Cardiac MRI derived epicardial fat maps to assist VT ablation procedures for subjects with implantable devices

Zimmermann J, Rashid S, Hu P, Katouzian A, Navab N, Ennis DB (2015)

Publication Type: Conference contribution

Publication year: 2015

Journal

Proceedings - International Symposium on Biomedical Imaging

Publisher: IEEE Computer Society

Book Volume: 2015-July

Pages Range: 747-750

Conference Proceedings Title: Proceedings - International Symposium on Biomedical Imaging

Event location: Brooklyn, NY, USA

ISBN: 9781479923748

DOI: 10.1109/ISBI.2015.7163980

Abstract

Cardiac electroanatomical mapping (EAM) to locate myocardial scar substrate during ventricular tachycardia (VT) ablation therapy is currently faced with a major limitation. The presence of epicardial fat leads to false-positive low-voltage maps that may interpreted as myocardial scar. Pre-procedural cardiac magnetic resonance (CMR) imaging can produce images of the heart in which both cardiac geometry and epicardial fat are particularly conspicuous. The goal of the present work is to build CMR based geometric models composed of a shell of the cardiac anatomy and epicardial fat. Herein, we first defined a black-blood imaging protocol that is feasible in patients with implanted devices. Then a semi-automated image segmentation method was developed and applied to extract ventricular surface anatomy and epicardial fat maps from which three-dimensional surfaces were built. The results suggest that deriving maps of epicardial fat from MRI data is feasible, accurate when compared to expert observers, and suitable for integration in a clinical catheter-based ablation procedure.

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) University of California Los Angeles (UCLA) US United States (USA) (US)

How to cite

APA:

Zimmermann, J., Rashid, S., Hu, P., Katouzian, A., Navab, N., & Ennis, D.B. (2015). Cardiac MRI derived epicardial fat maps to assist VT ablation procedures for subjects with implantable devices. In Proceedings - International Symposium on Biomedical Imaging (pp. 747-750). Brooklyn, NY, USA: IEEE Computer Society.

MLA:

Zimmermann, Judith, et al. "Cardiac MRI derived epicardial fat maps to assist VT ablation procedures for subjects with implantable devices." Proceedings of the 12th IEEE International Symposium on Biomedical Imaging, ISBI 2015, Brooklyn, NY, USA IEEE Computer Society, 2015. 747-750.

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