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      Cerebrovascular modelling for the management of aneurysm embolization using an intrasaccular flow diverter made by 3D printing

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      Author(s)
      Keles, Ayse
      Oto, Cagdas
      Algın, Oktay
      Date
      2022-10-15
      Source Title
      Polish Journal of Radiology
      Print ISSN
      1733134X
      Publisher
      Termedia Publishing House Ltd.
      Volume
      87
      Issue
      1
      Pages
      557 - 562
      Language
      English
      Type
      Article
      Item Usage Stats
      11
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      Abstract
      Purpose: Using 3-dimensional (3D) printers, the creation of patient-specific models is possible before and after a therapeutic intervention. There are many articles about replicas for training and simulation of aneurysm clipping. However, no paper has focused on 3D replicas obtained from 3-tesla 3D time of flight (3D-TOF) MR angiography for intrasaccular flow diverter (WEB device) embolization of the cerebral aneurysms. In this paper, we aimed to investigate the feasibility of 3D printing models obtained from 3-tesla 3D-TOF data in the management and training of WEB-assisted embolization procedures. Case presentation: We presented a longitudinal case report with several 3D-TOF MRA prints over time. Three-tesla 3D-TOF data were converted into STL and G-code files using an open-source (3D-Slicer) program. We built patient-specific realistic 3D models of a patient with a middle cerebral artery trifurcation aneurysm, which were able to demonstrate the entire WEB device treatment procedure in the pre-intervention and post-intervention periods. The aneurysmatic segment was well displayed on the STL files and the 3D replicas. They allowed visualization of the aneurysmatic segment and changes within a 6-year follow-up period. We successfully showed the possibility of fast, cheap, and easy production of replicas for demonstration of the aneurysm, the parent vessels, and post-intervention changes in a simple way using an affordable 3D printer. Conclusions: 3D printing is useful for training the endovascular team and the patients, understanding the aneurysm/ parent vessels, and choosing the optimal embolization technique/device. 3D printing will potentially lead to greater interventionalist confidence, decreased radiation dose, and improvements in patient safety. © Pol J Radiol 2022.
      Keywords
      WEB device
      3-dimensional (3D) printed model
      TOF
      Aneurysm
      MRI
      Permalink
      http://hdl.handle.net/11693/111768
      Published Version (Please cite this version)
      https://dx.doi.org/10.5114/pjr.2022.120520
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      • National Magnetic Resonance Research Center (UMRAM) 301
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