Title :
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
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;
Conference_Titel :
Computers in Cardiology 1998
Conference_Location :
Cleveland, OH
Print_ISBN :
0-7803-5200-9
DOI :
10.1109/CIC.1998.731746
