Generation of localized cardiac measures

Surgery – Diagnostic testing – Cardiovascular

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61B 50402

Patent

active

060472065

ABSTRACT:
A subject suspected of experiencing a myocardial infarction is monitored by applying sensors to the subject, where the sensors are configured to produce electrical signals representative of cardiac activity of the subject. Electrical signals are received from at least two of the sensors. The received signals then are processed to obtain a localized cardiac measure that is analyzed to determine whether the subject is experiencing a myocardial infarction.

REFERENCES:
patent: 4082087 (1978-04-01), Howson
patent: 4084583 (1978-04-01), Hjort
patent: 4422459 (1983-12-01), Simson
patent: 4458691 (1984-07-01), Netravali
patent: 4458692 (1984-07-01), Simson
patent: 4492235 (1985-01-01), Sitrick
patent: 4622980 (1986-11-01), Kunig
patent: 4630204 (1986-12-01), Mortara
patent: 4732157 (1988-03-01), Kaplan et al.
patent: 4751931 (1988-06-01), Briller et al.
patent: 4760540 (1988-07-01), Yuen
patent: 4781201 (1988-11-01), Wright et al.
patent: 4783660 (1988-11-01), Pierce
patent: 4793361 (1988-12-01), DuFault
patent: 4802491 (1989-02-01), Cohen et al.
patent: 4807173 (1989-02-01), Sommen et al.
patent: 4917099 (1990-04-01), Stice
patent: 4974598 (1990-12-01), John
patent: 4979110 (1990-12-01), Albrecht et al.
patent: 4993423 (1991-02-01), Stice
patent: 5010888 (1991-04-01), Jadvar et al.
patent: 5020540 (1991-06-01), Chamoun
patent: 5020541 (1991-06-01), Marriott
patent: 5046504 (1991-09-01), Albert et al.
patent: 5054496 (1991-10-01), Wen et al.
patent: 5107849 (1992-04-01), Bellin et al.
patent: 5109862 (1992-05-01), Kelen et al.
patent: 5146926 (1992-09-01), Cohen
patent: 5148812 (1992-09-01), Verrier et al.
patent: 5188116 (1993-02-01), Pommrehn et al.
patent: 5234404 (1993-08-01), Tuttle et al.
patent: 5237995 (1993-08-01), Cano
patent: 5265617 (1993-11-01), Verrier et al.
patent: 5318037 (1994-06-01), Evans et al.
patent: 5323783 (1994-06-01), Henkin et al.
patent: 5341811 (1994-08-01), Cano
patent: 5348020 (1994-09-01), Hutson
patent: 5377687 (1995-01-01), Evans et al.
patent: 5419337 (1995-05-01), Dempsey et al.
patent: 5421342 (1995-06-01), Mortara
patent: 5437285 (1995-08-01), Verrier et al.
patent: 5469857 (1995-11-01), Laurent et al.
patent: 5520191 (1996-05-01), Karlsson et al.
patent: 5520683 (1996-05-01), Subramaniam et al.
patent: 5560370 (1996-10-01), Verrier et al.
patent: 5570696 (1996-11-01), Arnold et al.
P. Lander et al., "Principles and signal processing techniques of the high-resolution electrocardiogram," Progress in Cardiovascular Disease 35:169-188 (1982).
R. Plonsey, "Laws governing current flow in the volume conductor" in the Theoretical Basis of Electrocariography, C. V. Nelson and D.B. Geselowitz, Eds., Clarendon Press, Oxford pp. 165-174, 1996.
M.L. Simoons et al. "Online Processing of Orthogonal Exercise Electrocardiograms" Computers and Biomedical Research 8:105-117, 1995.
J.C. Davis, Statistics and Data Analysis in Geology, 2nd Edition (1996) pp. 383-405.
Adam et al., "Ventricular Fibrillation and Fluctuations in the Magnitude of the Repolarization Vector," Computers in Cardiology, pp. 241-244 (1982).
Adam et al., "Fluctuations in T-Wave Morphology and Susceptibility to Ventricular Fibrillation," J. Electrocardiology 17(3), pp. 209-218 (1984).
Adam et al., "Estimation of Ventricular Vulnerability to Fibrillation Through T-Wave Time Series Analysis," Computers in Cardiology, pp. 307-310 (1981).
Cano et al., "Enhancement of Low--Level ECG Component in Noise With Time--Sequenced Adaptive Filtering," J. Electrocardiology, Vol. 23 Supplement, pp. 176-183 (1990).
Changiu et al., "A New Algorithm for Adaptive Nosie Cancellation Using Singular Value Decomposition," Acta Automatica Sinica, vol. 12, No. 2, pp. 146-153 (Apr. 1986) (Engl. translation and original paper).
Damen et al., "The use of the Singular Value Decomposition in Electrocardiology, " Medical & Biological Engineering & Computing, pp. 473-482 (1982).
