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2010
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Model-Based Registration for Motion Compensation during EP Ablation Procedures

11 years 3 months ago
Model-Based Registration for Motion Compensation during EP Ablation Procedures
Radio-frequency catheter ablation (RFCA) has become an accepted treatment option for atrial fibrillation (Afib). RFCA of Afib involves isolation of the pulmonary veins under X-ray guidance. For easier navigation, two-dimensional X-ray imaging may take advantage of overlay images derived from static pre-operative 3-D data set to add anatomical details which, otherwise, would not be visible under X-ray. Unfortunately, respiratory and cardiac motion may impair the utility of static overlay images for catheter navigation. We developed a system for image-based 2-D motion estimation and compensation as a solution to this problem. It is based on 2-D catheter tracking facilitated by modelbased registration of an ellipse-shaped model to fluorosocpic images. A mono-plane or a bi-plane X-ray C-arm system can be used. In the first step of the method, a 2-D model of the catheter device is computed. Respiratory and cardiac motion at the site of ablation is then estimated by tracking the cathete...
Alexander Brost, Rui Liao, Joachim Hornegger, Norb
Added 31 Jan 2011
Updated 31 Jan 2011
Type Journal
Year 2010
Where WBIR
Authors Alexander Brost, Rui Liao, Joachim Hornegger, Norbert Strobel
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