Spatial regularization of the inverse problem of electrocardiography: noncontact mapping of unipolar and bipolar endocardial electrograms

Author

Velipasaogu, E.O. ; Berrier, Keith L. ; Sun, Huabin ; Khoury, Dirar S.

Author_Institution

Baylor Coll. of Med., Houston, TX, USA

fYear

1998

fDate

13-16 Sep 1998

Firstpage

121

Lastpage

124

Abstract

An adaptive spatial regularization method was developed and applied to solving the inverse problem of electrocardiography for reconstruction of endocardial electrograms based on measurements obtained with a noncontact multielectrode cavitary probe. The performance of the method was assessed in reconstructing unipolar as well as bipolar endocardial surface electrograms. The adaptive method provides superior results compared to zero-order Tikhonov regularization method

Keywords

adaptive signal processing; electrocardiography; inverse problems; medical signal processing; signal reconstruction; bipolar endocardial electrograms; electrocardiography inverse problem; endocardial electrograms reconstruction; noncontact mapping; noncontact multielectrode cavitary probe; spatial regularization; unipolar endocardial electrograms; zero-order Tikhonov regularization method; Electrocardiography; Electrodes; Geometry; Image reconstruction; Inverse problems; Probes; Rhythm; Stability; Surface reconstruction; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1998

Conference_Location

Cleveland, OH

ISSN

0276-6547

Print_ISBN

0-7803-5200-9

Type

conf

DOI

10.1109/CIC.1998.731746

Filename

731746