Multi-imaging modality tissue mimicking materials for imaging phantoms
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United States of America Patent
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Oct 21, 2003
Grant Date -
Jan 31, 2002
app pub date -
Jul 27, 2001
filing date -
Jul 14, 1999
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Abstract
Tissue-mimicking material suitable for phantoms for use with at least ultrasound and MRI have sections of material in contact with each other which mimic ultrasound and magnetic resonance imaging properties of human tissues, and preferably also computed tomography properties, so that the phantom can be used for the testing of imaging by various types of medical imagers. A suitable tissue-mimicking material for use in phantoms of this type includes an aqueous mixture of large organic water soluble molecules, a copper salt, a chelating agent for binding the copper ions in the salt, and a gel-forming material. Small glass beads may be intermixed therewith to provide a selected ultrasound attenuation coefficient without substantially affecting the MRI properties of the material. Larger glass beads may be used in a section to control primarily the ultrasound backscatter coefficient without significant effect on the ultrasound attenuation coefficient. Tissue-mimicking material that simulates muscle may have smaller glass beads and a higher concentration of gel-forming material than an adjacent section. Such similar materials in contact with one another show relative stability over extended periods of time.
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Patent Owner(s)
- WISCONSIN ALUMNI RESEARCH FOUNDATION
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
D'Souza, Warren D | Madison, WI | 10 | 240 |
Frank, Gary R | Madison, WI | 15 | 346 |
Madsen, Ernest L | Madison, WI | 17 | 477 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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