Concept

Artificial cardiac pacemaker

Related publications (143)

Deletion of peroxisome proliferator-activated receptor-alpha induces an alteration of cardiac functions

The peroxisome proliferator-activated receptor-alpha (PPARalpha) plays a major role in the control of cardiac energy metabolism. The role of PPARalpha on cardiac functions was evaluated by using PPARalpha knockout (PPARalpha -/-) mice. Hemodynamic paramete ...

2006

Design and performance of lead systems for the analysis of atrial signal components in the ECG

Zenichi Ihara

For over a century, electrocardiology has been observing human cardiac activity through recordings of electrocardiograms (ECG). The potential differences derived from the nine electrodes of the standard 12-lead ECG, placed at their designated positions, ar ...

EPFL2006

An investigation into therapies for atrial arrythmias using a biophysical model of the human atria

Lam Dang

The most common type of sustained arrhythmia is atrial fibrillation (AF), affecting about 2% of the general population and 8% to 11% of the elderly, more than 65 years of age. The treatment of atrial arrythmia is still based on empirical considerations and ...

EPFL2006

Ventricular and Atrial Activity Estimation Through Sparse ECG Signal Decompositions

Pierre Vandergheynst, Mathieu Lemay, Lorenzo Granai, Oscar Divorra Escoda

This paper explores a novel approach for ventricular and atrial activities estimation in electrocardiogram (ECG) signals, based on sparse source separation. Sparse decompositions of ECG over signal-adapted multi-component dictionaries can lead to natural s ...

2005

CMOS pixels for subretinal implantable prothesis

Mihai Adrian Ionescu, Philippe Renaud, Marco Mazza

This work reports on the design, fabrication, and characterization of CMOS pixels for subretinal implants, which seems to be an effective way to recover visual capabilities in some types of blindness. Two possible approaches are presented for CMOS pixel im ...

2005

Conductance catheter-based assessment of arterial input impedance, arterial function, and ventricular-vascular interaction in mice

Nikolaos Stergiopoulos, Patrick Segers, Nico Westerhof

Global assessment of both cardiac and arterial function is important for a meaningful interpretation of pathophysiological changes in animal models of cardiovascular disease. We simultaneously acquired left ventricular (LV) and aortic pressure and LV volum ...

2004

Improvement in the Quantification of Myocardial Perfusion Using an Automatic Spline-Based Registration Algorithm

Philippe Thévenaz

Purpose: To improve the quantification of myocardial perfusion by registering the time series of magnetic resonance (MR) images with injection of gadolinium. Materials and Methods: Eight patients underwent MR scans to perform myocardial perfusion exam. Two ...

Wiley-Liss, Inc.2003

Small Scanning Mirror Mechanism

Simon Nessim Henein

The CSE; has developed an optomechanical linear scanner. This scanner has a limited displacement range, performed with high resolution. The resolution is obtained through a very high precision motion guiding of the scanner itself. This paper describes the ...

2003

Interferometer Scanning Mirror Mechanism

Simon Nessim Henein

The CSEM has developed an optomechanical linear scanner. This scanner has a limited displacement range, performed with high resolution. The resolution is obtained through a very high precision motion guiding of the scanner itself. This paper describes the ...

Elveiser2002

Symptomatic postictal cardiac asystole in a young patient with partial seizures

Olaf Blanke

This report describes a patient with complex partial seizures arising from the right temporal lobe who developed symptomatic sinus arrest following the end of his seizure activity. A ventricular pacemaker was implanted and was documented to function approp ...

Oxford University Press2001

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