emergency ultrasound procedures
Background:
Central venous access and nerve blockade are essential skills in the practice of emergency medicine, and the utility of emergency ultrasound to guide these procedures has been well demonstrated.
Methods:
A phantom is a valuable tool to learn and develop the dexterity for ultrasound-guided techniques.
Results:
To date, the time and cost required to produce or purchase such models has somewhat limited their use.
Conclusion:
A time- and cost-effective alternative using polony and common household items is presented.
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