Phantom for optical and magnetic resonance imaging quality control
AssigneeImaging Diagnostic Systems, Inc.
InventorsRichard J. Grable, Steve Ponder, Steve Gardner, Paul Jackewicz, Jerry Porter
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Abstract
A breast-shaped phantom for optical imaging comprises a cup in the shape of a human breast in its natural pendant position and a filler occupying the volume of the cup. The cup forms an outer skin of the phantom with a thickness similar to human skin and with optical transparency at selected optical wavelengths similar to human skin. The filler material has optical scattering and absorption characteristics similar to human breast tissue. A method for making the phantom is also disclosed.
Claims18
A breast-shaped phantom for imaging by both a standard magnetic resonance imaging (MRI) device and an optical imaging device, which is evaluated using images of the phantom made by the MRI device and the optical imaging device, comprising:
- a) a cup in the shape of a female breast in its natural pendant position when the female is positioned prone face down with her breast hanging freely, said cup for forming an outer skin of said phantom having a thickness similar to human skin and having optical transparency at selected optical wavelengths similar to human skin, said cup having an internal volume;
- b) a filler material occupying the volume of said cup, said filler material having an optical scattering and absorption characteristics to simulate a human breast tissue when imaged by the optical imaging device;
- and
- c) said filler material being detectable by magnetic resonance imaging thereby to create a MRI image as a standard for comparison with an image generated by the optical imaging device under evaluation.
A breast-shaped phantom for imaging by both a standard magnetic resonance imaging (MRI) device and an optical imaging device, which is evaluated using images of the phantom made by the MRI device and the optical imaging device, comprising:
- a) a cup for forming an outer skin of said phantom having a thickness similar to human skin and having optical transparency at selected optical wavelengths similar to human skin made of polyurethane material, said cup having an outer shape similar to female breast in its natural pendant position when the female is positioned prone face down with her breast hanging freely;
- b) a filler material including agar occupying the internal volume of said cup;
- c) compounds mixed in with said filler material to modify the optical scattering and absorbing characteristics of said filler material to simulate human breast tissue when imaged by the optical imaging device;
- and
- d) said filler material and said compounds are detectable by magnetic resonance imaging thereby to create a MRI image as a standard for comparison with an image generated by the optical imaging device under evaluation.
Dependencies are inferred from the claim text.