The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2019
Filed:
Jul. 10, 2015
Brigham and Women's Hospital, Inc., Boston, MA (US);
University of Georgia Research Foundation, Inc., Athens, GA (US);
Wei Wang, Auburndale, MA (US);
HuaLei Zhang, Brookline, MA (US);
Ehud J. Schmidt, Newton, MA (US);
Tsz Ho Tse, Lawrenceville, GA (US);
BRIGHAM AND WOMEN'S HOSPTIAL, INC., Boston, MA (US);
UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC., Athens, GA (US);
Abstract
Systems and methods for estimating time-dependent voltages that are induced in electrophysiological monitoring systems by magnetic field gradients generated during a magnetic resonance imaging ('MRI') scan are provided. The gradient-induced voltages are subsequently removed from signals acquired with the electrophysiological monitoring system during an MRI scan. As an example, the electrophysiological monitoring system can include an electrocardiography ('ECG') system, an electroencephalography (“EEG”) system, an electromyography (“EMG”) system, a voltage device tracking (“VDT”) system, and so on. The gradient-induced voltages are estimated using a two-step procedure in which a learning algorithm is used to determine fitting parameters to be used in a model of the gradient-induced voltages. The fitting parameters are then used together with the model to extract the gradient-induced voltages from signals acquired during an MRI scan. The gradient-induced voltages can then be removed from the acquired signals.