High-flow-rate arteriovenous malformation model for simulated therapeutic embolization

Area of Science:

• Biomedical Engineering
• Vascular Surgery
• Interventional Radiology

Background:

• Arteriovenous malformations (AVMs) are complex vascular abnormalities requiring effective treatment strategies.
• Developing realistic and accessible laboratory models is crucial for advancing AVM research and therapeutic development.
• Current models may be costly or rely on animal subjects, presenting ethical and practical challenges.

Purpose of the Study:

• To develop an inexpensive and easy-to-construct laboratory model for arteriovenous malformations.
• To demonstrate the feasibility of performing embolization procedures on this novel AVM model.
• To provide an alternative to animal models in AVM research.

Main Methods:

• Construction of a low-cost laboratory model simulating arteriovenous malformations.
• Performance of embolization procedures using collagen particles and cyanoacrylate liquid polymer.
• Guidance of embolization techniques using fluoroscopy.

Main Results:

• Successful development of a functional laboratory model for AVMs.
• Effective embolization of the AVM model was achieved using both collagen particles and cyanoacrylate.
• The model proved to be inexpensive and simple to construct.

Conclusions:

• The developed laboratory model offers a viable, cost-effective, and animal-sparing alternative for studying arteriovenous malformations.
• This model facilitates the practice and refinement of embolization techniques under fluoroscopic guidance.
• It represents a significant step towards reducing reliance on animal testing in vascular malformation research.