Oriented mammography phantom

Details Oriented mammography phantom Oriented mammography phantom

1989-10-05

1992-03-10

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Mammography

378207, A61B 604

Patent

active

050954997

ABSTRACT:
A mammographic phantom is disclosed having an orienting feature which permits the consistant placement of the phantom in the imaging plane of an X-ray beam. The phantom includes test objects which indicate the resolution capability of the X-ray system, as well as a step wedge which indicates X-ray beam quality. Consistant orientation permits the image of the test objects to be readily located on an exposed X-ray film and permits the step wedge to be accurately positioned adjacent the center of the X-ray beam to thereby reduce scattering affects.

REFERENCES:
patent: 4649561 (1987-03-01), Arnold
patent: 4669104 (1987-05-01), Manganet et al.
patent: 4759045 (1988-07-01), Lasky
Computerized Imaging Reference Systems, Inc., Norfolk, Virginia, "Tissue-Equivalent Breast Phantoms".

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