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Patents Record file:///C:/WIMR/remote_copy/faculty/documents/patents/NMR_sca...
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@MISC{Nc_patentsrecord,
author = {Moran Paul R. Winston-salem Nc},
title = {Patents Record file:///C:/WIMR/remote_copy/faculty/documents/patents/NMR_sca...},
year = {}
}
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Abstract
An NMR zeugmatographic scanner is modified to produce flow images. A motion sensitizing gradient field is applied to the gyromagnetic nuclei after transverse excitation and prior to emission measurement. The motion sensitized free induction signal which results is processed using an inverse Fourier transformation to produce a number of useful images. Exemplary Claims Claim 1: In a gyromagnetic resonance instrument for producing an image of an extended subject which contains both stationary gyromagnetic material and moving gyromagnetic material, in +L which the instrument +L performs a measurement cycle by applying a transverse excitation signal to a gyromagnetic material and to thereby impart a transverse magnetic moment thereto, and which produces a FID signal responsive to emissions by the transversely magnetized gyromagnetic material, the improvement comprising: means for locating the position of the gyromagnetic material within the extended subject which is producing a FID signal; means for motion sensitizing a FID signal in which a motion sensitizing magnetic field gradient F is applied to the gyromagnetic material for a period of time 2 T after its transverse excitation and prior to the production of the FID signal, and wherein the motion sensitizing magnetic field gradient F has alternating polarity with respect to the gyromagnetic material such that its integral over the time period 2 T is substantially zero; and
Keyphrases
gyromagnetic material fid signal patent record file faculty document patent nmr_sca magnetic field gradient extended subject transverse excitation stationary gyromagnetic material transverse magnetic moment thereto measurement cycle exemplary claim claim useful image gyromagnetic nucleus inverse fourier transformation transverse excitation signal fid signal responsive free induction signal nmr zeugmatographic scanner time period improvement comprising gradient field gyromagnetic resonance instrument flow image
