Simulation Model of Arteriovenous Malformation Embolization Using Onyx

Fuga Ayabe; Kazutaka Sumita; Shoko Fujii; Kyohei Fujita; Kazunori Miki; Yuki Aizawa; Jun Karakama; Taketoshi Maehara; Shigeru Nemoto

doi:10.5797/jnet.tn.2020-0141

TECHNICAL NOTES

Simulation Model of Arteriovenous Malformation Embolization Using Onyx

Fuga Ayabe, Kazutaka Sumita, Shoko Fujii, Kyohei Fujita, Kazunori Miki, Yuki Aizawa, Jun Karakama, Taketoshi Maehara, Shigeru Nemoto

Author information

Fuga Ayabe
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
Department of Functional Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
Kazutaka Sumita
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
Shoko Fujii
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
Kyohei Fujita
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
Department of Neurology and Neurological Science, Tokyo Medical and Dental University, Tokyo, Japan
Kazunori Miki
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
Yuki Aizawa
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
Department of Functional Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
Jun Karakama
Department of Functional Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
Taketoshi Maehara
Department of Functional Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
Shigeru Nemoto
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan

Keywords: arteriovenous malformation, Onyx, simulation model

JOURNAL OPEN ACCESS

2021 Volume 15 Issue 11 Pages 741-746

DOI https://doi.org/10.5797/jnet.tn.2020-0141

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Abstract

Objective: Although Onyx has made effective embolization possible in the endovascular treatment of arteriovenous malformation (AVM), its infusion requires a high level of skill and experience. The purpose of this study is to create a simulation model that will help to solve this technical issue.

Model Presentation: Using data of 3D DSA images of a clinical case, an acrylonitrile–butadiene–styrene (ABS) resin model of the AVM was created with a 3D printer. Then, a hollow elastic model was created by applying silicone and eluting the ABS resin, which was finally connected to the human vascular model. Simulation of angiography and Onyx embolization using the model showed similar angiographic features and flow dynamics of contrast media and Onyx. During Onyx embolization, the plug and push technique could be performed as in a clinical case.

Conclusion: 3D AVM model created with 3D printer enabled us to stimulate Onyx embolization of AVM.

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