STATIONARY SOURCE COMPUTED TOMOGRAPHY AND CT-MRI SYSTEMS
First Claim
1. A stationary source computed tomography (CT) architecture comprising:
- at least one detector disposed or distributed on a rotatable gantry;
at least one x-ray source disposed or distributed on a fixed structure;
wherein the detector is disposed or distributed on the gantry in a manner such that the detector is capable of rotating around a subject and of receiving a signal from the x-ray source.
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Accused Products
Abstract
The present invention provides stationary CT architecture for imaging at a faster temporal resolution and lower radiation dose. In embodiments, the architecture features stationary distributed x-ray sources and rotating x-ray detectors. Provided is a stationary source computed tomography (CT) architecture comprising: a detector disposed on a rotatable gantry; an x-ray source disposed on a fixed ring; wherein the detector is disposed on the gantry in a manner such that the detector is capable of rotating around a subject and of receiving a signal from the x-ray source. Embodiments of the invention include a CT-MRI scanner comprising the stationary CT architecture.
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Citations
48 Claims
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1. A stationary source computed tomography (CT) architecture comprising:
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at least one detector disposed or distributed on a rotatable gantry; at least one x-ray source disposed or distributed on a fixed structure; wherein the detector is disposed or distributed on the gantry in a manner such that the detector is capable of rotating around a subject and of receiving a signal from the x-ray source. - View Dependent Claims (2, 3, 5, 6)
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4. (canceled)
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7-8. -8. (canceled)
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9. A method of preparing an image of a region of interest of a subject comprising:
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irradiating a region of interest (ROI) of a subject using a stationary source computed tomography (CT) architecture comprising; at least one detector disposed or distributed on a rotatable gantry; at least one x-ray source disposed or distributed on a fixed structure; wherein the detector is disposed or distributed on the gantry in a manner such that the detector is capable of rotating around a subject and of receiving a signal from the x-ray source; and preparing an image of the ROI using the signal from the x-ray source detected by the detector in an interior reconstruction algorithm. - View Dependent Claims (10, 45, 46)
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11. An omni-tomography system comprising:
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a first imaging modality comprising a stationary source computed tomography (CT) architecture having; at least one detector disposed or distributed on a rotatable gantry; at least one x-ray source disposed or distributed on a fixed structure; wherein the detector is disposed or distributed on the gantry in a manner such that the detector is capable of rotating around a subject and of receiving a signal from the x-ray source; and a second imaging modality. - View Dependent Claims (12, 13, 14, 18, 19, 20, 21)
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15-17. -17. (canceled)
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22. (canceled)
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23. A method of imaging a ROI of a subject comprising:
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irradiating a region of interest (ROI) of the subject using an omni-tomography system comprising a CT imaging modality with stationary source computed tomography (CT) architecture comprising; at least one detector disposed or distributed on a rotatable gantry; at least one x-ray source disposed or distributed on a fixed structure; wherein the detector is disposed on the gantry in a manner such that the detector is capable of rotating around a subject and of receiving a signal from the x-ray source; and reconstructing an image of the ROI. - View Dependent Claims (28, 47, 48)
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24-27. -27. (canceled)
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29-33. -33. (canceled)
- 34. A computed tomography (CT) imaging apparatus comprising a stationary x-ray source.
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36-37. -37. (canceled)
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39-40. -40. (canceled)
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42. (canceled)
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43. A stationary-source and stationary-detector interior computed tomography (CT) architecture in the context of omni-tomography such as for a simultaneous CT-MRI scanner comprising:
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multiple sources disposed on a stationary gantry; matching detector pieces/modules on the gantry, each of which faces a corresponding source, and collectively define an interior region of interest (ROI); electro-magnetic shielding arrangements around the sources and detectors; and other system components for CT data acquisition and interior tomography reconstruction. - View Dependent Claims (44)
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Specification