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Rigal L, Benali K, Barré V, Bougault M, Bellec J, Crevoisier RD, Martins R, Simon A. Multimodal fusion workflow for target delineation in cardiac radioablation of ventricular tachycardia. Med Phys 2024; 51:292-305. [PMID: 37455674 DOI: 10.1002/mp.16613] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/12/2023] [Accepted: 06/22/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Cardiac radioablation (CR) is an innovative treatment to ablate cardiac arrythmia sources by radiation therapy. CR target delineation is a challenging task requiring the exploitation of highly different imaging modalities, including cardiac electro-anatomical mapping (EAM). PURPOSE In this work, a data integration process is proposed to alleviate the tediousness of CR target delineation by generating a fused representation of the heart, including all the information of interest resulting from the analysis and registration of electro-anatomical data, PET scan and planning computed tomography (CT) scan. The proposed process was evaluated by cardiologists during delineation trials. METHODS The data processing pipeline was composed of the following steps. The cardiac structures of interest were segmented from cardiac CT scans using a deep learning method. The EAM data was registered to the cardiac CT scan using a point cloud based registration method. The PET scan was registered using rigid image registration. The EAM and PET information, as well as the myocardium thickness, were projected on the surface of the 3D mesh of the left ventricle. The target was identified by delineating a path on this surface that was further projected to the thickness of the myocardium to create the target volume. This process was evaluated by comparison with a standard slice-by-slice delineation with mental EAM registration. Four cardiologists delineated targets for three patients using both methods. The variability of target volumes, and the ease of use of the proposed method, were evaluated. RESULTS All cardiologists reported being more confident and efficient using the proposed method. The inter-clinician variability in delineated target volume was systematically lower with the proposed method (average dice score of 0.62 vs. 0.32 with a classical method). Delineation times were also improved. CONCLUSIONS A data integration process was proposed and evaluated to fuse images of interest for CR target delineation. It effectively reduces the tediousness of CR target delineation, while improving inter-clinician agreement on target volumes. This study is still to be confirmed by including more clinicians and patient data to the experiments.
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Affiliation(s)
- Louis Rigal
- Univ Rennes, CHU Rennes, CLCC Eugène Marquis, Inserm, LTSI - UMR 1099, Rennes, France
| | - Karim Benali
- Univ Rennes, CHU Rennes, CLCC Eugène Marquis, Inserm, LTSI - UMR 1099, Rennes, France
- Department of Cardiology, Saint-Etienne University Hospital, Saint-Priest-En-Jarez, France
| | - Valentin Barré
- Department of Cardiology, Rennes University Hospital, Rennes, France
| | - Mathilde Bougault
- Department of Cardiology, Rennes University Hospital, Rennes, France
| | - Julien Bellec
- Department of Cardiology, Rennes University Hospital, Rennes, France
- Medical Physics Department, CLCC Eugène Marquis, Rennes, France
| | - Renaud De Crevoisier
- Univ Rennes, CHU Rennes, CLCC Eugène Marquis, Inserm, LTSI - UMR 1099, Rennes, France
| | - Raphaël Martins
- Univ Rennes, CHU Rennes, CLCC Eugène Marquis, Inserm, LTSI - UMR 1099, Rennes, France
| | - Antoine Simon
- Univ Rennes, CHU Rennes, CLCC Eugène Marquis, Inserm, LTSI - UMR 1099, Rennes, France
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Benali K, Barré V, Hermida A, Galand V, Milhem A, Philibert S, Boveda S, Bars C, Anselme F, Maille B, André C, Behaghel A, Moubarak G, Clémenty N, Da Costa A, Arnaud M, Venier S, Sebag F, Jésel-Morel L, Sagnard A, Champ-Rigot L, Dang D, Guy-Moyat B, Abbey S, Garcia R, Césari O, Badenco N, Lepillier A, Ninni S, Boulé S, Maury P, Algalarrondo V, Bakouboula B, Mansourati J, Lesaffre F, Lagrange P, Bouzeman A, Muresan L, Bacquelin R, Bortone A, Bun SS, Pavin D, Macle L, Martins RP. Recurrences of Atrial Fibrillation Despite Durable Pulmonary Vein Isolation: The PARTY-PVI Study. Circ Arrhythm Electrophysiol 2023; 16:e011354. [PMID: 36802906 DOI: 10.1161/circep.122.011354] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
