AU2001286654A1 - Ischemia identification, quantification and partial localization in mcg - Google Patents
Ischemia identification, quantification and partial localization in mcgInfo
- Publication number
- AU2001286654A1 AU2001286654A1 AU2001286654A AU8665401A AU2001286654A1 AU 2001286654 A1 AU2001286654 A1 AU 2001286654A1 AU 2001286654 A AU2001286654 A AU 2001286654A AU 8665401 A AU8665401 A AU 8665401A AU 2001286654 A1 AU2001286654 A1 AU 2001286654A1
- Authority
- AU
- Australia
- Prior art keywords
- ischemia
- segment
- degree
- dipole
- mcg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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
- A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
- A61B5/243—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetocardiographic [MCG] signals
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Cardiology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
A magnetic dipole model based on MCG data of the heart is used to localize cardiac tissue afflicted with ischemia. The direction of displacement of the dipole during the ST segment, superimposed on the heart's general outline, indicates a rough location of the ischemic cardiac tissue (410,412). Furthermore, the extent of ischemia is quantified based upon how much displacement occurs in the ST segment (414). For example, if significant dipole displacement occurs in the first quarter of the ST segment, then it is identified as a first-degree ischemia. Similarly, if displacement occurs in 1/2, 3/4, or 1 full ST segment, then the level of ischemia is identified as second degree, thrid degree, or fourth degree ischemia (fourth degree being the worst kind of ischemia where the dipole's position is dynamic all throughout the ST segment).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22864000P | 2000-08-29 | 2000-08-29 | |
US60/228,640 | 2000-08-29 | ||
PCT/US2001/026307 WO2002017769A2 (en) | 2000-08-29 | 2001-08-23 | Ischemia identification, quantification and partial localization in mcg |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001286654A1 true AU2001286654A1 (en) | 2002-03-13 |
Family
ID=22858022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001286654A Abandoned AU2001286654A1 (en) | 2000-08-29 | 2001-08-23 | Ischemia identification, quantification and partial localization in mcg |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1349494B1 (en) |
JP (1) | JP4819296B2 (en) |
CN (1) | CN100337584C (en) |
AT (1) | ATE515231T1 (en) |
AU (1) | AU2001286654A1 (en) |
WO (1) | WO2002017769A2 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1309344C (en) * | 2004-11-08 | 2007-04-11 | 中国科学院物理研究所 | Adaptive digital filtering method for magnetocardiographic noise suppression |
WO2009077915A1 (en) * | 2007-12-18 | 2009-06-25 | Koninklijke Philips Electronics N.V. | Automated identification of culprit coronary artery using anatomically oriented ecg data display |
CN100581453C (en) * | 2008-09-12 | 2010-01-20 | 北京大学 | Determination method of extreme point of magnetocardiogram measurement area |
CN101897576B (en) * | 2010-07-18 | 2011-12-07 | 北京大学 | Method for determining magnetocardiogram measurement range based on cardiac single current dipole model |
US8688192B2 (en) * | 2011-01-31 | 2014-04-01 | Seiko Epson Corporation | High-resolution magnetocardiogram restoration for cardiac electric current localization |
CN103142223B (en) * | 2011-12-07 | 2015-02-18 | 同济大学 | Heart magnetic signal processing method based on extreme value difference |
UA104073C2 (en) | 2012-07-13 | 2013-12-25 | Илья Анатольевич Чайковский | Method for diagnosing degree of ischemic lesions of myocardium based on analysis of temporal changes in current density |
US9855049B2 (en) * | 2013-12-11 | 2018-01-02 | Miracor Medical Systems Gmbh | System and method for treating heart tissue |
US9433363B1 (en) | 2015-06-18 | 2016-09-06 | Genetesis Llc | Method and system for high throughput evaluation of functional cardiac electrophysiology |
