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MRI phantom including hollow fluid filled tubular textiles for calibrated anisotropic imaging

  • US 10,634,756 B2
  • Filed: 07/08/2019
  • Issued: 04/28/2020
  • Est. Priority Date: 07/11/2014
  • Status: Active Grant
First Claim
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1. An MRI phantom for calibrated anisotropic imaging comprising:

  • hollow tubular textile fibers, wherein each hollow tubular fiber has an outer diameter of less than 30 microns and an inner diameter of less than 15 microns, and wherein at least 70 percent of the hollow tubular fibers are filled with a fluid,fasciculi formed by at least some of the hollow tubular fluid filled textile fibers;

    tracks formed by the combination of at least some fasciculi; and

    fixed frames supporting the tracks within the phantom, wherein at least one fixed frame is formed as a fiber density frame which includes fiber density variations across the fixed frame, whereby the fibers/unit area in the fixed frame are provided at distinct known distinct test points across the fixed frame, and wherein at least one fiber density frame will vary the number of fibers at least at three distinct test points to provide the fiber density variations, and wherein at least one fiber density frame which varies the number of fibers at least at three distinct test points to provide the fiber density variations is configured to vary the number of fibers by a fixed fiber amount in adjacent test points.

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