BACKGROUND Recurrences of atrial fibrillation (AF) after pulmonary vein isolation (PVI) are mainly due to pulmonary vein reconnection. However, a growing number of patients have AF recurrences despite durable PVI. The optimal ablative strategy for these patients is unknown. We analyzed the impact of current ablation strategies in a large multicenter study. METHODS Patients undergoing a redo ablation for AF and presenting durable PVI were included. The freedom from atrial arrhythmia after pulmonary vein-based, linear-based, electrogram-based, and trigger-based ablation strategies were compared. RESULTS Between 2010 and 2020, 367 patients (67% men, 63±10 years, 44% paroxysmal) underwent a redo ablation for AF recurrences despite durable PVI at 39 centers. After durable PVI was confirmed, linear-based ablation was performed in 219 (60%) patients, electrogram-based ablation in 168 (45%) patients, trigger-based ablation in 101 (27%) patients, and pulmonary vein-based ablation in 56 (15%) patients. Seven patients (2%) did not undergo any additional ablation during the redo procedure. After 22±19 months of follow-up, 122 (33%) and 159 (43%) patients had a recurrence of atrial arrhythmia at 12 and 24 months, respectively. No significant difference in arrhythmia-free survival was observed between the different ablation strategies. Left atrial dilatation was the only independent factor associated with arrhythmia-free survival (HR, 1.59 [95% CI, 1.13-2.23]; P=0.006). CONCLUSIONS In patients with recurrent AF despite durable PVI, no ablation strategy used alone or in combination during the redo procedure appears to be superior in improving arrhythmia-free survival. Left atrial size is a significant predictor of ablation outcome in this population.
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Affiliation(s)
- Karim Benali
- CHU Saint Etienne, University of Rennes, INSERM, LTSI -UMR 1099, Rennes (K.B.)
| | - Valentin Barré
- University of Rennes, CHU Rennes, INSERM, LTSI-UMR 1099, Rennes (V.B., V.G., D.P., R.P.M.)
| | | | - Vincent Galand
- University of Rennes, CHU Rennes, INSERM, LTSI-UMR 1099, Rennes (V.B., V.G., D.P., R.P.M.)
| | | | | | - Serge Boveda
- Cardiology-Heart Rhythm Management Department, Clinique Pasteur, Toulouse (S.B.)
| | | | | | | | | | | | | | | | | | | | | | - Frédéric Sebag
- Rythmologie, Institut Mutualiste Montsouris, Paris (F.S.)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Babé Bakouboula
- Institut Cardiovasculaire de Strasbourg, Clinique RHENA (B.B.)
| | | | | | | | | | | | | | | | | | - Dominique Pavin
- University of Rennes, CHU Rennes, INSERM, LTSI-UMR 1099, Rennes (V.B., V.G., D.P., R.P.M.)
| | - Laurent Macle
- Department of Medicine, Electrophysiology Service at the Montreal Heart Institute, Canada (L.M.)
| | - Raphaël P Martins
- University of Rennes, CHU Rennes, INSERM, LTSI-UMR 1099, Rennes (V.B., V.G., D.P., R.P.M.)
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Rosier L, Zouaghi A, Barré V, Martins R, Probst V, Marijon E, Sadoul N, Chauveau S, Da Costa A, Badoz M, Peyrol M, Barraud J, Massoullie G, Eschalier R, Espinosa M, Lesaffre F, Garcia R, Degand B, Noël A, Mansourati J, Extramiana F, Algalarrondo V, Devilliers H, Cottin Y, Gandjbakhch E, Guenancia C. High Risk of Sustained Ventricular Arrhythmia Recurrence After Acute Myocarditis. J Clin Med 2020; 9:jcm9030848. [PMID: 32244983 PMCID: PMC7141537 DOI: 10.3390/jcm9030848] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/10/2020] [Accepted: 03/19/2020] [Indexed: 12/26/2022] Open
Abstract
Acute myocarditis is associated with cardiac arrhythmia in 25% of cases; a third of these arrhythmias are ventricular tachycardia (VT) or ventricular fibrillation (VF). The implantation of a cardiac defibrillator (ICD) following sustained ventricular arrhythmia remains controversial in these patients. We sought to assess the risk of major arrhythmic ventricular events (MAEs) over time in patients implanted with an ICD following sustained VT/VF in the acute phase of myocarditis compared to those implanted for VT/VF occurring on myocarditis sequelae. Our retrospective observational study included patients implanted with an ICD following VT/VF during acute myocarditis or VT/VF on myocarditis sequelae, from 2007 to 2017, in 15 French university hospitals. Over a median follow-up period of 3 years, MAE occurred in 11 (39%) patients of the acute myocarditis group and 24 (60%) patients of the myocarditis sequelae group. Kaplan–Meier MAE rate estimates at one and three years of follow-up were 19% and 45% in the acute group, and 43% and 64% in the sequelae group. Patients who experienced sustained ventricular arrhythmias during acute myocarditis had a very high risk of VT/VF recurrence during follow-up. These results show that the risk of MAE recurrence remains high after resolution of the acute episode.
