Overall Objectives
Scientific Foundations
Application Domains
New Results
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Section: New Results

Towards Interactive Planning of Coil Embolization in Brain Aneurysms

Participants : Jérémie Dequidt, Christian Duriez, Erwan Kerrien, Stéphane Cotin.

Many vascular pathologies can now be treated in a mini- mally invasive way thanks to interventional radiology. Instead of open surgery, it allows to reach the lesion of the arteries with therapeutic de- vices through a catheter. As a particular case, intracranial aneurysms are treated by Þlling the localized widening of the artery with a set of coils to prevent a rupture due to the weakened arterial wall. Consider- ing the location of the lesion, close to the brain, and its very small size, the procedure requires a combination of planning and excellent techni- cal skills. An interactive and reliable simulation, adapted to the patient anatomy, would be an interesting tool for helping the interventional neu- roradiologist plan and rehearse a coil embolization procedure. This work describes an original method to perform interactive simulations of coil embolization. The simulation relies on an accurate reconstruction of the aneurysm anatomy and a real-time model of the coil for which sliding and friction contacts are taken into account. Simulation results are validated against real embolization procedure using clinical metrics and exhibit good adequacy. A paper was published at MICCAI conference on this subject this year [16]

Figure 2. Examples of our simulation results: (left) real coil embolization (right) our simulated coil embolization with 3D coils.


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