Stereolithographic models in the interdisciplinary planning of treatment for complex intracranial aneurysms

Andereggen, Lukas; Gralla, Jan; Andres, Robert; Weber, Stefan; Schroth, Gerhard; Beck, Jürgen; Widmer, Hans Rudolf; Reinert, Michael; Raabe, Andreas; Peterhans, Matthias (2016). Stereolithographic models in the interdisciplinary planning of treatment for complex intracranial aneurysms. Acta neurochirurgica, 158(9), pp. 1711-1720. Springer 10.1007/s00701-016-2892-3

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BACKGROUND Treatment of complex intracranial aneurysms requires strategic pre-interventional or preoperative planning. In addition to modern three-dimensional (3D) rotational angiography, computed tomography angiography (CTA) or magnetic resonance angiogram (MRA), a solid, tangible 3D model may improve anatomical comprehension and treatment planning. A 3D rapid prototyping (RP) technique based on multimodal imaging data was evaluated for use in planning of treatment for complex aneurysmal configurations. METHODS Six patients with complex aneurysms were selected for 3D RP based on CTA and 3D rotational angiography data. Images were segmented using image-processing software to create virtual 3D models. Three-dimensional rapid prototyping techniques transformed the imaging data into physical 3D models, which were used and evaluated for interdisciplinary treatment planning. RESULTS In all cases, the model provided a comprehensive 3D representation of relevant anatomical structures and improved understanding of related vessels. Based on the 3D model, primary bypass surgery with subsequent reconstruction of the aneurysm was then considered advantageous in all but one patient after simulation of multiple approaches. CONCLUSIONS Preoperative prediction of intraoperative anatomy using the 3D model was considered helpful for treatment planning. The use of 3D rapid prototyping may enhance understanding of complex configurations in selected large or giant aneurysms, especially those pretreated with clips or coils.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT)
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Image Guided Therapy
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic and Interventional Neuroradiology
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurosurgery
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research

UniBE Contributor:

Andereggen, Lukas; Gralla, Jan; Andres, Robert; Weber, Stefan; Schroth, Gerhard; Beck, Jürgen; Widmer, Hans Rudolf; Reinert, Michael; Raabe, Andreas and Peterhans, Matthias

Subjects:

600 Technology > 610 Medicine & health
500 Science > 570 Life sciences; biology

ISSN:

0001-6268

Publisher:

Springer

Language:

English

Submitter:

Martin Zbinden

Date Deposited:

13 Sep 2016 14:25

Last Modified:

14 Dec 2016 16:49

Publisher DOI:

10.1007/s00701-016-2892-3

PubMed ID:

27416860

Uncontrolled Keywords:

Coil embolization; Combined therapy; Complex aneurysm; Microsurgical clipping; Rapid prototyping; Revascularization bypass

BORIS DOI:

10.7892/boris.87514

URI:

https://boris.unibe.ch/id/eprint/87514

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