Title :
Body surface Laplacian mapping of ventricular depolarization from potential recordings in humans
Author :
Hara, M.O. ; Yu, X. ; Mehdi, N. ; Schwartz, C. ; Wu, D. ; Avitall, B. ; He, B.
Author_Institution :
Bioeng. Program, Illinois Univ., Chicago, IL, USA
Abstract :
We investigated the feasibility of obtaining body surface Laplacian maps (BSLMs) from unipolar electrocardiographic recordings in humans. The overall pattern of the BSLMs during ventricular depolarization is reproducible for subjects examined and for multiple sets of maps within a single subject. Right and left ventricular activities are well resolved in the BSLMs over the anterior chest as compared with body surface potential maps (BSPMs). Our experimental results demonstrate the feasibility of performing body surface Laplacian electrocardiographic mapping from potential recordings. The effects of measurement noise and electrode position uncertainty on the Laplacian derivation were also evaluated by computer simulation
Keywords :
Laplace equations; digital simulation; electrocardiography; medical signal processing; BSLM; Laplacian derivation; anterior chest; body surface Laplacian mapping; body surface potential maps; cardiac disease; computer simulation; electrode position uncertainty; humans; left ventricular activities; measurement noise; multiple sets; potential recordings; right ventricular activities; unipolar electrocardiographic recordings; ventricular depolarization; Bioelectric phenomena; Computer simulation; Electric potential; Electrodes; Gaussian noise; Humans; Laplace equations; Noise measurement; Position measurement; Signal processing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575082
