Use of repeated gradient echoes for noise reduction and improved NMR imaging
June 16, 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 ReferencesRapid magnetic resonance imaging using multiple phase encoded spin echoes in each of plural measurement cycles Imaging magnetic spin resonance method and apparatus Monitored echo gating for the reduction of motion artifacts Method for obtaining nuclear magnetic resonance information data Conjugate symmetry magnetic resonance imaging Steady-state echo magnetic resonance imaging Method of setting conditions of high-frequency magnetic field Short echo NMR imaging of sodium Method for rapid acquisition of spin resonance data for a spatially resolved investigation of an object Patent #: 4808928 InventorAssigneeApplicationNo. 368145 filed on 06/16/1989US Classes:324/309, To obtain localized resonance within a sample324/312By spectrum storage and analysisExaminersPrimary: Tokar, MichaelAttorney, Agent or FirmInternational ClassG01R 033/20AbstractA pulse sequence of an NMR system is disclosed which produces two spin echo signals which may be acquired. In addition, one or more gradient echos are produced and acquired. The gradient echo data is combined with the spin echo data to improve signal to noise ratio, provide T2 ' mapping, reduce motion induced artifacts, measure and correct for RF pulse imperfections, and to provide improved T2 measurement.Other References
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