Surgery – Truss – Pad
Patent
1995-02-17
1997-03-11
Jastrzab, Jeffrey R.
Surgery
Truss
Pad
128702, A61B 504, A61N 136
Patent
active
056091575
ABSTRACT:
Systems and methods analyze biopotential morphologies in myocardial tissue by comparing a template of a cardiac event of known diagnosis to one or more samples of a paced cardiac event. The systems and methods generate an output based upon the comparison. The comparison yields an output, which indicates how alike the input sample is to the input template. The output can be used by the physician, for example, to aid in the location of sites that are potentially appropriate for ablation. The systems and methods employing different pacing and/or comparative techniques to provide multiple outputs. The pacing techniques that the systems and methods employ can comprise entrainment pacing or pace mapping. Various alternative comparison techniques include matched filtering, cross correlation, norm of the difference, and symmetry matching.
REFERENCES:
patent: 4105023 (1978-08-01), Marchese et al.
patent: 4149527 (1979-04-01), Naylor et al.
patent: 4244376 (1981-01-01), Fisher et al.
patent: 4674509 (1987-06-01), DeCote, Jr.
patent: 4723553 (1988-02-01), Miwa et al.
patent: 4793361 (1988-12-01), DuFault
patent: 4868773 (1989-09-01), Coyle et al.
patent: 5010888 (1991-04-01), Jadvar et al.
patent: 5029118 (1991-07-01), Nakajima et al.
patent: 5168459 (1992-12-01), Hiller
patent: 5238000 (1993-08-01), Niwa
patent: 5267567 (1993-12-01), Aung et al.
patent: 5273049 (1993-12-01), Steinhaus et al.
patent: 5311873 (1994-05-01), Savard et al.
patent: 5311874 (1994-05-01), Baumann et al.
patent: 5323781 (1994-06-01), Ideker et al.
patent: 5324284 (1994-06-01), Imran
patent: 5391199 (1995-02-01), Ben-Haim
patent: 5405375 (1995-04-01), Ayers et al.
patent: 5409000 (1995-04-01), Imran
patent: 5409007 (1995-04-01), Saunders et al.
patent: 5411025 (1995-05-01), Webster, Jr.
patent: 5413105 (1995-05-01), Forestieri
patent: 5415166 (1995-05-01), Imran
patent: 5436564 (1995-07-01), Kreger et al.
patent: 5447519 (1995-09-01), Peterson
patent: 5450846 (1995-09-01), Goldreyer
patent: 5454370 (1995-10-01), Avitall
patent: 5476495 (1995-12-01), Kordis et al.
patent: 5485849 (1996-01-01), Panescu et al.
patent: 5487391 (1996-01-01), Panescu
Orthogonal Electrode Catheter Array for Mapping of Endocardial Focal Site of Ventricular Activation, Desai. J.M. et al., Pace vol. 14 pp. 557-576. Apr. 1991, Part 1.
Other Time and Frequency Domain Techniques, Panescu, Dorin, Biomedical Digital Signal Processing Prentice Hall pp. 216-228, 1993.
A Fast Pipelined Cordic-Based Adaptive Lattice Filter, Panescu et al., The American Journal of Cardiology vol. 71, Apr. 1, 1993.
Anisotropic Reentry, Wit et al., Cardiac Mapping, Futura Publishing Co., pp. 127-154, 1993.
Reentrant and Nonreentrant Mechanisms Contribute to Arrhythmogenesis During Early Myocardial Ischemia: Results Using Three-Dimensional Mapping, Pogwizd et al., Circulation Research vol. 61 No. 3, Sep. 1987.
Identification of Reentry Circuit Sites During Catheter Mapping and Radiofrequency Ablation ofVentricular Tachycardia Late After Myocardial Infarction, Stevenson et al., Circulation, vo. 88 No. 4 Part 1, Oct. 1993 pp. 647-669.
Digital Signal Processing Chip Implementation for Detection andAnalysis of Intracardiac Electrograms, Chiang et al., Pace vol. 17, Aug. 1994, pp. 1373-1379.
Indiuction of ventricular tachycardia during programmed electrical stimulation: analysis of pacing methods, Prystowsky et al., Circulation, vol. 73 (supp II) Feb. 1986, pp. II-32-II-38.
Catheter Ablation of Ventricular Tachycardia, Morady, Tachycardias: Mechanisms and Management, pp. 537-556, 1993.
Endocardial Actrivation Mapping and Endocardial Pace-Mapping Using a Balloon Apparatus, Fann et al, The American Journal of Cardiology Volum 55, Apr. 1, 1985 pp. 1076-1083.
Demonstration of the presence of slow conduction during sustained ventricular tachycardia in man: use of transient entrainment of the tachycardia, Okumura et al., Circulation 75, No. 2, pp. 369-378. 1987.
Entrainment of ventricular tachycardia: explanation for surface electrocardiographic phenomena by analysis of electrograms recorded within the tachycardia circuit, Almendral et al. Circulation 77, No. 3 pp. 569-580, 1988.
Radiofrequency Catheter Ablation ofVentricular Tachycardia inPatient with Coronary Artery Disease, Morady et al., Circulation vol. 87 No. 2 Feb. 1993, pp. 363-372.
Adaptive Noise Cancelling: Principles and Applications, Widrow et al., Proceedings of the IEEE, Dec. 1975 pp. 1692-1710.
A Morphological Method for Separation ofVentricular Tachycardia from Ventricualr Fibrillation on Intracardiac Electrograms, Jenkins et al., Annual International Conference fo the I EEE Engineering in Medicine and Biology Society vol. 13 No. 2 1991 pp. 0742.
Correlation Template Analysis of Intracardiac Electrograms, Murphy et al, Annual International Conference of the IEEE Engineering in Medicine and Biology Societny vol. 13 No. 2 1991 pp. 0736-0737.
A Cyclostationary Least Mean Squares Algorithm for Discimination ofVentricular Tachycardia from Sinus Rhythm, Finelli et al., Annuyal International Conference of the IEEE Engineering in Medicine and Biology Society, vol. 13 No. 2 1991 pp. 0740-0741.
Panescu Dorin
Swanson David K.
Whayne James G.
EP Technologies, Inc.
Jastrzab Jeffrey R.
LandOfFree
Systems and methods for analyzing biopotential morphologies in b does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and methods for analyzing biopotential morphologies in b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for analyzing biopotential morphologies in b will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-436858