The application of 3D printing-assisted microcatheter shaping in the embolization of intracranial aneurysms / 介入放射学杂志

ABSTRACT

Objective To discuss the feasibility of using 3D printing-assisted precise microcatheter shaping technology in the embolization of intracranial aneurysms.Methods From November 2015 to April 2016,a total of 13 patients with intracranial aneurysm were treated with interventional embolization therapy.During the performance of the procedure,3D printing-assisted precise microcatheter shaping technology was employed.The accuracy of microcatheter position and the stability of the microcatheter were used to evaluate the shaping effect.Results During the performance of interventional embolization,the microcatheter was precisely placed to the right site in all 13 patients with intracranial aneurysm,the catheter tip position remained stable and the aneurysm was densely obstructed.In ten patients,no complications such as rupture of aneurysm occurred,and postoperative recovery was fine.One patient,whose Hunt-Hess classification was grade V,died after the treatment.One patient developed rupture of aneurysm during the procedure,which was considered to occur probably during the anesthesia induction process.One patient developed bleeding due to re-rupture of the aneurysm before the procedure.Conclusion With the help of 3D printing-assisted precise microcatheter shaping technology,the precisely shaped microcatheter can be smoothly inserted to,and can keep stable in,the right site,which is helpful for successfully accomplishing the operation and effectively reducing the occurrence of procedure-related complications.