El-Sherif et al., "Beat-to-Beat High-Resolution Electrocardiology; Technical and Clinical Aspects," Progress in Cardiovascular Diseases, vol. XXXV, No. 6, pp. 407-415 (1993).
El-Sherif et al., "Appraisal of a Low Noise Electrocardiogram," J. Am. Coll. Cardiol. 1(2), pp. 456-467 (1983).
Evans et al., "Redundancy Reduction for Improved Display and Analysis of Body Surface Potential Maps," Circulation Research, vol. 49, No. 1, pp. 197-203 (1981).
Kaufer et al., "Optimization of Multi-Ring Sensing Electrode Set," Annual International Conference of the IEEE Engineering in Medicine and Biology Society, vol. 12, No. 2, pp. 0612-0613 (1990).
Lander et al., "Relation Between Estimates of Myocardial Ischemia Using High Resolution Electrocardiography and Scintigraphic Images".
Meyer et al., "Electrocardiogram Baseline Noise Estimation and Removal Using Cubic Splines and State-Space Computation Techniques," Computers and Biomedical Research 10, pp. 459-470 (1977).
Mortara, "Source Consistency Filtering -Application to Resting ECG's," J. Electrocardiology, vol. 25 Supplement, pp. 200-206 (1992).
Mortara, "Source Consistency Filtering --A New Tool for ECG Noise Reduction," IEEE, pp. 125-128 (1992).
Nearing et al., "Dynamic Tracking of Cardiac Vulnerability by Complex Demodulation of the T Wave," Science, vol. 252, pp. 437-440 (1991).
Nearing et al., "Personal Computer System for Tracking Cardiac Vulnerability by Complex Demodulation of the T Wave," J. Appl. Physiol. 74, pp. 2606-2612 (1993).
Pedretti et al., "Prediction of Late Arrhythmic Events After Acute Myocardial Infarcation . . . Sustained Monomorphic Ventricular Tachycardia," A. J. Cardiol., vol. 71, No. 13, pp. 1131-1141 (1993).
Rasquinha et al., "Directional Depolarization Sensors of Body Surface ECG," Annual International Conference of the IEEE Engineering in Medicine and Biology Society, vol. 13, No. 4, pp. 1680-1681 (1991).
Ring et al., "Exercise-Induced ST Segment Alternans," American Heart Journal, vol. 111, No. 5, pp. 1009-1011 (1986).
Salerno et al., "Ventricular Arrhythmias During Acute Myocardial Ischaemia in Man. The Role and Significance of R-ST-T Alternans . . . ," European Heart Journal 7 (Supp. A), pp. 63-75 (1986).
Shvartsman et al., "Multichannel Signal Processing Based on Logic Averaging," IEEE Transactions on Biomedical Engineering, vol. BME-29, No. 7, pp. 531-536 (1982).
Smith et al., "Electrical Alternans and Cardiac Electrical Instability," Circulation, vol. 77, No. 1, 110-121 (1988).
Smith et al., "Subtle Alternating Electrocardiographic Morphology as an Indicator of Decreased Cardiac Electrical Stability," Computers in Cardiology, pp. 109-112 (1985).
Smith, "The Stochastic Nature of Cardiac Electrical Instability: Theory and Experiment," thesis, Mass. Institute of Technology (1985).
Verrier et al., "Electrophysiologic Basis for T Wave Alternans as an Index of Vulnerability to Ventricular Fibrillation," J. Cardiovascular Electrophysiology, vol. 5, No. 5, pp. 445-461 (1994).
Wel et al., "A New Method for Reducing Signal-Overlapping Noise in Standard Electrocardiogram," Proceedings of Computers in Cardiology, pp. 795-797 (1993).
Widrow, "Adaptive Interface Canceling," Adaptive Signal Processing, Applications Part IV, Chap. 12, Prentice-Hall, Englewood Cliffs, NJ, pp. 302-367 (1985).
Zareba et al., "T Wave Alternans," J. Am. Coll. Cardiol., vol. 23, pp. 1541-1546 (1994).
Zimmerman et al., "Beat-to-Beat Detection of Ventricular Late Potentials with High-Resolution Electrocardiography," American Heart Journal, vol. 121, No. 2, Part 1, pp. 576-585 (1991).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Generation of localized cardiac measures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Generation of localized cardiac measures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generation of localized cardiac measures will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-373718

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.