Estimation of global ventricular activation sequences by noninvasive three-dimensional electrical imaging: validation studies in a Swine model during pacing

Journal of Cardiovascular Electrophysiology
Chenguang LiuB He

Abstract

A novel noninvasive imaging technique, the heart-model-based three-dimensional cardiac electrical imaging (3DCEI) approach was previously developed and validated to estimate the initiation site (IS) of cardiac activity and the activation sequence (AS) from body surface potential maps (BSPMs) in a rabbit model. The aim of the present study was to validate the 3DCEI in an intact large mammalian model (swine) during acute ventricular pacing. The heart-torso geometries were constructed from preoperative magnetic resonance (MR) images acquired from each animal. Body surface potential mapping and intracavitary noncontact mapping (NCM) were performed simultaneously during pacing from both right ventricular (RV) (intramural) and left ventricular (LV) sites (endocardial). Subsequent 3DCEI analyses were performed from the measured BSPMs. The estimated ISs were compared with the precise pacing locations and estimated ASs were compared with those recorded by the NCM system. In total, five RV and five LV sites from control and heart failure (HF) animals were paced and sequences of 100 paced beats were analyzed (10 for each site). The averaged localization error (LE) of the RV and LV sites were 7.3 +/- 1.8 mm (n = 50) and 7.0 +/- 2.2 mm (n =...Continue Reading

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Citations

Jan 27, 2009·Journal of Electrocardiology·Nina HakacovaRonald H Selvester
Sep 24, 2013·IEEE Transactions on Bio-medical Engineering·Adityo PrakosaNicholas Ayache
Dec 30, 2010·IEEE Transactions on Bio-medical Engineering·Chenguang LiuBin He
Aug 19, 2010·IEEE Transactions on Bio-medical Engineering·Chenguang Liu, Bin He
Jun 3, 2010·IEEE Transactions on Information Technology in Biomedicine : a Publication of the IEEE Engineering in Medicine and Biology Society·Dakun LaiBin He
May 9, 2015·IEEE Transactions on Medical Imaging·Long YuBin He
Aug 12, 2014·Progress in Biophysics and Molecular Biology·Christopher T VillongcoAndrew D McCulloch
Mar 19, 2015·Cardiac Electrophysiology Clinics·Laura BearRémi Dubois
Mar 28, 2019·Frontiers in Physiology·Danila PotyagayloDmitry Lebedev

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