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Affiliation(s)
- Laurent Rosier
- Cardiology Department, Dijon Bourgogne University Hospital, 21000 Dijon, France; (L.R.); (Y.C.)
| | - Amir Zouaghi
- Cardiology Department, Hôpitaux Universitaires Pitié Salpêtrière, APHP, 75013 Paris, France; (A.Z.); (E.G.)
| | - Valentin Barré
- Cardiology Department, University Hospital, 35000 Rennes, France; (V.B.); (R.M.)
| | - Raphaël Martins
- Cardiology Department, University Hospital, 35000 Rennes, France; (V.B.); (R.M.)
| | - Vincent Probst
- Institut du thorax, Service de Cardiologie and INSERM 1087, 44000 Nantes, France;
| | - Eloi Marijon
- Cardiology Department, European Georges Pompidou Hospital and Paris Descartes University, 75015 Paris, France;
| | - Nicolas Sadoul
- Cardiology Department, University Hospital, 54511 Nancy, France
| | - Samuel Chauveau
- Cardiology Department, University Hospital Louis Pradel, 69500 Lyon, France;
| | - Antoine Da Costa
- Cardiology Department, University Hospital, 42055 Saint-Etienne, France;
| | - Marc Badoz
- Cardiology Department, University Hospital, 25030 Besançon, France;
| | - Michael Peyrol
- Aix-Marseille University, Assistance Publique–Hôpitaux de Marseille (APHM), Department of Cardiology, Nord Hospital, 13000 Marseille, France; (M.P.); (J.B.)
| | - Jérémie Barraud
- Aix-Marseille University, Assistance Publique–Hôpitaux de Marseille (APHM), Department of Cardiology, Nord Hospital, 13000 Marseille, France; (M.P.); (J.B.)
| | - Grégoire Massoullie
- Cardiology Department, CHU Clermont-Ferrand, Clermont-Ferrand, France and Université Clermont Auvergne, CHU Clermont-Ferrand, CNRS, SIGMA Clermont, Institut Pascal, 63000 Clermont-Ferrand, France; (G.M.); (R.E.)
| | - Romain Eschalier
- Cardiology Department, CHU Clermont-Ferrand, Clermont-Ferrand, France and Université Clermont Auvergne, CHU Clermont-Ferrand, CNRS, SIGMA Clermont, Institut Pascal, 63000 Clermont-Ferrand, France; (G.M.); (R.E.)
| | - Madeline Espinosa
- Cardiology Department, University Hospital, 51100 Reims, France; (M.E.); (F.L.)
| | - François Lesaffre
- Cardiology Department, University Hospital, 51100 Reims, France; (M.E.); (F.L.)
| | - Rodrigue Garcia
- CHU Poitiers, Centre Cardiovasculaire, 86000 Poitiers, France; (R.G.) ; (B.D.)
| | - Bruno Degand
- CHU Poitiers, Centre Cardiovasculaire, 86000 Poitiers, France; (R.G.) ; (B.D.)
| | - Antoine Noël
- Cardiology Department, University Hospital, 29200 Brest, France; (A.N.); (J.M.)
| | - Jacques Mansourati
- Cardiology Department, University Hospital, 29200 Brest, France; (A.N.); (J.M.)
| | - Fabrice Extramiana
- Department of Cardiology, Bichat Claude Bernard Hospital, University Paris Diderot, 75018 Paris, France; (F.E.); (V.A.)
| | - Vincent Algalarrondo
- Department of Cardiology, Bichat Claude Bernard Hospital, University Paris Diderot, 75018 Paris, France; (F.E.); (V.A.)
| | - Hervé Devilliers
- Internal Medicine 2 Department, Dijon Bourgogne University Hospital, 21000 Dijon, France;
| | - Yves Cottin
- Cardiology Department, Dijon Bourgogne University Hospital, 21000 Dijon, France; (L.R.); (Y.C.)
