Zobrazeno 1 - 10
of 131
pro vyhledávání: '"E.J. Berbari"'
Publikováno v:
IEEE Transactions on Biomedical Engineering. 44:681-693
This paper presents a new, quantitative approach to measuring abnormal intra-QRS signals, using the high-resolution electrocardiogram (HRECG). These signals are conventionally known as QRS "notches and slurs." They are measured qualitatively and form
Publikováno v:
IEEE Transactions on Biomedical Engineering. 38:526-531
Extracellular potentials were calculated for a wave of activation propagating through a thin layer of tissue. Sources were represented on the basis of the bidomain model, with the observation point at the tissue surface. Calculated potentials were fo
Publikováno v:
2007 Computers in Cardiology.
Spatial heterogeneity of action potential properties has been related to cardiac arrhythmogenesis. In this study we used laser scanning confocal microscopy in conjunction with the fast potentiometric dye ANNINE-6 to monitor changes in cardiomyocyte t
Publikováno v:
2007 Computers in Cardiology.
Auto-regressive modeling procedures (AR) have been used to quantify low magnitude components of abnormal activation within the QRS complex, called abnormal intra-QRS potentials (AIQPs). Research is still needed to identify the range in which the AR m
Publikováno v:
Proceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Societ.
Autor:
C.D. Elliott, E.J. Berbari
Publikováno v:
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991.
The ambulatory ECG monitor (AEM) is widely used for recording data from patients with coronary artery disease. Recent interest has focused on monitoring myocardial ischemia as indicated by ST segment shifts. AEMs produce large volumes of data, in the
Autor:
Paul Lander, E.J. Berbari
Publikováno v:
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991.
This paper proposes the use of time-frequency representations of the signal-averaged ECG for optimal filtering. The goal of optimal filtering is to improve the signal-to-noise ratio of the ECG. This is achieved by reducing the variance of the signal
Autor:
E.J. Berbari, Paul Lander
Publikováno v:
[1990] Proceedings of the Twelfth Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
This paper discusses the use of spatial derivative maps to increase the resolution of areas of delayed or blocked conduction seen in contour maps of epicardial activation. Data from an experimental model of infarction was used. Spatial derivatives ar
Publikováno v:
Computers in Cardiology, 2004.
The aim of this study was to determine the feasibility of detecting His-Purkinje system (HPS) activity from an intracardiac lead field (HR bipole) between catheter electrodes in the high right atrium and the right ventricular apex. A secondary endpoi
Publikováno v:
Computers in Cardiology, 2004.
This study used a model of a cardiac muscle fiber composed of myocytes (M) and a centrally located insert of fibroblasts (F). Myocytes were represented with the Luo-Rudy model with physical dimensions of cultured neonatal mouse cardiac myocytes. Fibr