New model for learning ultrasound-guided needle to target localization

Area of Science:

• Medical Education
• Anesthesiology
• Medical Simulation

Background:

• Acquiring technical skills in regional anesthesia using ultrasound presents challenges for novice learners.
• High costs of ultrasound equipment and commercial training models limit accessibility for skill development.
• Interest is high among residents, fellows, and staff to integrate ultrasound into regional anesthesia practice.

Purpose of the Study:

• To present an inexpensive and accessible model for learning ultrasound-guided needle manipulation.
• To provide a variable complexity training tool for regional anesthesia procedures.

Main Methods:

• Construction of a low-cost training model using readily available materials: extra-firm tofu, wood dowel, and electrical wire.
• The model simulates anatomical structures for practicing needle-to-target localization under ultrasound guidance.

Main Results:

• The model effectively creates hypo- and hyper-echoic targets within the tofu medium.
• Learners can visualize the relationship between the 2D ultrasound image and 3D target planes.
• The model facilitates the development of psychomotor skills for ultrasound-guided procedures.

Conclusions:

• An economical and adaptable model for ultrasound-guided needle localization training has been developed.
• This approach enhances accessibility to essential skills training in regional anesthesia.
• The model offers a practical solution to the financial barriers in medical simulation for ultrasound education.