- PEC 2, Univ. Bourgogne Franche–Comté, 21000 Dijon, France
| | - Estelle Gandjbakhch
- Cardiology Department, Hôpitaux Universitaires Pitié Salpêtrière, APHP, 75013 Paris, France; (A.Z.); (E.G.)
| | - Charles Guenancia
- Cardiology Department, Dijon Bourgogne University Hospital, 21000 Dijon, France; (L.R.); (Y.C.)
- PEC 2, Univ. Bourgogne Franche–Comté, 21000 Dijon, France
- Correspondence: ; Tel.: +33-380293536; Fax: +33-380293879
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Galand V, Ghoshhajra B, Szymonifka J, Das S, Orencole M, Barré V, Martins RP, Leclercq C, Hung J, Truong QA, Singh JP. Left ventricular wall thickness assessed by cardiac computed tomography and cardiac resynchronization therapy outcomes. Europace 2020; 22:401-411. [PMID: 31865389 DOI: 10.1093/europace/euz322] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/29/2019] [Indexed: 12/27/2022] Open
Abstract
AIMS Up to 30% of selected heart failure patients do not benefit clinically from cardiac resynchronization therapy (CRT). Left ventricular (LV) wall thickness (WT) analysed using computed tomography (CT) has rarely been evaluated in response to CRT and mitral regurgitation (MR) improvement. We examined the association of LVWT and the ability to reverse LV remodelling and MR improvement after CRT. METHODS AND RESULTS Fifty-four patients scheduled for CRT underwent pre-procedural CT. Reduced LVWT was defined as WT <6 mm and quantified as a percentage of total LV area. Endpoints were 6-month clinical and echocardiographic response to CRT [New York Heart Association (NYHA) class, LV ejection fraction (LVEF), LV end-diastolic volume (LVEDV), and LV end-systolic volume (LVESV)], MR improvement and 2-year major adverse cardiac events (MACE). Patients were divided into three groups according to the percentage of LVWT <6 mm area: ≤20%, 20-50%, and ≥50%. At 6 months, 75%, 71%, and 42% of the patients experienced NYHA improvement in the ≤20%, 20-50%, and ≥50% group, respectively. Additionally, ≤20% group presented higher LVEF, LVEDV, and LVESV positive response rate (86%, 59%, and 83%, respectively). Both 20-50% and ≥50% groups exhibited a lower LVEF, LVEDV, and LVESV positive response rate (52% and 42%; 47% and 45%; and 53% and 45%, respectively). Additionally, ≥25% of LVWT <6 mm inclusive of at least one papillary muscle insertion was the only predictor of lack of MR improvement. Lastly, ≥50% group experienced significantly lower 2-year MACE survival free probability. CONCLUSION WT evaluated using CT could help to stratify the response to CRT and predict MR improvement and outcomes. CLINICAL TRIAL REGISTRATION NCT01097733.
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Affiliation(s)
- Vincent Galand
- Cardiology Department, University of Rennes, CHU Rennes, INSERM, LTSI - UMR 1099, F-35000 Rennes, France.,Cardiology Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Brian Ghoshhajra
- Cardiac MR PET CT Program, Division of Cardiology, Department of Radiology (Cardiovascular Imaging), Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jackie Szymonifka
- Department of Public Health, Division of Biostatistics, New York University, New York, NY, USA
| | - Saumya Das
- Cardiology Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Mary Orencole
- Cardiology Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Valentin Barré
- Cardiology Department, University of Rennes, CHU Rennes, INSERM, LTSI - UMR 1099, F-35000 Rennes, France
| | - Raphaël P Martins
- Cardiology Department, University of Rennes, CHU Rennes, INSERM, LTSI - UMR 1099, F-35000 Rennes, France
| | - Christophe Leclercq
- Cardiology Department, University of Rennes, CHU Rennes, INSERM, LTSI - UMR 1099, F-35000 Rennes, France
| | - Judy Hung
- Cardiology Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Quynh A Truong
- Department of Radiology and Cardiology, Weill Cornell Medicine, New York, NY, USA
| | - Jagmeet P Singh
- Cardiology Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
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