Multi-imaging modality tissue mimicking materials for imaging phantoms
First Claim
1. Multimodality tissue-mimicking material for phantoms that simulates fatty tissue comprising:
- an open cell mesh with interstices therein, the mesh holding oil, and oil absorbed in and held in the interstices of the mesh, wherein the material is in direct contact with a gel-forming material.
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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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Citations
21 Claims
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1. Multimodality tissue-mimicking material for phantoms that simulates fatty tissue comprising:
an open cell mesh with interstices therein, the mesh holding oil, and oil absorbed in and held in the interstices of the mesh, wherein the material is in direct contact with a gel-forming material. - View Dependent Claims (2, 5, 6, 7, 8)
- 3. The tissue-mimicking material of wherein the oil is vegetable oil.
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9. Multimodality tissue-mimicking material for phantoms that simulates fatty tissue comprising:
an open cell mesh with interstices therein, the mesh holding oil, and oil absorbed in and held in the interstices of the mesh; and
a phantom container, the tissue-mimicking material at least partially filling the phantom container.- View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
Specification