Detection of epileptiform activity
US9579035B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2006 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Jan 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2218/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to detection of epileptiform activity. In order to accomplish a mechanism with improved specificity to epileptiform activity and with the capability to detect specific type of epileptic patterns, brain wave signal data obtained from a subject is decomposed into at least one predetermined subband, each subband being indicative of a specific type of epileptiform activity. The subband-specific output data obtained represents a time series of a quantitative characteristic of the brain wave signal data. At least one measure is determined for any one or more of the at least one predetermined subband, the at least one measure belonging to a measure set comprising a first measure indicative of the entropy of the subband-specific output data and a second measure indicative of a normalized form of k:th order central moment of the subband-specific output data, where k is an integer higher than three. The presence of a specific type of epileptiform activity may be detected based on the at least one measure of the respective subband.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.