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Method for performing single and multiple slice magnetic resonance spectroscopic imaging

  • US 5,283,526 A
  • Filed: 07/01/1992
  • Issued: 02/01/1994
  • Est. Priority Date: 07/01/1992
  • Status: Expired due to Term
First Claim
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1. A method of selectively imaging a two dimensional slice through an object with suppression of short T1 species water components comprising the steps of:

  • (a) placing said object in a magnetic field (B0) along one axis (z) thereby aligning nuclear spins in the slice along said axis;

    (b) applying an 180°

    RF inversion pulse to invert nuclear spins in said slice by 180°

    ;

    (c) applying a 90°

    RF pulse to nuclear spins in said slice after a time period after step (b) which is correlated to the spin-lattice relaxation time (T1) of said short T1 species such that the nuclear spins of said short T1 species have relaxed to a magnetic null;

    (d) applying a 180°

    RF pulse to nuclear spins in said slice which is spectrally and spatially selective of selected nuclear spins in said slice and suppresses nuclear spins of water in said slice;

    (e) detecting spin echo signals from said selected nuclear spins; and

    (f) generating a two dimensional image using the detected spin echo signals.

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