Application of profile 3D printing assisted microcatheter shaping in interventional embolization of intracranial aneurysms

Abstract

Objective To investigate the application and effect of profile 3D printing assisted microcatheter shaping in interventional embolization of intracranial aneurysms. Methods Sixty cases of unruptured posterior communicating carotid artery aneurysms showed by head and neck CTA in the Department of Neurosurgery, Affiliated Zhongshan Hospital of Dalian University from May 2015 to May 2019 were selected. The patients were divided into experimental group and control group by random lottery, with 30 cases in each group. The experimental group used profile 3D printing technology to assist preoperative shaping microcatheter embolization for intracranial aneurysms treating, while the control group used traditional interventional embolization for intracranial aneurysms treating. Preoperative preparation time, intraoperative operation time, length of stay and mRs scores of the 2 groups were compared to evaluate the prognosis of the patients. Results The preoperative microcatheter in the experimental group achieved accurate shaping, the interventional embolization process was smooth, and the prognosis was good, the preoperative preparation time was (1.837±0.404) h, the intraoperative operation time was (30.700±2.680) min, the length of stay was (6.970±1.450) d, and the mRs score was 1[0, 2]. While the control group of 30 cases, 2 embolisms failed, for their microcatheter was not in place; 1 case of embolization lasted more than 60 min, because of lung infection; 1 case of patients characterized by a large number of pleural effusion in the right lung was performed closed drainage, which caused more than 30 hospitalization days, preoperative preparation time was (2.323±0.261) min, intraoperative operating time was (49.530±4.297) min, hospitalization days was (9.500±4.049) d. The mRs score was 2[0, 5]. There were statistically significant differences in preoperative preparation time, intraoperative operation time, length of stay and mRs scores between the two groups (P<0.05). Conclusion The application of profile 3D printing technology to assist the application of preoperative shaping microcatheter in the interventional embolization treatment of intracranial aneurysms is not only convenient for accurate shaping, but also can reduce the incidence of postoperative complications of patients and promote the reform of neurosurgery teaching mode. Key words: 3D printing technology; Microcatheter shaping; Intracranial aneurysms; Interventional embolization