US10602946B2 (en) * | 2015-12-30 | 2020-03-31 | Vectracor, Inc. | Mobile cardiac monitoring device |
EP3207866A1 (en) * | 2016-02-18 | 2017-08-23 | Biomagnetik Park GmbH | Vector magnetocardiography method and vector magnetocardiographic system |
EP3308703B1 (en) | 2016-10-11 | 2019-10-02 | Biomagnetik Park GmbH | Magnetocardiographic method and magnetocardiographic system |
CN108577825B (en) * | 2018-01-11 | 2021-06-18 | 中国科学院上海微系统与信息技术研究所 | Myocardial ischemia lesion position positioning method and system, storage medium and terminal |
WO2019152342A1 (en) * | 2018-02-01 | 2019-08-08 | Cardiac Pacemakers, Inc. | An insertable cardiac monitoring device designed for the mri environment |
CN110504025A (en) * | 2018-05-16 | 2019-11-26 | 漫迪医疗仪器(上海)有限公司 | The recognition methods of biological condition code based on biological magnetic and system, identification terminal |
JP7394133B2 (en) * | 2018-11-20 | 2023-12-07 | ジェネテシス インク. | System and method for diagnosing cardiac ischemia and coronary artery disease |
CN109864733A (en) * | 2019-01-16 | 2019-06-11 | 漫迪医疗仪器(上海)有限公司 | Detection method, system, medium and the equipment of heart and brain exception |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5365426A (en) | 1987-03-13 | 1994-11-15 | The University Of Maryland | Advanced signal processing methodology for the detection, localization and quantification of acute myocardial ischemia |
DE3922150A1 (en) | 1989-07-06 | 1991-01-17 | Philips Patentverwaltung | METHOD FOR RECONSTRUCTING THE SPATIAL POWER DISTRIBUTION IN A BIOLOGICAL OBJECT AND ARRANGEMENT FOR IMPLEMENTING THE METHOD |
US5594849A (en) * | 1991-08-09 | 1997-01-14 | Yale University | Biomedical magnetism imaging apparatus and method |
JP2983362B2 (en) * | 1992-01-14 | 1999-11-29 | 株式会社日立製作所 | Biomagnetic measurement device |
US5228443A (en) * | 1992-03-27 | 1993-07-20 | General Electric Company | Method for estimation and display of current source distribution from electric and magnetic measurements and 3D anatomical data |
US5526811A (en) * | 1993-06-15 | 1996-06-18 | Biomagnetic Technologies, Inc. | Apparatus and process for determining the sources of biomagnetic activity |
DE19511532A1 (en) * | 1995-03-29 | 1996-10-02 | Siemens Ag | Process for locating electrical cardiac activity |
US5947899A (en) * | 1996-08-23 | 1999-09-07 | Physiome Sciences | Computational system and method for modeling the heart |
DE19808985B4 (en) * | 1997-03-07 | 2012-06-14 | Hitachi, Ltd. | Method and device for biomagnetic field measurement |
JPH10248821A (en) * | 1997-03-14 | 1998-09-22 | Hitachi Ltd | Display method for magnetic field distribution and magnetic field source |
JP4208275B2 (en) * | 1997-10-30 | 2009-01-14 | 株式会社東芝 | Diagnostic device for intracardiac electrical phenomenon and method for displaying the phenomenon |
JP3712349B2 (en) * | 2000-07-18 | 2005-11-02 | 独立行政法人科学技術振興機構 | Surviving myocardial diagnostic apparatus and operating method thereof |
-
2001
- 2001-08-23 AU AU2001286654A patent/AU2001286654A1/en not_active Abandoned
- 2001-08-23 AT AT01966114T patent/ATE515231T1/en not_active IP Right Cessation
- 2001-08-23 JP JP2002522750A patent/JP4819296B2/en not_active Expired - Fee Related
- 2001-08-23 CN CNB018178693A patent/CN100337584C/en not_active Expired - Fee Related
- 2001-08-23 EP EP01966114A patent/EP1349494B1/en not_active Expired - Lifetime
- 2001-08-23 WO PCT/US2001/026307 patent/WO2002017769A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2002017769A3 (en) | 2002-08-15 |
ATE515231T1 (en) | 2011-07-15 |
EP1349494B1 (en) | 2011-07-06 |
CN100337584C (en) | 2007-09-19 |
CN1471374A (en) | 2004-01-28 |
WO2002017769A2 (en) | 2002-03-07 |
JP2004507305A (en) | 2004-03-11 |
WO2002017769A9 (en) | 2003-08-07 |
JP4819296B2 (en) | 2011-11-24 |
EP1349494A2 (en) | 2003-10-08 |
EP1349494A4 (en) | 2008-11-19 |
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