Millimeter wave 3-D breast imaging
First Claim
Patent Images
1. A method for imaging tissue comprising:
- providing a quasi-optical millimeter wave spectrometer having millimeter wave radiation from a backward-wave oscillator (BWO);
modulating the radiation using a ferrite modulator;
transforming the modulated radiation into a paraxial Gaussian beam;
compressing the tissue between a pair of dielectric compression plates;
transmitting the paraxial Gaussian beam through the compressed tissue; and
detecting tissue image amplitude and phase data as a function of frequency.
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Abstract
A system for imaging tissue includes a millimeter wave Quasi-optical backward wave oscillator. Tumorous tissue is detected in a reconstructed image using solvable inverse image reconstruction techniques. In one embodiment, three-dimensional breast imaging is enabled by providing radiation as a focused energy beam over a wide frequency range and at power levels to penetrate breast tissue disposed within dielectric compression plates.
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Citations
20 Claims
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1. A method for imaging tissue comprising:
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providing a quasi-optical millimeter wave spectrometer having millimeter wave radiation from a backward-wave oscillator (BWO); modulating the radiation using a ferrite modulator; transforming the modulated radiation into a paraxial Gaussian beam; compressing the tissue between a pair of dielectric compression plates; transmitting the paraxial Gaussian beam through the compressed tissue; and detecting tissue image amplitude and phase data as a function of frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for imaging tissue comprising:
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a millimeter wave radiation source; a waveguide coupled to the radiation source; an isolator coupled to the waveguide; a modulator coupled to the isolator; a first antenna coupled to the modulator; a first focusing device coupling radiation from the first antenna to a first compression plate; a second compression plate aligned with the first compression plate to form an aperture configured for receiving the tissue; wherein the modulator comprises a ferrite modulator and the millimeter wave radiation source comprises a backward-wave oscillator (BWO); and wherein the first antenna is configured for transforming millimeter wave radiation from the millimeter wave radiation source into a Gaussian beam. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory computer readable storage medium for tangibly storing thereon computer readable instructions for a method comprising:
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providing a quasi-optical millimeter wave spectrometer having a millimeter wave radiation from a backward-wave oscillator (BWO); modulating the radiation using a ferrite modulator; transforming the modulated radiation into a paraxial Gaussian beam; compressing tissue between a pair of dielectric compression plates; transmitting the paraxial Gaussian beam through the compressed tissue; and detecting tissue image amplitude and in phase data as a function of frequency.
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Specification