Method for monitoring respiration with acquired NMR data
October 27, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re32701 Method and apparatus for respiration monitoring with an NMR scanner Method of eliminating breathing artifacts in NMR imaging Method for fast scan cine NMR imaging Centrally ordered phase encoding Monitored echo gating for the reduction of motion artifacts Rapid MRI using multiple receivers producing multiply phase-encoded data derived from a single NMR response Adaptive method for reducing motion and flow artifacts in NMR images Patent #: 4937526 InventorsAssigneeApplicationNo. 427401 filed on 10/27/1989US Classes:600/410, Magnetic resonance imaging or spectroscopy324/306, Determine fluid flow rate600/534Detecting body movement attending breathingExaminersPrimary: Tokar, MichaelAttorney, Agent or FirmInternational ClassG01R 033/20AbstractNMR data indicative of the motion of the anterior abdominal wall of a subject is acquired just prior to each image data pulse sequence in an NMR scan. The acquired motion NMR data is processed on-line to produce a signal indicative of the displacement of the abdominal wall from a reference position. The displacement values may be employed to produce a signal indicative of a respiration phase that can be used in connection with motion artifact reduction techniques.Field of SearchPARTICLE PRECESSION RESONANCEUsing a nuclear resonance spectrometer system Determine fluid flow rate To obtain localized resonance within a sample By scanning sample frequency spectrum With signal decoupling By spectrum storage and analysis Including polarizing magnetic field/radio frequency tuning With conditioning of transmitter signal Spectrometer components Electronic circuit elements | |
