Utility of catheter-shaping using mixed-reality devices in cerebral aneurysm coil embolization

• Published in: Clinical neurology and neurosurgery 2024-09, Vol.244, p.108412, Article 108412
• Main Authors: Mochizuki, Yuichi, Neki, Hiroaki, Kamio, Yoshinobu, Nakamura, Katsumasa, Kase, Hiroki, Aoki, Toru, Kurozumi, Kazuhiko
• Format: Article
• Language: English
• Subjects: 3-D graphics; 3-D printers; Adult; Aged; Aneurysm; Aneurysms; Augmented reality; Catheter shaping; Catheters; Cerebral aneurysm; Coil embolization; Computer graphics; Embolization; Embolization, Therapeutic - instrumentation; Embolization, Therapeutic - methods; Endovascular coiling; Female; Humans; Intracranial Aneurysm - diagnostic imaging; Intracranial Aneurysm - therapy; Kickbacks; Magnetic Resonance Imaging; Male; Methods; Middle Aged; Mixed reality; Motion capture; Printing, Three-Dimensional; Sterility; Three-dimensional computer graphics; Three-dimensional printer; Visualization
• ISSN: 0303-8467; 1872-6968; 1872-6968
• DOI: 10.1016/j.clineuro.2024.108412

Catheter shaping is vital in cerebral aneurysm coil embolization; however, understanding three-dimensional (3D) vascular structures on two-dimensional screens is challenging. Although 3D-printed vascular models are helpful, they demand time, effort, and sterility. This study explores whether mixed-reality (MR) devices displaying 3D computer graphics (3D-CG) can address these issues. This study focused on magnetic resonance imaging (MRI) of seven cases of cerebral aneurysms. Head-mounted display (HMD) and spatial reality display (SRD) MR devices were used, and applications for 3D-CG display at a 1:1 scale and a 3D-CG control panel were developed. Catheters shaped using a 3D printer, HMD, and SRD were inserted into hollow models to assess their accessibility and positioning. The concordance rate of the 3D printer and HMD groups in terms of accessibility to the aneurysm was 71.4 %, while that of the 3D printer and SRD group was 85.7 %, and that of the HMD and SRD group was 85.7 %. The concordance rates of positioning in the 3D printer and HMD groups, 3D printer and SRD groups, and HMD and SRD groups were 85.7 %, 85.7 %, and 100 %, respectively. MR devices facilitate catheter shaping in cerebral aneurysm coil embolization and offer a time-efficient, precise, and sterile alternative to traditional 3D printing methods. •Understanding the 3D vascular structure is crucial for coil embolization catheter shaping.•Mixed reality devices provide a sterile, simple way to grasp the 3D structure.•Catheter shapes from mixed reality devices closely resemble those from 3D printers.