Impact of the endocardium in a parameter optimization to solve the inverse problem of electrocardiography
| hal.structure.identifier | IHU-LIRYC | |
| hal.structure.identifier | Université de Bordeaux [UB] | |
| hal.structure.identifier | Centre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB] | |
| dc.contributor.author | RAVON, Gwladys | |
| hal.structure.identifier | Modélisation et calculs pour l'électrophysiologie cardiaque [CARMEN] | |
| hal.structure.identifier | IHU-LIRYC | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | COUDIÈRE, Yves | |
| hal.structure.identifier | IHU-LIRYC | |
| hal.structure.identifier | Modélisation et calculs pour l'électrophysiologie cardiaque [CARMEN] | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | POTSE, Mark | |
| hal.structure.identifier | Centre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB] | |
| hal.structure.identifier | IHU-LIRYC | |
| hal.structure.identifier | Université de Bordeaux [UB] | |
| dc.contributor.author | DUBOIS, Rémi | |
| dc.date.accessioned | 2024-04-04T03:00:50Z | |
| dc.date.available | 2024-04-04T03:00:50Z | |
| dc.date.issued | 2019 | |
| dc.identifier.issn | 1664-042X | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/192848 | |
| dc.description.abstractEn | Electrocardiographic imaging aims at reconstructing cardiac electrical events from electrical signals measured on the body surface. The most common approach relies on the inverse solution of the Laplace equation in the torso to reconstruct epicardial potential maps from body surface potential maps. Here we apply a method based on a parameter identification problem to reconstruct both activation and repolarization times. From an ansatz of action potential, based on the Mitchell-Schaeffer ionic model, we compute body surface potential signals. The inverse problem is reduced to the identification of the parameters of the Mitchell-Schaeffer model. We investigate whether solving the inverse problem with the endocardium improves the results or not. We solved the parameter identification problem on two different meshes: one with only the epicardium, and one with both the epicardium and the endocardium. We compared the results on both the heart (activation and repolarization times) and the torso. The comparison was done on validation data of sinus rhythm and ventricular pacing. We found similar results with both meshes in 6 cases out of 7: the presence of the endocardium slightly improved the activation times. This was the most visible on a sinus beat, leading to the conclusion that inclusion of the endocardium would be useful in situations where endo-epicardial gradients in activation or repolarization times play an important role. | |
| dc.description.sponsorship | L'Institut de Rythmologie et modélisation Cardiaque - ANR-10-IAHU-0004 | |
| dc.language.iso | en | |
| dc.publisher | Frontiers | |
| dc.subject.en | Parameter optimization | |
| dc.subject.en | Endocardium | |
| dc.subject.en | ECGI | |
| dc.subject.en | Gradient descent method | |
| dc.subject.en | Mitchell-Schaeffer | |
| dc.subject.en | Endoepicardial gradients | |
| dc.title.en | Impact of the endocardium in a parameter optimization to solve the inverse problem of electrocardiography | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.3389/fphys.2018.01946 | |
| dc.subject.hal | Mathématiques [math]/Optimisation et contrôle [math.OC] | |
| dc.subject.hal | Sciences du Vivant [q-bio]/Ingénierie biomédicale/Imagerie | |
| bordeaux.journal | Frontiers in Physiology | |
| bordeaux.page | 1946 | |
| bordeaux.volume | 9 | |
| bordeaux.hal.laboratories | Institut de Mathématiques de Bordeaux (IMB) - UMR 5251 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01966574 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01966574v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Physiology&rft.date=2019&rft.volume=9&rft.spage=1946&rft.epage=1946&rft.eissn=1664-042X&rft.issn=1664-042X&rft.au=RAVON,%20Gwladys&COUDI%C3%88RE,%20Yves&POTSE,%20Mark&DUBOIS,%20R%C3%A9mi&rft.genre=article |
Files in this item
| Files | Size | Format | View |
|---|---|---|---|
|
There are no files associated with this item. |
|||