Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Localization of late potential sources in myocardial infarction
Autore:
Leder, U; Haueisen, J; Pohl, P; Surber, R; Heyne, JP; Nowak, H; Figulla, HR;
Indirizzi:
Univ Jena, Clin Internal Med, Dept Cardiol, D-07740 Jena, Germany Univ Jena Jena Germany D-07740 Med, Dept Cardiol, D-07740 Jena, Germany Univ Jena, Biomagnet Ctr, Neurol Clin, D-07740 Jena, Germany Univ Jena Jena Germany D-07740 t Ctr, Neurol Clin, D-07740 Jena, Germany Univ Jena, Inst Diagnost & Intervent Radiol, D-07740 Jena, Germany Univ Jena Jena Germany D-07740 & Intervent Radiol, D-07740 Jena, Germany Jenasensor eV, Jena, Germany Jenasensor eV Jena GermanyJenasensor eV, Jena, Germany
Titolo Testata:
INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING
fascicolo: 4, volume: 17, anno: 2001,
pagine: 315 - 325
SICI:
0167-9899(200108)17:4<315:LOLPSI>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
SIGNAL-AVERAGED ELECTROCARDIOGRAPHY; VENTRICULAR LATE POTENTIALS; BODY-SURFACE; MAGNETOCARDIOGRAPHY;
Keywords:
body surface mapping; inverse solution; late potentials; magnetocardiography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Leder, U Univ Jena, Clin Internal Med, Dept Cardiol, Erlanger Allee 101, D-07740 Jena, Germany Univ Jena Erlanger Allee 101 Jena Germany D-07740 Jena, Germany
Citazione:
U. Leder et al., "Localization of late potential sources in myocardial infarction", INT J CARDI, 17(4), 2001, pp. 315-325

Abstract

Introduction: Late potentials (LP) are markers of arrhythmogenic events after myocardial infarction (MI). The localization of LP sources would help to identify arrhythmogenic myocardium. The purpose of this study was to localize these LP sources from non-invasive body surface mapping data. Methods and Results: Six patients were investigated with cardiac MRI and signal averaged 62-lead magnetocardiography after MI. Three of them were suffering from sustained ventricular tachycardia (VT). Sophisticated computer algorithms were used in order to compute the current density on the surface of the left ventricle. We compared these current density distributions for the entire QRS complex and the high frequency LP signals. In the three patients which had premature ventricular complexes (PVCs) we localized the exit sites of these arrhythmias. We found a close matching of the low current density areas based on the QRS complexes and the high current density areas based onthe LP signals. These areas predominantly corresponded to sites of the infarctions. Exit sites of PVCs were located close to these areas. Conclusions: By means of sophisticated computer algorithms we were able to localize LPsources. This would be useful in steering catheter ablation and coronary revascularization therapies. However, the method has to be proven with the help of invasive mapping in a larger number of patients.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 10:34:53