Collimator and detector based medical imaging systems
AssigneeArgospect Technologies Inc.
InventorZhiping Mu
Life of this patent
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Abstract
A breast imaging system for examining a breast on a chest of a patient comprises first one or more shielding devices configured for placement on a first side of the breast and a first collimator and a first detector configured for placement on the first side of the breast and at a position that is further away from the breast and from the chest than the first one or more shielding devices are.
Claims20
A method for examining a subject using molecular imaging, the method comprising:
- filtering, by a first collimator, photons emitted from the subject;
- detecting, by a first detector, photons that pass through the first collimator;
- filtering, by a second collimator, photons emitted from the subject;
- detecting, by a second detector, photons that pass through the second collimator;
- and
- reconstructing, by an image processor, a medical image of the subject based on photons detected by both the first and second detectors, wherein the first and second collimators are positioned on a same side of the subject.
A method for examining a subject using molecular imaging, the method comprising:
- filtering, by a first collimator, radiation emitted from the subject;
- detecting, by a first detector, radiation that pass through the first collimator;
- filtering, by a second collimator, radiation emitted from the subject, wherein the first collimator partially blocks a field of view (FOV) of the second collimator;
- detecting, by a second detector, radiation that pass through the second collimator;
- and
- reconstructing, by an image processor, a medical image of the subject based on the radiation detected by both the first and second detectors, wherein the first and the second collimators are configured to be placed on a same side of the subject, and wherein the second collimator is positioned further away from the subject than the first collimator.
A method for examining a subject using molecular imaging, the method comprising:
- filtering, by a first collimator, radiation emitted from the subject;
- detecting, by a first detector, radiation that passes through the first collimator;
- filtering, by a second collimator, radiation emitted from the subject wherein the first collimator partially blocks a field of view (FOV) of the second collimator;
- detecting, by a second detector, radiation that pass through the second collimator;
- and
- reconstructing, by an image processor, a medical image of the subject based on the radiation detected by both the first and second detectors, wherein the first and the second collimators are configured to be placed on a same side of the subject, the second collimator is positioned further away from the subject than the first collimator, the first collimator comprises first openings for passing through radiation, the second collimator comprises second openings for passing through radiation, the first openings have a first aspect ratio of height to width, the second openings have a second aspect ratio of height to width, and wherein the first aspect ratio is higher than the second aspect ratio.
Dependencies are inferred from the claim text.