The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Dominant frequency analysis (DFA) and organization analysis (OA) of cardiac electrograms (EGMs) aims to establish clinical targets for cardiac arrhythmia ablation. However, these previous spectral descriptions of the EGM have often discarded relevant information in the spectrum, such as the harmonic structure or the spectral envelope. We propose a fully automated algorithm for estimating the spectral...
Current Sequential Cardiac Navigation Systems (SCNS) are widely used for creating either voltage or delay maps of the heart, allowing the physician to determine adequate therapy strategies and ablation targets. Given that the number or recorded electrograms (EGM) is a major determinant of the clinical procedure duration, our aim was to propose a method suitable for analyzing the spatial sampling rate...
Implantable Cardioverter Defibrillator (ICD) are devices which give relevant information about tachyarrhythmias in patients. The classical spectral approaches to assess cardiac electrograms (EGM) from ICD, Dominant Frequency Analysis (DFA) and Organization Analysis (OA) have often discarded relevant information in the spectrum, such as the harmonic structure. We propose a description, called Fourier...
Vasovagal Syncope (VVS) represents the most frequent cause of loss of consciousness. Additionally to its clinical usefulness, the tilt test is a good quality physiological gold standard for the spectral analysis of Heart Rate Variability (HRV). Noise removal in HRV signals is problematic, due to the presence of ectopic beats and non-stationary short-term trends. Given current Tilt Test systems simultaneously...
Modeling offers effective means of studying the effects of implant dimensions on the measured electrocardiograph (ECG) prior to any in vivo tests, and thus provides the designer with valuable information. Finite difference (FDM) and lead field approaches combined with cardiac activation models offer straightforward and effective methods for analyzing different ECG measurement configurations. In the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.