×

Method and apparatus for the production of an NMR tomography image using an array of surface coils and multiplexers

  • US 5,572,130 A
  • Filed: 04/12/1995
  • Issued: 11/05/1996
  • Est. Priority Date: 04/12/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. Method for the generation of a nuclear magnetic resonance (NMR) image of an object using n>

  • 1 surface coils comprising the steps of;

    a) extracting one signal from each surface coil to produce n signals from the object;

    b) preamplifying each signal in a separate preamplifier to produce n preamplified signals;

    b1) multiplexing the n preamplified signals in a first multiplexer to produce n multiplexed preamplified signals;

    b2) feeding the n multiplexed preamplified signals into a phase sensitive detector;

    c) detecting the n preamplified signals in the phase sensitive detector to produce n low frequency signals;

    c1) multiplexing the n low frequency signals in a second multiplexer to produce n multiplexed low frequency signals;

    c2) feeding the n multiplexed low frequency signals into separate filters;

    d) filtering the low frequency signals in the separate filters to produce n filtered signals;

    e) multiplexing the n filtered signals in a third multiplexer to produce n multiplexed filtered signals;

    f) digitizing the n multiplexed filtered signals in an analog to digital converter (ADC) to produce n digitized signals;

    g) imaging the n digitized signals in a computer to produce n partial images of the object; and

    h) assembling the n partial images into a single image of the object.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×