System and method for three-dimensional mapping of electrophysiology information
US8038625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2005 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Mar 12, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/349
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrophysiology apparatus is used to measure electrical activity occurring in a heart of a patient and to visualize the electrical activity and/or information related to the electrical activity. A three-dimensional map of the electrical activity and/or the information related to the electrical activity is created. Exemplary maps include a time difference between action potentials at a roving electrode and a reference electrode, the peak-to-peak timing of action potentials at the roving electrode, the peak negative voltage of action potentials at the roving electrode, complex fractionated electrogram information, a dominant frequency of an electrogram signal, a maximum peak amplitude at the dominant frequency, a ratio of energy in one band of the frequency-domain to the energy in a second band of the frequency-domain, a low-frequency or high-frequency passband of interest, a frequency with the maximum energy in a passband, a number of peaks within a passband, an energy, power, and/or area in each peak, a ratio of energy and/or area in each peak to that in another passband, and a width of each peak in a spectrum. Colors, shades of colors, and/or grayscales are assigned to values…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.