Electrocardiogram Acquisition During Remote Magnetic Catheter Navigation.
Fiche publication
Date publication
janvier 2019
Journal
Annals of biomedical engineering
Auteurs
Membres identifiés du Cancéropôle Est :
Pr FELBLINGER Jacques
Tous les auteurs :
Dos Reis JE, Soullié P, Battaglia A, Petitmangin G, Hoyland P, Josseaume L, de Chillou C, Odille F, Felblinger J
Lien Pubmed
Résumé
Electrocardiogram (ECG) acquisition is required during catheter treatment of cardiac arrhythmias. The remote magnetic navigation technology allows the catheter to be moved automatically inside the heart chambers using large external magnets. Each change of position of the catheter requires fast motion of the magnets, therefore magnetic fluxes are created through the ECG cables, causing large distortions of the ECG signals. In this study a novel ECG sensor is proposed for reducing such distortions. The sensor uses short cables to connect the electrodes to the amplification and optical conversion circuit, using a technology similar to that used for magnetic resonance imaging. The proposed sensor was compared to the conventional 12-lead ECG device during various operation modes of the magnets. Quantitative morphological analysis of the different waves of the ECG was performed in two healthy subjects and on a conductivity phantom reproducing various cardiac pathologies. In healthy subjects the beat-to-beat correlation coefficients were improved with the proposed sensor for the PR interval (80-93% vs. 49-89%), QRS complex (93-96% vs. 74-94%), ST segment + T wave (95-98% vs. 67-99%), and whole PQRST wave (82-97% vs. 55-96%). Similar observations were made with the conductive gel in the whole PQRST wave in the pathological morphologies of the ECG for the VT (99% vs. 56-98%), AT (95% vs. 26-89%), ST (96-97% vs. 20-91%) and ST (96% vs. 28-90%). The new sensor might be used for better (uninterrupted) monitoring of the patient during catheter interventions using remote magnetic navigation. It has the potential to improve the robustness and/or duration of certain clinical procedures such as ventricular tachycardia ablation.
Mots clés
Cardiac electrophysiology, Electrocardiography (ECG), Electromagnetic compatibility, Optical sensor, Remote magnetic navigation (RMN)
Référence
Ann Biomed Eng. 2019 Jan 30;: