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Time course MRI imaging of brain functions

  • US 5,603,322 A
  • Filed: 12/27/1994
  • Issued: 02/18/1997
  • Est. Priority Date: 01/19/1993
  • Status: Expired due to Term
First Claim
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1. A method for producing an NMR brain function image, the steps comprising:

  • acquiring a series of NMR image data arrays over a period of time during which the subject'"'"'s brain is caused to function in a preselected temporal pattern to form a time course NMR image data set, the time course NMR image data set forming a set of time domain voxel vectors in which each time domain voxel vector indicates the NMR signal from a different region of the brain during said period of time;

    establishing a reference time domain voxel vector which is representative of the NMR data produced by an active region of the brain during the acquisition of the time course NMR image data set;

    producing a correlation image by calculating the dot product of the reference time domain voxel vector with respective time domain voxel vectors in the time course NMR image data set; and

    displaying the correlation image as a brain function image.

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