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Nuclear Associates 18-252
Contrast Detail Phantom for Mammography
March 2005
Manual No. 18-252-1 Rev. 2
©2004, 2005 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies
Users Manual
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Fluke Biomedical
Radiation Management Services
6045 Cochran Road
Cleveland, Ohio 44139
440.498.2564
www.flukebiomedical.com/rms
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Introduction
Product Description
1
Section 1
Introduction
1.1 Product Description
The Contrast Detail Phantom for Mammography is designed to provide a means of quantitatively testing
and monitoring the total performance of an entire mammographic imaging chain. Its small size, as well as
the number and distribution of holes simulating embedded objects, make this phantom particularly useful
in evaluating digital spot mammography systems. With 49 holes generating subtle contrast variations, the
phantom makes it possible to detect small changes in overall system performance.
Included with your wise purchase is a tube of grease. The phantom can be taken apart and a liberal
application of grease applied to the inner (holed) surfaces, to decrease the contrast from air and eliminate
all air artifacts. After putting the phantom back together, simply wipe the excess grease from the edges.
Object Diameter
Row Number
1 0.169 4.292
2 0.099 2.524
3 0.058 1.485
4 0.034 0.873
5 0.020 0.513
6 0.011 0.302
7 0.007 0.177
Object Diameter and Contrast
Column
Number
1 0.033 0.853 6.60
2 0.021 0.533 4.20
3 0.013 0.332 2.60
4 0.008 0.208 1.70
5 0.005 0.129 1.00
6 0.003 0.080 0.65
7 0.002 0.050 0.41
(Inches) (mm)
Object Diameter
(Inches) (mm)
Object Depth
Mammographic Energies
Typical Contrast at
(%)
1-1
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Nuclear Associates 18-252
Operators Manual
The Contrast Detail Phantom for Mammography is easy to use. Simply place the phantom on the image
receptor surface in the same position as a breast. Position the x-ray tube and compression device as in a
craniocaudal examination. When using the phantom on prone position breast biopsy systems, use the
rotating top plate of the phantom and the compression device to secure the phantom against the image
receptor. Choose the appropriate kV and mAs factors (26 kV and 60 mAs works well on most systems),
or select automatic exposure control.
A good imaging system should resolve at least the following objects:
Row
Number
Minimum Number
of Objects
Detected
1 6
2 6
3 5
4 4
5 2
6 1
7 0
Minimum detectability score: 24/49
1-2
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(Blank Page)
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Fluke Biomedical
Radiation Management Services
6045 Cochran Road
Cleveland, Ohio 44139
440.498.2564
www.flukebiomedical.com/rms
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