Pacific Northwest X-Ray Inc.

       Mammography Research Phantom Set.       


Computerized Imaging Reference Systems, Inc! Designed to encompass the full range of size, glandularity and thickness encountered in clinical mammography

Features
  • Enable evaluation of image quality under varying degrees of thickness and glandularity
  • Provides accurate reliable test for radiation dose
  • Assures consistent production of diagnostically useful images

  • The CIRS mammography research set includes tissue equivalent phantoms 4, 5 and 6 cm thick. Each phantom contains identical embedded details (see map 011A). The glandular content of each phantom is 50%, 30%, and 20% respectively. Also included are phototimer compensation plates enabling a range of thickness from 0.5 cm to 7 cm with a glandular content of 30%, 50% and 70%.

    One compensation plate contains embedded details for evaluation of image quality. A 30 power hand held microscope and heavy duty foam lined carrying case are included.

    CIRS resin material mimics the photon attenuation coefficients of a range of breast tissues. Average elemental composition of the human breast being mimicked is based in the individual elemental composition of adipose and glandular tissue reported by Hammerstein.

    Attenuation coefficients are calculated by using the "mixture rule" and the Photon Mass Attenuation and EnergyAbsorption Coefficient Table of J.H. Hubbell.

    The methodology and design of these phantoms was developed by Dr. Panos Fatouros and his associates at the Medical College of Virginia.



    Specifications

    Line pair target
    1. 20 lp/mm

    Ca CO3 specs
    grain size (mm)
    2. 0.130
    3. 0.165
    4. 0.196
    5. 0.230
    6. 0.275
    7. 0.400
    8. 0.230
    9. 0.196
    10. 0.165
    11. 0.230
    12. 0.196
    13. 0.165

    Step Wedge 1 cm thick
    14. 100% gland
    15. 70% gland
    16. 50% gland
    17. 30% gland
    18. 100% adipose

    Fibers Nylon in wax inset
    diameter size (mm)
    19. 1.25
    20. 0.83
    21. 0.71
    22. 0.53
    23. 0.30

    Mass Thickness (mm)
    24. 4.76
    25. 3.16
    26. 2.38
    27. 1.98
    28. 1.59
    29. 1.19
    30. 0.90

    Optical Density
    31. reference zone







    Stock #
    Description
    Your Price
    012A
    Mammography Research Set
    $5,764.77


    Edge of Beam
    32. localization target

    Embedded Detail For Phototimer Compensation Plate

    Contrast Stepwedge
    (5 mm thickness)
    1. Adipose tissue
    2. Glandular tissue

    Hemispheric Masses
    75% Glandular Tissue
    Thickness (mm)
    3. 3.16
    4. 2.38
    5. 1.98
    6. 1.59
    7. 1.19
    8. 0.90

    Line pair test target
    20 lp/mm

    Specs
    Ca CO3 (mm)
    9. 0.39
    10. 0.27
    11. 0.23
    12. 0.20
    13. 0.16
    14. 0.13

    Alumina (mm)
    15. 0.39
    16. 0.27
    17. 0.23
    18. 0.20
    19. 0.16
    20. 0.13

    Fibril
    21. Diameter=25 Microns High Contrast
    22. Line pair test target 20 lp/mm










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    Phone: 1-503-667-3000
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    24 Hours a day!
    1-503-666-8855

    P.O. Box 625 * Gresham, OR  97030 * U.S.A.

    This web site is our catalog, no printed catalog is available. - Please keep checking back, changes to this site are made daily.
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