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Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

O. Kutter, S. Kettner (=Demirci), E.U. Braun, N. Navab, R. Lange, R. Bauernschmitt
Towards an Integrated Planning and Navigation System for Aortic Stent-Graft Placement
Proc. of Computer Assisted Radiology and Surgery (CARS), Berlin, Germany, June 2007. (bib)

The implantation of an endovascular stent-graft, inside the aorta is a minimally-invasive procedure for the treatment of aortic aneurysms and aortic dissections. In the current clinical workflow there is no technical guidance during the intervention except for X-Ray and ultrasound images from a TEE (transesophageal echocardiography) probe. However, exact placement of the stent-graft is crucial for the success of the procedure, thus there is a need for methods and tools aiding in the implantation of the stent-graft. Our system aims at supporting the surgeons during the intervention by visualizing registered pre-operative CTA images and intra-operative X-Ray images. Thereby a roadmap for the catheter navigation can be displayed and the physician has access to all spatial 3D information necessary for the exact graft placement. By this method, we hope to enhance the accuracy of the surgeon’s actions and reduce the amount of contrast agent.
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