Surgery – Diagnostic testing – Detecting brain electric signal
Reexamination Certificate
2007-10-23
2007-10-23
Marmor, II, Charles A. (Department: 3735)
Surgery
Diagnostic testing
Detecting brain electric signal
C600S300000, C600S411000, C702S069000, C702S191000
Reexamination Certificate
active
10344776
ABSTRACT:
The method of reducing contamination of electrical signals recorded in the presence of repeated interference contamination comprises obtaining an electrical signal recorded in the presence of a contaminating signal, and detecting a timing signal that occurs at a fixed time point during the electrical signal relative to the onset of the contaminating signal. The electrical signal is digitized, wherein the digitizing begins with the timing signal. A plurality of digitized electrical signals is analyzed, wherein the electrical signals are synchronized with respect to the timing signal, to obtain an estimated contaminating signal that is subtracted from the digitized electrical signal. This method can be used with electrophysiological signals, such as EEG, ECG, EMG and galvanic skin response, and for elimination of noise associated with concurrently used methods such as MRI. The method of noise reduction is applicable to recordings of other electrical signals, including audio recordings.
REFERENCES:
patent: 4781200 (1988-11-01), Baker
patent: 4887609 (1989-12-01), Cole, Jr.
patent: 5217010 (1993-06-01), Tsitlik et al.
patent: 5230344 (1993-07-01), Ozdamar et al.
patent: 5341811 (1994-08-01), Cano
patent: 5436564 (1995-07-01), Kreger et al.
patent: 5445162 (1995-08-01), Ives
patent: 5482036 (1996-01-01), Diab et al.
patent: 5513649 (1996-05-01), Gevins et al.
patent: 5532944 (1996-07-01), Battista
patent: 5546332 (1996-08-01), Strobach
patent: 5704365 (1998-01-01), Albrecht et al.
patent: 5742900 (1998-04-01), Arnstein et al.
patent: 5748507 (1998-05-01), Abatzoglou et al.
patent: 5966684 (1999-10-01), Richardson et al.
patent: 6181961 (2001-01-01), Prass
patent: 6520283 (2003-02-01), Kemeny
patent: 7038601 (2006-05-01), Uutela et al.
patent: 2004/0106876 (2004-06-01), Schmid et al.
patent: 2005/0197586 (2005-09-01), Pearlman
patent: 2005/0277826 (2005-12-01), Dunseath
patent: WO 94/27497 (1994-12-01), None
Allen, P.J., et al., “A Method for Removing Imaging Artifact from Continuous EEG Recorded during Functional MRI”, in A. W. Toga, et al. (eds.)NeuroImage, vol. 12, No. 2, Aug. 2000, pp. 230-239.
Archer, J., et al., “Spike triggered fMRI: a technique for understanding the aetiology of epileptifrm activity”, in A. W. Toga, et al. (eds.)NeuroImage, vol. 13, No. 6, Jun. 2001, Seventh Annual Meeting of the Organization for Human Brain Mapping, Brighton, UK, p. S768.
Bonmassar, G., et al., “Simultaneous EEG/fMRI Recordings: 64 Channel VEPs and 3T fMRI”, in A. W. Toga et al. (eds.)NeuroImage, vol. 9, No. 6, Jun. 1999, p. S254.
Goldman, Robin I., et al., “Simultaneous EEG and fMRI of the alpha rhythm”, inBrain Imaging, NeuroReport, vol. 13, No. 18, Dec. 20, 2002, pp. 2487-2492.
Hoffmann, A., et al., “Electroencephalography During Functional Echo-Planar Imaging: Detection of Epileptic Spikes Using Post-processing Methods”, in F. W. Wehrli, et al. (eds.)Magnetic Resonance in Medicine, vol. 44, No. 5, Nov. 2000, pp. 791-798.
Krakow, K. et al., “Methodology: EEG-correlated fMRI”, in T. R. Henry, et al. (eds.)Advances In Neurology, vol. 83, Functional Imaging in the Epilepsies,, 2000, pp. 187-201.
Krakow, K., et al., “Spatio-temporal imaging of focal interictal epileptiform activity using EEG-triggered functional MRI”, inEpileptic Disorders, International Epilepsy Journal With Video Sequences, vol. 3, No. 2, Jun. 2001, pp. 67-73.
Krakow, K., et al., “Functional MRI Activation of Individual Interictal Epileptiform Spikes”, in A. W. Toga et al. (eds.)NeuroImage, vol. 13, No. 3, Mar. 2001, pp. 502-505.
Schomer, D.L., “EEG-Linked Functional Magnetic Resonance Imaging in Epilepsy and Cognitive Neurophysiology”, inJournal of Clinical Neurophysiology, vol. 17, No. 1, Jan. 2000, pp. 43-58.
Warach, S., et al., “EEG-triggered echo-planar functional MRI in epilepsy”, in R. B. Daroff, et al. (eds.)Neurology, vol. 47, No. 1, Jul. 1996, pp. 89-93.
Lemieux, L., et al., “Methodological Issues in EEG-correlated Functional MRI Experiments”, International Journal of Bioelectromagnetism (I)BEM), No. 1, vol. 1, 1999, pp. 1-13.
Krakow, K., et al., “EEG recording during fMRI experiments: image quality”, Human Brain Mapping 10(1): 10-5, May 2000.
Allen, P.J., et al., “Identification of EEG events in the MR scanner: the problem of pulse artifact and a method for its subtraction”, Neuroimage 8(3): 229-39, 1998.
Cohen, M.S., et al., “Localization of brain function using magnetic resonance imaging”, Trends in Neuroscience; 17(7): 268-77, 1994.
Ives, J.R., et al., “Monitoring the patient's EEG during echo planar MRI”, Electroencephalography & Clinical Neurophysiology. 87(6): 417-20, Dec. 1993.
Huang-Hellinger, et al., “Simultaneous Functional Magnetic Resonance Imaging and Electrophysiological Recording”, Human Brain Mapping 3(1):13-23, 1995.
Canady Karen S.
Candy & Lortz LLP
Marmor, II Charles A.
The Regents of the University of California
Toth Karen E
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