Three dimensional reconstruction to visualize atrial fibrillation activation patterns on curved atrial geometry

Roderic Mòbil

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Three dimensional reconstruction to visualize atrial fibrillation activation patterns on curved atrial geometry

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dc.contributor.author Abad, Ricardo
dc.contributor.author Collart, Orvil
dc.contributor.author Ganesan, Prasanth
dc.contributor.author Rogers, A. J.
dc.contributor.author Alhusseini, Mahmood I.
dc.contributor.author Rodrigo Bort, Miguel
dc.contributor.author Narayan, Sanjiv M.
dc.contributor.author Rappel, Wouter-Jan
dc.date.accessioned 2022-05-13T13:46:26Z
dc.date.available 2022-05-13T13:46:26Z
dc.date.issued 2021
dc.identifier.uri https://hdl.handle.net/10550/82767
dc.description.abstract Background: The rotational activation created by spiral waves may be a mechanism for atrial fibrillation (AF), yet it is unclear how activation patterns obtained from endocardial baskets are influenced by the 3D geometric curvature of the atrium or 'unfolding' into 2D maps. We develop algorithms that can visualize spiral waves and their tip locations on curved atrial geometries. We use these algorithms to quantify differences in AF maps and spiral tip locations between 3D basket reconstructions, projection onto 3D anatomical shells and unfolded 2D surfaces. Methods: We tested our algorithms in N = 20 patients in whom AF was recorded from 64-pole baskets (Abbott, CA). Phase maps were generated by non-proprietary software to identify the tips of spiral waves, indicated by phase singularities. The number and density of spiral tips were compared in patient-specific 3D shells constructed from the basket, as well as 3D maps from clinical electroanatomic mapping systems and 2D maps. Results: Patients (59.4±12.7 yrs, 60% M) showed 1.7±0.8 phase singularities/patient, in whom ablation terminated AF in 11/20 patients (55%). There was no difference in the location of phase singularities, between 3D curved surfaces and 2D unfolded surfaces, with a median correlation coefficient between phase singularity density maps of 0.985 (0.978-0.990). No significant impact was noted by phase singularities location in more curved regions or relative to the basket location (p>0.1). Conclusions: AF maps and phase singularities mapped by endocardial baskets are qualitatively and quantitatively similar whether calculated by 3D phase maps on patient-specific curved atrial geometries or in 2D. Phase maps on patient-specific geometries may be easier to interpret relative to critical structures for ablation planning.
dc.language.iso eng
dc.relation.ispartof Plos One, 2021, vol. 16(4), num. e0249873
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Abad, Ricardo Collart, Orvil Ganesan, Prasanth Rogers, A. J. Alhusseini, Mahmood I. Rodrigo Bort, Miguel Narayan, Sanjiv M. Rappel, Wouter-Jan 2021 Three dimensional reconstruction to visualize atrial fibrillation activation patterns on curved atrial geometry Plos One 16(4) e0249873
dc.subject Imatges tridimensionals en medicina
dc.title Three dimensional reconstruction to visualize atrial fibrillation activation patterns on curved atrial geometry
dc.type info:eu-repo/semantics/article
dc.date.updated 2022-05-13T13:46:26Z
dc.identifier.doi https://doi.org/10.1371/journal.pone.0249873
dc.identifier.idgrec 152897


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Roderic Mòbil