Mapping the organization of human atrial fibrillation using a basket catheter

Author

Barbaro, V. ; Bartolini, P. ; Calcagnini, G. ; Censi, F. ; Michelucci, A. ; Morelli, S.

Author_Institution

Biomed. Eng. Lab., Ist. Superiore di Sanita, Roma, Italy

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

475

Lastpage

478

Abstract

From recent studies of atrial fibrillation (AF) in animals and humans it appears that improvement in the success rate of ablation may be achieved by evaluating the local electrophysiological properties of the atrial tissue. The aim of this study was to develop an automated method for the assessment of the organization of the whole right atrium. Bipolar electrograms were obtained from multielectrode basket catheters (MBC) in the right atrium in 5 informed patients with AF. The local atrial period (AP) and number of occurrence (NO) were calculated from each electrogram. Organization of the whole atrium was estimated by bidimensional interpolation of the AP and NO measurements. AP and NO maps allowed to identify areas with different degree of organization. A larger database is needed to assess the clinical value of our approach

Keywords

biological tissues; biomedical electrodes; electrocardiography; interpolation; medical signal processing; ablation; animals; atrial tissue; automated method; basket catheter; bidimensional interpolation; bipolar electrograms; human atrial fibrillation; humans; local atrial period; local electrophysiological properties; multielectrode basket catheters; number of occurrence; organization mapping; whole right atrium; Atrial fibrillation; Band pass filters; Biomedical measurements; Cardiology; Catheters; Electrodes; Finite impulse response filter; Humans; Interference; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 1999

Conference_Location

Hannover

ISSN

0276-6547

Print_ISBN

0-7803-5614-4

Type

conf

DOI

10.1109/CIC.1999.826011

Filename

826011