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System for concurrent acquisition of MR anatomical brain images and MR angiograms without contrast-injection

  • US 8,378,680 B2
  • Filed: 09/21/2010
  • Issued: 02/19/2013
  • Est. Priority Date: 01/28/2010
  • Status: Active Grant
First Claim
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1. A system for concurrent acquisition of an MR anatomical image of an anatomical region of interest and an MR angiogram image of a vessel structure in the region of interest without the use of a contrast agent, comprising:

  • an MR imaging system for,in a first repetition time interval,generating a non-selective magnetization preparation pulse for magnetizing an anatomical volume encompassing blood flowing into a selected slab within the volume for blood signal suppression,generating RF excitation pulses andacquiring a first MR imaging dataset of said selected slab within the volume with a suppressed blood signal andin a second repetition time interval succeeding said first repetition time interval,generating a selected slab magnetization preparation pulse for magnetizing said selected slab,generating RF excitation pulses andacquiring a second MR imaging dataset of said selected slab within the volume; and

    an image data processor for substantially subtracting imaging data of said first MR imaging data set from said second MR imaging dataset to provide an image enhancing a vessel structure in said selected slab.

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