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Stroke is the third leading cause of death in the United States. Each year, more than 750,000 strokes result in over 150,000 deaths. Approximately 80% of strokes are ischemic, where decreased intracerebral flow results from intravascular thrombosis or embolism. Because treatment is delivered using image guidance, skillful instrument navigation and a thorough understanding of the vascular anatomy are critical in order to avoid irreversible complications. We have developed a real-time high-fidelity interventional neuroradiology simulator for physician training. The system includes novel catheter and guidewire finite element models with real-time collision detection and collision response , interactive fluid dynamics of blood flow, volumetric contrast agent propagation, and high-fidelity synthetic fluoroscopic and angiographic images. Cerebrovascular model derived from a pre-operative CT and CTA datasets and fine-tuned for collision detection and response. The simulator is optimized for real-time performance on an affordable computer platform. 2009 Update: Current efforts are to integrate performance assessment, and augmented guidance in the system as well as, developing a more robust compact tracking device for the simulator.
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