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Proceedings Paper

First steps towards initial registration for electrophysiology procedures
Author(s): Alexander Brost; Felix Bourier; Liron Yatziv; Martin Koch; Joachim Hornegger; Norbert Strobel; Klaus Kurzidim
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Paper Abstract

Atrial fibrillation is the most common heart arrhythmia and a leading cause of stroke. The treatment option of choice is radio-frequency catheter ablation, which is performed in electrophysiology labs using C-Arm X-ray systems for navigation and guidance. The goal is to electrically isolate the pulmonary vein-left atrial junction thereby rendering myocardial fibers responsible for induction and maintenance of AF inactive. The use of overlay images for fluoroscopic guidance may improve the quality of the ablation procedure, and can reduce procedure time. Overlay images, acquired using CT, MRI, or C-arm CT, can add soft-tissue information, otherwise not visible under X-ray. MRI can be used to image a wide variety of anatomical details without ionizing radiation. In this paper, we present a method to register a 3-D MRI volume to 2-D biplane X-ray images using the coronary sinus. Current approaches require registration of the overlay images to the fluoroscopic images to be performed after the trans-septal puncture, when contast agent can be administered. We present a new approach for registration to align overlay images before the trans-septal puncture. To this end, we manually extract the coronary sinus from pre-operative MRI and register it to a multi-electorde catheter placed in the coronary sinus.

Paper Details

Date Published: 1 March 2011
PDF: 8 pages
Proc. SPIE 7964, Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling, 79641P (1 March 2011); doi: 10.1117/12.877654
Show Author Affiliations
Alexander Brost, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Felix Bourier, Klinik für Herzrhythmusstörungen, Krankenhaus Barmherzige Brüder (Germany)
Liron Yatziv, Siemens Corporate Research (United States)
Martin Koch, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Joachim Hornegger, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Norbert Strobel, Siemens AG (Germany)
Klaus Kurzidim, Klinik für Herzrhythmusstörungen, Krankenhaus Barmherzige Brüder (Germany)

Published in SPIE Proceedings Vol. 7964:
Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling
Kenneth H. Wong; David R. Holmes, Editor(s)

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