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Computed tomography image quality phantom

  • US 6,991,371 B2
  • Filed: 10/14/2003
  • Issued: 01/31/2006
  • Est. Priority Date: 10/14/2003
  • Status: Expired due to Fees
First Claim
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1. A device for calibrating a CT machine, said device comprising:

  • a housing member adapted to pass through an CT machine;

    a foam core member positioned in said housing, said foam core member having a first surface and an opposite second surface;

    a plurality of cylinder members positioned in said foam core;

    said cylinder members each having a different length and each having a constant cross-section throughout said length;

    each of said cylinder members having a first portion adjacent said first surface; and

    at least one of said cylinder members having a second portion adjacent said second surface.

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