Document Detail


Advanced Image Fusion to Overlay Coronary Sinus Anatomy with Real-Time Fluoroscopy to Facilitate Left Ventricular Lead Implantation in CRT.
MedLine Citation:
PMID:  21029135     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Background: Failure rate for left ventricular (LV) lead implantation in cardiac resynchronization therapy (CRT) is up to 12%. The use of segmentation tools, advanced image registration software, and high-fidelity images from computerized tomography (CT) and cardiac magnetic resonance (CMR) of the coronary sinus (CS) can guide LV lead implantation. We evaluated the feasibility of advanced image registration onto live fluoroscopic images to allow successful LV lead placement. Methods: Twelve patients (11 male, 59 ± 16.8 years) undergoing CRT had three-dimensional (3D) whole-heart imaging (six CT, six CMR). Eight patients had at least one previously failed LV lead implant. Using segmentation software, anatomical models of the cardiac chambers, CS, and its branches were overlaid onto the live fluoroscopy using a prototype version of the Philips EP Navigator software to guide lead implantation. Results: We achieved high-fidelity segmentations of cardiac chambers, coronary vein anatomy, and accurate registration between the 3D anatomical models and the live fluoroscopy in all 12 patients confirmed by balloon occlusion angiography. The CS was cannulated successfully in every patient and in 11, an LV lead was implanted successfully. (One patient had no acceptable lead values due to extensive myocardial scar.) Conclusion: Using overlaid 3D segmentations of the CS and cardiac chambers, it is feasible to guide CRT implantation in real time by fusing advanced imaging and fluoroscopy. This enabled successful CRT in a group of patients with previously failed implants. This technology has the potential to facilitate CRT and improve implant success. (PACE 2011; 34:226-234).
Authors:
Simon G Duckett; Matthew R Ginks; Benjamin R Knowles; Yingliang Ma; Anoop Shetty; Julian Bostock; Michael Cooklin; Jas S Gill; Gerry S Carr-White; Reza Razavi; Tobias Schaeffter; Kawal S Rhode; C Aldo Rinaldi
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Publication Detail:
Type:  Journal Article     Date:  2010-10-28
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  34     ISSN:  1540-8159     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-02-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  226-34     Citation Subset:  IM    
Copyright Information:
©2010, The Authors. Journal compilation ©2010 Wiley Periodicals, Inc.
Affiliation:
Division of Imaging Sciences, King's College London, BHF Centre, NIHR Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust, London, UK Department of Cardiology, Guy's and St Thomas' Hospitals, London, UK.
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