Microcatheter Shaping for Intracranial Aneurysm Coiling Using the 3-Dimensional Printing Rapid Prototyping Technology: Preliminary Result in the First 10 Consecutive Cases

World Neurosurgery
Katsunari NambaEiju Watanabe

Abstract

An optimal microcatheter is necessary for successful coiling of an intracranial aneurysm. The optimal shape may be predetermined before the endovascular surgery via the use of a 3-dimensional (3D) printing rapid prototyping technology. We report a preliminary series of intracranial aneurysms treated with a microcatheter shape determined by the patient's anatomy and configuration of the aneurysm, which was fabricated with a 3D printer aneurysm model. A solid aneurysm model was fabricated with a 3D printer based on the data acquired from the 3D rotational angiogram. A hollow aneurysm model with an identical vessel and aneurysm lumen to the actual anatomy was constructed with use of the solid model as a mold. With use of the solid model, a microcatheter shaping mandrel was formed to identically line the 3D curvature of the parent vessel and the long axis of the aneurysm. With use of the mandrel, a test microcatheter was shaped and validated for the accuracy with the hollow model. All the planning processes were undertaken at least 1 day before treatment. The preshaped mandrel was then applied in the endovascular procedure. Ten consecutive intracranial aneurysms were coiled with the pre-planned shape of the microcatheter and evalua...Continue Reading

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Citations

Feb 20, 2016·Der Urologe. Ausg. A·F NensaA Wetter
Aug 16, 2016·Computers in Biology and Medicine·Toshihiro IshibashiYuichi Murayama
Sep 20, 2018·Artificial Organs·Farhad AzimifarFarhad Izadi
Oct 18, 2018·Journal of Neurointerventional Surgery·Marie Teresa NawkaAndreas Maximilian Frölich
Sep 30, 2019·Journal of Neurointerventional Surgery·Y XuB Dong
Feb 25, 2017·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Farhad AzimifarFarhad Tabatabai Ghomshe
Aug 12, 2017·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Elizabeth GeorgeDimitrios Mitsouras
Feb 9, 2017·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Shinya YamaguchiKoichiro Matsukado
Feb 26, 2019·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Katsunari NambaKensuke Kawai
Nov 15, 2018·International Journal of Computer Assisted Radiology and Surgery·Divaldo CamaraAnthony Costa
Mar 20, 2021·The Indian Journal of Radiology & Imaging·Ali Burak BinbogaCetin Murat Altay
Feb 4, 2021·Journal of Cerebrovascular and Endovascular Neurosurgery·Tae Gon Kim

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