Apparatus and method for detecting and filtering artifacts by analysis of a cardiac vectogram
US8359091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2011 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus and method for detecting and filtering noise artifacts by analysis of a cardiac vectogram is disclosed. An active medical device collects electrical activity signals of a patient's heart over a series of cardiac cycles. At least two distinct temporal components (Vbip, Vuni) are obtained from at least two endocardial electrogram (EGM) signals that are collected concurrently on different respective channels from the same heart cavity. The means for analyzing and filtering of the active medical device operates by: constructing a non-temporal 2D characteristic of a vectogram (VGM) of an analyzed cardiac cycle, using a variation of one of the two distinct temporal components (Vuni) as a function of the other (Vbip); conducting a morphological analysis of the non-temporal 2D characteristic to derive at least one intrinsic descriptor parameter, including the average angle of velocity vectors of consecutive data points of the 2D characteristic, and classifying the analyzed cardiac cycle as invalid noisy cycle or as valid not noisy cycle, depending on the analysis of the descriptor parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.