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61. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC) im Rahmen der Neurowoche 2010
Joint Meeting mit der Brasilianischen Gesellschaft für Neurochirurgie am 20. September 2010

Deutsche Gesellschaft für Neurochirurgie (DGNC) e. V.

21. - 25.09.2010, Mannheim

The use of stereolithographic models in the treatment planning for complex intracranial aneurysms

Meeting Abstract

  • Lukas Andereggen - Department of Neurosurgery, University of Bern, Switzerland; Institute of Diagnostic and Interventional Neuroradiology, University of Bern, Switzerland
  • Jan Gralla - Institute of Diagnostic and Interventional Neuroradiology, University of Bern, Switzerland
  • Stefan Weber - ARTORG Center for Biomedical Engineering Research, University of Bern, Switzerland
  • Gerhard Schroth - Institute of Diagnostic and Interventional Neuroradiology, University of Bern, Switzerland
  • Michael Reinert - Department of Neurosurgery, University of Bern, Switzerland
  • Andreas Raabe - Department of Neurosurgery, University of Bern, Switzerland

Deutsche Gesellschaft für Neurochirurgie. 61. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC) im Rahmen der Neurowoche 2010. Mannheim, 21.-25.09.2010. Düsseldorf: German Medical Science GMS Publishing House; 2010. DocP1827

DOI: 10.3205/10dgnc298, URN: urn:nbn:de:0183-10dgnc2981

Veröffentlicht: 16. September 2010

© 2010 Andereggen et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

Text

Objective: We describe the use of stereolithographic models for surgical planning and intraoperative orientation in patients with complex intracranial aneurysm and discuss the role of this method for improving visualization and decision making.

Methods: Stereolithographic models of consecutive five patients were derived from CT, CT-angiography (CT-A) and three-dimensional rotational cerebral angiography (3D-RA) data and were fused together. Based on the information gained from different imaging studies such as CT and CTA on one hand and 3D-RA on the other hand, several different modalities could be analyzed simultaneously such as the shape and extends of the aneurysm, thrombosis, vascular implants of a previous surgery or endovascular intervention as well as the courses of target and donor vessels were defined. The 3D-stereolithographic model integrated these structures within a 3D object.

Results: In five patients with complex aneurysms (4 MCA, 1 PCA), the 3D- remodeling could be adequately achieved using CTA and 3D-RA. In all cases the model fulfilled the requirement of the neurovascular team for optimal 3D assessment of the relevant structures down to an object size of 1 mm and helped to better understand the complex anatomical configuration.

Conclusions: Treatment of giant aneuryms either by endovascular or microsurgical or combined approach remain a complex task. Our series of 3D stereolithographic models demonstrates the feasibility and clinical utility of a new visualization medium for cerebrovascular neurosurgery in giant partially thrombosed aneurysm foreseen for an EC-IC bypass.