WO2007106829A3 - Automated analysis of a cardiac signal based on dynamical characteristics of the cardiac signal - Google Patents
Automated analysis of a cardiac signal based on dynamical characteristics of the cardiac signal Download PDFInfo
- Publication number
- WO2007106829A3 WO2007106829A3 PCT/US2007/063916 US2007063916W WO2007106829A3 WO 2007106829 A3 WO2007106829 A3 WO 2007106829A3 US 2007063916 W US2007063916 W US 2007063916W WO 2007106829 A3 WO2007106829 A3 WO 2007106829A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cardiac signal
- signal
- trajectory
- state space
- partial state
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
- A61B5/361—Detecting fibrillation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
Abstract
Systems and techniques relating to locating cardiac wave forms in a cardiac signal, and to detecting a physiological condition, such as ventricular fibrillation. In general, in one aspect, a machine-implemented method includes obtaining a sensed cardiac signal of an organism, the sensed cardiac signal comprising a time series x(t); applying a Hilbert (H) transform to the time series x(t) to obtain H(x(t)), wherein x(t) and H(x(t)) together forming a partial state space trajectory; determining a speed of trajectory, for the sensed cardiac signal, from the partial state space trajectory; and identifying physiological information concerning the organism based on a combination of first and second signal elements, the first signal element including a phase property or an amplitude property of the speed of trajectory, and the second signal element including an amplitude property of the partial state space trajectory.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK07758468.8T DK1993439T3 (en) | 2006-03-14 | 2007-03-13 | AUTOMATED ANALYSIS OF A HEART SIGNAL BASED ON DYNAMIC CHARACTERISTICS OF THE HEART SIGNAL |
EP07758468.8A EP1993439B1 (en) | 2006-03-14 | 2007-03-13 | Automated analysis of a cardiac signal based on dynamical characteristics of the cardiac signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/376,603 US7729753B2 (en) | 2006-03-14 | 2006-03-14 | Automated analysis of a cardiac signal based on dynamical characteristics of the cardiac signal |
US11/376,603 | 2006-03-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007106829A2 WO2007106829A2 (en) | 2007-09-20 |
WO2007106829A3 true WO2007106829A3 (en) | 2008-05-22 |
Family
ID=38510246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/063916 WO2007106829A2 (en) | 2006-03-14 | 2007-03-13 | Automated analysis of a cardiac signal based on dynamical characteristics of the cardiac signal |
Country Status (4)
Country | Link |
---|---|
US (1) | US7729753B2 (en) |
EP (1) | EP1993439B1 (en) |
DK (1) | DK1993439T3 (en) |
WO (1) | WO2007106829A2 (en) |
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2007
- 2007-03-13 EP EP07758468.8A patent/EP1993439B1/en active Active
- 2007-03-13 DK DK07758468.8T patent/DK1993439T3/en active
- 2007-03-13 WO PCT/US2007/063916 patent/WO2007106829A2/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2003071945A1 (en) * | 2002-02-28 | 2003-09-04 | St. Jude Medical Ab | Medical device |
WO2006044919A2 (en) * | 2004-10-20 | 2006-04-27 | Cardionet, Inc. | Monitoring physiological activity using partial state space reconstruction |
Non-Patent Citations (1)
Title |
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BENITEZ D., GAYDECKI P.A., ZAIDI A, FITZPATRICK A.P.: "The use of the Hilbert transform in ECG", COMPUTERS IN BIOLOGY AND MEDICINE, vol. 31, no. 5, 2001, pages 399 - 406, XP008089586 * |
Also Published As
Publication number | Publication date |
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EP1993439B1 (en) | 2019-05-15 |
US20070219453A1 (en) | 2007-09-20 |
EP1993439A2 (en) | 2008-11-26 |
WO2007106829A2 (en) | 2007-09-20 |
US7729753B2 (en) | 2010-06-01 |
DK1993439T3 (en) | 2019-08-05 |
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