Paper Info
Title
Real-time motion-adjusted augmented fluoroscopy system for navigation during electrophysiology procedures
Abstract
Electrophysiology (EP) procedures are conducted by cardiac specialists to help diagnose and treat abnormal heart rhythms. Such procedures are conducted under mono-plane and bi-plane x-ray fluoroscopy guidance to allow the specialist to target ablation points within the heart. Ablations lesions are usually set by applying radio-frequency energy to endocardial tissue using catheters placed inside a patient's heart. Recently we have developed a system capable of overlaying information involving the heart and targeted ablation locations from pre-operational image data for additional assistance. Although useful, such information offers only approximate guidance due to heart beat and breathing motion. As a solution to this problem, we propose to make use of a 2D lasso catheter tracking method. We apply it to bi-plane fluoroscopy images to dynamically update fluoro overlays. The dynamic overlays are computed at 3.5 frames per second to offer real-time updates matching the heart motion. During the course of our experiments, we found an average 3-D error of 1.6 mm on average. We present the workflow and features of the motion-adjusted, augmented fluoroscopy system and demonstrate the dramatic improvement in the overlay quality provided by this approach.
Year
DOI
Venue
2012
10.1117/12.912298
Proceedings of SPIE
Keywords
Field
DocType
ablation,electrophysiology,motion compensation,surgical guidance
Computer vision,Motion compensation,Ablation,Fluoroscopy,Breathing,Frame rate,Artificial intelligence,Overlay,Workflow,Electrophysiology,Physics
Conference
Volume
ISSN
Citations 
8316
0277-786X
0
PageRank 
References 
Authors
0.34
0
9
Name
Order
Citations
PageRank
atilla peter kiraly1479.16
julien christian barbot200.34
wen wu311715.85
Terrence Chen441333.69
Alexander Brost515920.28
Martin Koch6648.58
Carolin Jakob7272.89
Tanja Kurzendorfer8147.38
Norbert Strobel913623.42