Zeugmatography process
Patent 4390840 Issued on June 28, 1983. Estimated Expiration Date: 
November 19, 2000. 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.
November 19, 2000. 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 ReferencesGyromagnetic resonance fourier transform zeugmatography Methods of deriving image information from objects Moving gradient zeugmatography Patent #: 4307343 InventorsApplicationNo. 06/208145 filed on 11/19/1980US Classes:324/309, To obtain localized resonance within a sample324/318Spectrometer componentsExaminersPrimary: Tokar, MichaelAttorney, Agent or FirmInternational ClassesG01R 33/36 (20060101)G01R 33/32 (20060101) G01R 33/48 (20060101) Foreign Application Priority Data1979-12-20 DEAbstractIn the exemplary embodiments, the imaging of the interior of bodies is rendered possible by means of nuclear magnetic resonance. Up to the present time, the known methods have such a small signal-to-noise ratio that the medical application is uncertain on account of the necessary long measuring duration and the thus unavoidable body movement. The disclosed method permits a significant raising of the signal-to-noise ratio and thus renders possible a shortening of the measuring time for the purpose of preparing medically utilizable images. For this purpose, the disclosure provides, through inversion of the nuclear magnetization by means of "fast adiabatic passage" in the primary field direction and simultaneous detection of the magnetization change by a longitudinal field detector, the attainment of a spatially resolved examination of extensive objects by means of nuclear magnetic resonance (NMR, entire body-zeugmatography) with substantially higher constant field intensities than previously. The signal-to-noise ratio can thereby be increased in the manner desired, and the measuring time can be shortened. The disclosed zeugmatography method is therefore also suitable for medical examinations.Other References
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