Method and system for characterizing cardiovascular systems from single channel data
US9968265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2015 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | May 4, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7267
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods to identify and risk stratify disease states, cardiac structural defects, functional cardiac deficiencies induced by teratogens and other toxic agents, pathological substrates, conduction delays and defects, and ejection fraction using single channel biological data obtained from the subject. A modified Matching Pursuit (MP) algorithm may be used to find a noiseless model of the data that is sparse and does not assume periodicity of the signal. After the model is derived, various metrics and subspaces are extracted to characterize the cardiac system. In another method, space-time domain is divided into a number of regions (which is largely determined by the signal length), the density of the signal is computed in each region and input to a learning algorithm to associate them to the desired cardiac dysfunction indicator target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.