×

Blood signal suppressed enhanced magnetic resonance imaging

  • US 9,149,203 B2
  • Filed: 05/03/2011
  • Issued: 10/06/2015
  • Est. Priority Date: 05/05/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method of black-blood magnetic resonance imaging (MRI) with blood signal suppression that is independent of blood flow velocity and blood exchange, comprising:

  • a. administering an MRI contrast agent;

    b. waiting for the MRI contrast agent to arrive at the organ tissue of interest;

    thenc. using an RF transmitter, applying an RF pulse sequence having (i) a preparatory section that reduces the MRI magnetization of the organ tissue more than the MRI magnetization of blood pool, and (ii) following the preparatory section with an inversion RF pulse;

    d. after applying the RF pulse sequence, waiting for a period of time which is independent of blood flow, the wait time period selected so that (i) the MRI magnetization of healthy organ tissue will be different than the MRI magnetization of diseased organ tissue due to differences in organ tissue accumulation of the MRI contrast agent, and (ii) the MRI magnetization of blood pool will have a more negative signal vector than the MRI magnetization of healthy organ tissue;

    e. after waiting the period of time, acquiring magnetic resonance data from the organ tissue of interest; and

    f. generating a black blood image based on said acquired magnetic resonance data with a phase sensitive reconstruction.

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